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Do one thing, do it well . . . it's why
we only offer one nitro-powered model helicopter,
the Pantera 50.
An elegantly simple design, a
Pantera flies great, is both tough and
durable, and best of all, won't bust your budget!
If you're both thrifty and prudent, we may be making the
product for you. Moreover, if you scrimp and
sacrifice to meet your obligations (in order to have a little
fun), then once again, we may be making the perfect product for
you. Why? Because like you, we're
modelers too, which is why our Pantera is expressly
designed for those of us with:
If you just want the
facts, review the highlights of Sections I -
VI (plus the bullets points) and maybe read the photo
captions. Skip our expanded explanations because you'll get the
gist of why a Pantera is better for you.
Here's the nickel tour . .
.
I. Background - How we
got to where we are
PAB (plate-and-block) models are shiny
and look great. Conversely, they're comparatively fragile,
complex to assemble, maintain, and repair, plus they're
pricey. Polymer models, on the other hand, are lighter,
stronger, more durable, and less costly. While polymer models
are more sophisticated in design, quite frankly they aren't as
sexy. Which is better for you? As always it depends but
consider how law enforcement has moved from hand guns comprised of
metal frames to handguns, which offer the same fiber-reinforced
high-tech polymer frames for smilar reasons - lightweight,
durable, and high performance - for a decent price!
II. Features - Why we're
better than the competition
- Removable Bearing Blocks - easier maintenance/repair
- 40% Bigger Bearings - a heavy duty foundation
- Larger Clutch - big enough to harness a 91-class
engine
- 4 mm Flybar - think pitbull vs. poodle
- Mixture-servo Mount - convenient in-flight needle valve
adjustments
- Direct Servo Control - eliminate complex and sloppy
linkages
- 90° Linkages - easier to build and setup
- 8 Servo Mounts - scale modelers rejoice
- Triple Bearing Tail Rotor Grips - silky smooth, high-precision,
stronger
- Dual Tapered-Collet Clutch Hub Mounting - minimize runout for
smoother operation
III. Options - making a
good thing better
- 91-powered Pantera - simply wicked . . . an obscense amount of
horspower
- Output Shaft Stabilizers - crsiper cyclic response
and longer servo life
- Air Filter - increased engine
longevity, or why even the space shuttle has
them
IV. Extended Info
- behind the scenes
- Better Than Sex - hmmm, not really, but close, really
close
- Paid Pilots - a matter of trust, or why what the big boys fly
may not be right for you
- Overengineered - it didn't just happen, toughness is engineered
into the Pantera
- Proof of Concept Model - step 1, or carbon fiber and aluminum
does have a place
- CAD Refinement - step 2, add a little, subtract a little,
making it perfect
- Alumium Positive - step 3, here's where it begins to get
expensive
- Create the Mold - step 4, finally ready to inject polymer for
strong consistent quality
V. Conclusion - is the
Pantera the right heli for you?
If you value your time and money highly,
if simple is better, or when pragmatic considerations
like toughness, durability, and dependability trump glitz, and
if quite simply, your first consideration is flying
(versus showing off your latest upgrade), you're definitely
looking at the right product!
VI. Learn More - head-to-head
comparisons
How does the Pantera stack up to the
competition? We don't hide from anyone . . . or more simply,
why it ain't braggin' when you can back it up!
OK, we covered the highlights. Some
of you will be eager to get into the nitty gritty because
the details are meat and potatoes for you.
Continue reading as we expand on the above
briefing:
I. Background - How we got to
where we are
I. Live and learn, or why
repeating the mistakes of the past sucks: Model
airplanes have been with us seemingly forever - they actually
predate manned flight. Model helicopters, on the other hand,
are a newer contraption. From their inception in the early
70s and through the mid-80s, commercial model helicopters involved
the tedious assembly of stamped aluminum side frames combined
with aluminum blocks for the bearings and engine
mount. More tedious still, even a minor crash
involves the complete teardown of the model to examine it for
hidden damage. Presently, these designs replace the aluminum
side frames with composite materials like G10 or carbon
fiber. Nevertheless, sometimes the more things change, the
more they stay the same. Hang in as we explain.
Meanwhile, the market changed with
the introduction of models manufactured of high-tech engineering
polymers in the mid-80s. In one fell swoop, uncounted
thousands of modelers experienced the joy of flying without
the hassle of aluminum. Why? Because unlike aluminum,
which has three states, plastic only has two, e.g. either it's
broken, or good to go. Aluminum, as we all know, has a third
state, e.g. it can be bent.
Take for example an aluminum blade
grip, which can be ever so slightly tweeked in a crash.
Unfortunately, you may not realize it until you reinstall the part
and get to the flying field because it looks good to your eye (jigs
to determine integrity aren't offered). This may lead to
a model with the shakes, or which won't track, and this
may well be why! Moreover, aluminum may even have
damage, which is invisible to the eye, e.g. a crack requiring
dye-penetrant, or magnafluxing to identify . . . and since modelers
don't have access to these expensive techniques the part may fail
unexpectedly - ask any full-scale aviation mechanic if you doubt
the veracity of this.
For this reason, despite the very high
initial costs involved in making molds, we created the
Pantera using fiber-reinforced engineering polymers.
Granted, polymer parts aren't shiny like aluminum parts,
but an equivalent polymer part is every bit as stiff, usually
lighter too boot, and never stays bent - either it's damaged, or
you may safely reuse it. Moreover, polymers are superior
to aluminum in many respects not just because they're safer but
because they're corrosion resistant, tougher than aluminum, and 18%
lighter. Audacity Models offer model helicopters featuring
safe, simple, durable, lightweight, and inexpensive polymer
side frames.
Moreover, during the
preceeding 35-40 years, a few things have changed, but by and
large, improvements to both types of construction have been of an
evolutionary nature. For example, in the late 90s PAB (plate
and block) designs switch to composite side frames because
like polymers side frames, they also have two states. The
downside, of course, is how a set of carbon fiber side frames
may cost in excess of $100 vs. $30 for polymer side frames.
Meanwhile, polymer materials have advanced as well and
increased computational horsepower allows us to alter designs
in real time resulting in significantly more sophisticated products
since we can minimize weight and increase strength before we ever
commit to making a mold. Consequently, the strength or
power-to-weight ratio of polymer parts are superior to aluminum
parts.
Moreover, they both fly pretty much
the same too because when the main rotor is turning at 2000 RPM,
and the model's been setup with 11° of collective pitch
and 8° of cyclic pitch, basic physics dictate the rotor disk
really doesn't know - much less care - what materials are
used to secure the servos and engine to the side frames,
understand? Naturally this may lead you to wonder, which is
better for me? As usual, it depends.
Ultimately, whether you prefer a
carbon fiber model or a polymer model, it boils down to personal
preference. For example, PAB advantages chiefly include
appearance because even we'll admit carbon fiber side frames
'are' pretty and polished aluminum is shiny, which combine for
an attractive appearance - no question. Polymers,
meanwhile, are stronger, immensely less complex, safer and
thus, more practical. Moreover, ease of repair combined with
the inherent toughness result in polymer models being the perfect
choice for prudent modelers, especially when you're thrifty, e.g.
watching every Dollar.
Disadvantages of PAB include
increased complexity, and quite frankly, the fact they're
somewhat fragile and can crack like an egg during a crash.
Moreover, repairs can be quite expensive, and of course time
consuming because of their complex nature. Whether this last
point matters to you is a function of the value you place on your
time. E.g. if secure in your decision making ability and
don't need to floow the lead of others, or even if you quite simply
have other things competing for your attention, you're likely a
candidate for a polymer model.
Conversely, much as we may wish it were
true, the fact is polymer models aren't perfect either because
they're chracteristically rather subtle and low key (especially
compared to a carbon fiber model) because they're not glizy
and shiny. For some this is an important issue and we
recognize it. Thus, which you prefer depends largely on
either how you value your time, and/or your personality. For
example, if arriving at the flying field and one upping
your pals by showing off your latest aluminum upgrade is
important, we're probably not making the right
product for you because we believe the most cost effective upgrade
is burning more fuel. Hence, you'd be well advised so look
elsewhere. No offense, but we don't try to be all things to
all people.
Anyway, this is the Overview
section, which is where we point out Pantera
features. There are other places to learn about our product,
e.g. print magazines, online sources, and fellow modelers.
Print magazines, which vet their authors before delivering
advice are very good sources of information. The
Reviews tab above has several magazine reviews of the
Pantera. Read them at your liesure and see what the
pros think.
Meanwhile, online-information is
seductively free, and forums are especially popular because you can
ask an anonymous question without appearing stupid. However,
anonymous cuts both ways and hence, beware of keyboard-experts
- typically some guy posting as chucklehead37 because
sadly, he may seem expert to someone new at this, but until
you know who's who, in reality he may simply run his mouth better
than anything, e.g. he may only have 2-gallons of experience!
Finally, friends are good sources, but always remeber what's good
for an expert modeler may not be smart for someone learning to fly,
so parse their information with care.
Ultimately, you have to decide which side
your bread is buttered on and evaluate what's important to
you. This is why there's so much information on this
website. Meanwhile, as experienced modelers, in creating the
Pantera what was important to us were
simplicity, toughness, ease of repair, impeccable
handling, and a great price. Read carefully, and don't let
anybody (not even us) do your thinking for you.
How can you tell the difference, i.e.
identify when someone is simply polishing a turd with cheap shiny
aluminum upgrades? For one thing, if the idea of needing
to buy an upgrade aluminum head, or an aluminum cooling
fan before you've even flown the model makes sense, you might
be a candidtae for a composite model, e.g. we're not making the
right helicopter for you! If, however, this kind of thinking
leads you to wonder what drives otherwise sane folks to buy models,
which require an upgrade from the very beginning, you're not
alone. Remember, the very best bang for your buck is
burning more fuel - not shiny parts!
Moreover, if our being blunt, e.g.
speaking plainly and calling them as we see them offends you,
tough because this is who we are. Furthermore, we expect you
to act in your self interests just like we're acting in ours
by telling you about our product. We know you need
information to efficiently sort what's important to you and we
figure you'll be visiting other manufacturer's
websites, reading magazine reviews, and going online to see
what others have to say. The trick, as always, comes in
separating the wheat from the chaff, or avoiding information
overload. If anything we say doesn't make sense, just pick up
the phone and call. We can take the heat and won't duck your
questions because we're here to serve you! We're a small
company based in central Florida, and we've been called rednecks
but being from the South means we've always figured it's not
bragging if you can back it up.
Finally, are upgrades bad? No, not
hardly, but when we set out to design the
Pantera, our principal goal was to deliver a bird, which
in stock trim would perform anything you're capable of - no
upgrades needed! For example, she comes with long-lasting
urethane dampers, and instead of offering upgrade aluminum blade
grips, we make the plastic grips strong enough to withstand
the abuse. Do we offer any upgrades? Sure, but by and
large they're real upgrades. For example, the
Pantera is the only 50 designed with a 91-class
engine in mind. While 2-gallon experts debate the
relative merits of the latest 50-class engine du
jour, the astute amongst you realize there's no substitute for
cubic inches, so that's a real upgrade.
Similarly, we think it's important to filter the air goign to your
engine so that it will last longer, which is why we're the only
model in the class offering a custom designed snorkel and air
filter element. Now do you understand where we're coming
from? Ultimately a Pantera is unique for a lot of
reasons, so consider all the facts as you learn more.

- Mid-way through a roll, as if on a
string, the Pantera 50 handles as sweetly and
honestly as a pattern plane!
II. Features - the competition
never saw us coming
Removable Bearing Blocks - easier
maintenance/repair: Sturdy removeable bearing
blocks form the foundation of the Pantera 50. In
fact, the Pantera 50 is the only 50-class model crafted
of engineering-polymer whose three main shaft bearings are
carried in easy to maintain removeable bearing
blocks! The tail drive gear use a pair as well. As
any experienced heli pilot knows, it's a pain in the rear to split
side frames to replace bearings, yet mainstream, old fashioned
designs force this rigamerole on you - what a crock! Our removeable
bearing blocks mean you can R&R (remove and replace) main
shaft bearings following a crash in less time, and with less
hassle, or if damaged, replace just the block instead of the
entire side frame. After all, what's your time
worth?

- An axiom
of engineering is "The structure's only as good as the
foundation upon which it is built."
40%
Bigger Bearings - a heavy duty
foundation: It's one thing
to claim the Pantera 50 is heavy duty, it's a horse of
another color to prove it. Shoving a big engine into the
Pantera was the easy part, making it live was the real
trick. Where some view the Pantera 50 as
overengineered, astute modelers recognize our thinking of the
future led us to engineer her with the BBC in mind from the
begining. Cast in this light, our using 40% larger bearings
makes perfect sense! Consequently, the Pantera
50 is more durable than an ordinary 50-class - and bigger
bearings are part of the reason - but there's more.
- Bearings
40% larger than those used in competing models results in
tremendous durability.
Larger Clutch - how-to
harnesses a 91: As you
delve further into your research you'll encounter our competitive
reviews. One thing you'll see mentioned over and over is how
the Pantera clutch is so much larger than competing
designs. Once again, it's because planning for a 91
colored our thinking! Arguing which 50 makes more power
simply isn't even germane to the discussion when you consider
the horsepower of a 91, which was the task we faced. So even
if you never opt for the big block, you win because the bigger
clutch is more durable and withstands more
abuse. Basically, the Pantera is built
like a brick outhouse for a reason!

- Compared to competitive 50-class helis,
the Pantera 50 clutch is huge!
4 mm
Flybar - think pitbull vs. poodle: If you wish your
50-class heli had that crisp locked-in feel of a 90-class heli,
instead of being twitchy like the typical 50, then you'll
appreciate how the Pantera 50 uses a 4 mm diameter flybar.
It's 85% stiffer than the whimpy 3 mm flybar used on competing
50-class models. But the real benefit is how much easier it
is for you to fly the maneuvers with the same "snap" as the
pros. Granted, they have the advantage of being more
experienced, but the Pantera 50 will help you grow to
their level very quickly. Moreover, the 4 mm diameter flybar
opens the door to the many optional 4-mm mount flybar paddles
(previous, the exclusive domain of 90-class birds).

- Versus the whimpy 3 mm flybar of this
Hirobo model, our 4mm flybar is 85% stiffer - think pitbull
vs. poodle
Mixture-servo Mount - convenient in-flight
adjustment: We've all had it
happen; we discover the fuel mixture is too lean in flight. By the
time we recognize it and land, the engine may be damaged. If you've
ever had an engine go lean while flying you'll appreciate how easy
it is to install a mixture servo in the Pantera 50 using
the built-in frame-mount. At last, you can fine tune your
engine's air-fuel ratio while you fly instead having to land to
make adjustments! Use an extra channel on your transmitter,
or plug the mixture servo into the mixture port of your
governor and its onboard computer manages both the RPM and fuel
mixture for you!

- Adding a mixture servo to the
Pantera 50 is dead nuts simple
Direct Servo Control - reduces
sloppy linkages: The
Pantera 50 features direct servo control and as a
consequence, there are fewer linkages to get worn and sloppy.
You gain a huge advantage - in both simplicity and precision - by
eliminating the complicated and old fashioned, push-pull linkages
found in competing designs. While simpler is a
no-brainer, eliminating a butt-load of linkages
means it's easier to build your model too, and of course, reduced
wear means your maneuvers are more consistent because you elimiate
the slop.

- Just 3 linkage rods control the
Pantera's swashplate while competing models frequently
require as many as 12.
90°
Linkages - easier to build and
setup: While it's easy
to appreciate how all the extra linkages, bellcranks,
bearings, and shafts of competing designs get sloppy as they wear
over time, there's another issue. Many competing
models mount the servos in the very vulnerable nose, which
results in expensive damage to the servos. Worse, is how
tedious it is to R&R all those servos and linkages because
of the frequently broken servo sub-frame - get a
life! Moreover, in a crash, it's easy for linkages to get
lost. Frankly, direct servo control is a huge advantage for
the Pantera 50 not just because it's simpler and more
precise, but for one other reason, it's far easier to set up your
model since all the linkages make a perfect 90° at the neutral
position. Moreover, better protecting the servos within the
side frame wins points too!

- Easier to build linkages in a
Pantera 50; just one from each servo, and they make 90° at
the midpoint
8
Servo Mounts - scale modelers rejoice:
Whether it's the articulating horizontal stab of a Blackhawk, the
retractable landing gear of a Bell 222, or the spot light beneath a
police Jet Ranger, you'll appreciate how the Pantera 50
makes it easy for you to install as many as 3 option servos within
the side frames for a total of 8 (3 plus the standard 5 servos used
for flight). Whether you're modeling a 15 million candle
power Night Sun spot light of a police Jet Ranger, or aiming the
20-mm three-barrel GE cannon in the undernose turret of a Boeing
RAH-66 Comanche model, we make it easy to unleash your
creativity!
Moreover, it's a fact, the Pantera
50 is particularly well suited for scale use. It's not
just the extra servo mounts but attention to details like
how the radio platform, because it merely supports the
receiver and battery (which can be readily relocated almost
anywhere within a cavernous scale fuselage), can be removed
altogether without affecting the integrity of the model.
Unlike competing designs, which use a separate servo sub-fame,
the Pantera 50 servos mount directly in the side
frames! Why is this important? Because the eye is drawn
to the cockpit of a scale bird, which means you can detail the
cockpit area with instrument panel, seats, pedals, etc. to your
heart's content!

- Everything forward of the bright green
line of the Agusta A109 fuselage can be removed and
relocated
Triple Bearing Tail Rotor Grips - silky
smooth: A steel tail
rotor hub is an option for some of our competitors, yet it's
standard on the Pantera 50. Worse, some competing designs
use weaker 2-piece tail rotor grips, but we know the tail
rotor grips see some pretty intense loads and hence, the
Pantera 50 features one-piece tail grips - after all, you
never see two-piece main rotor grips, right?
Furthermore, believe it or not, some 50-class models (Kinetic)
come with just one ball bearing in each tail rotor grip!
Others (Raptor) improve on this by using two ball bearings in
each grip. Still others, improve it further by using one ball
bearing and one thrust bearing in each tail grip (SDX).
However, the Pantera 50, like high end 90-class
helis, features two ball bearings and one thrust bearing in each
tail rotor grip - a triple bearing set up! Which would you
prefer?

- Triple bearings in the heavy duty
one-pece tail rotor grips of the Pantera 50
Dual Tapered-Collet Clutch Hub Mounting - minimize
runout: Unlike our
50-class competitors, which feature a screw-on clutch hub resulting
in no possible runout adjustments (basically you're at the mercy of
whatever runout results when you assemble it), the Pantera
is built like the big dogs. Top of the line 90-class birds
feature the same dual tapered-collet clutch hub mount, just
like a Pantera. Note the tapered collet (made of
brass), then the hub slips onto it, and then the tapered steel
engine nut, securing the hub between the two tapered pieces to
self-center the assembly. There are some places you just
don't want to take shortcuts in manufacturing and this is one of
them!

- Dual tapered-collets for mounting the
clutch hub - just like high end 91-class helis
III. Options - making a good thing
better
91-powered Pantera - simply
wicked: If you live out west, in high country
like Denver, CO you've experienced the huge power loss due to
density altitude (i.e. +5000' vs. sea level). To overcome this the
Pantera 50 accepts 91-class big block engine because
there's no substitute for cubic inches when it comes to making
horsepower. Moreover, she's designed with 620 mm blades in mind but
can accept up to 640 mm without modification.
However, despite being primarily designed
for a 50-class engine (or even the super economical OS 46FX-H with
an optional short clutch hub), we knew guys living closer to sea
level would enjoy the rush as well. Here, at last, is
the real reason for the general heavy duty nature of the
Pantera 50. You see, as a hotrodder at heart,
the bigger engine was in our mind from the get
go! Meanwhile, we've also seen plenty of backyard
engineering efforts (many of them superb) leading
to home-brew 70-conversions of competitors 50-class models,
which ultimately prove impractical for the same reasons.
E.g they wore out quickly because the bearings were too
small, the clutch couldn't handle the power, the fan couldn't
cool it, the fuel tank was too small, etc. Consequently, we
engineered solutions to these issues from the beginning, i.e as
part of the very foundation of the Pantera
50 so everybody could join the fun. Some say it's sick,
but a Pantera with a big block is a never ending
rush, and yes, she's wickedly quick!
Z.JPG)
- The mighty YS91SR installed in the
Pantera makes for an insane experience
Output Shaft Stabilizers - crsiper cyclic
response: During maneuvers, the feedback from the
rotor disk may actually force the swashplate servos to give
slightly on their rubber mounting grommets. If you spend big money
for top drawer servos, you're wasting some of their capabilties
because the flex in the servo mount makes it more difficult to be a
consistent pilot. The Pantera's optional output shaft
stabilizers (the bridge over the top of the three swashplate
servos) gives you a tighter and immensely more controlled
response. Naturally, if you're just learning to hover it may
not think it matters, but you benefit even then because the
supports increase the life of the servos. Plus, once you get
into forward flight and 3D aerobatics, even average pilots
feel the improvement.

- Replace the servo arm screw with our
special output shaft, then slip the bridge with bearing over the
servo.
Air Filter - increased engine
longevity: Have you ever seen the air filter on your
car engine, or the one for your lawnmower? How about the air filter
on a motorcycle, or truck? Even race cars and street motor cycles
have them. It's pretty simple, an air filter increases the
longevity of an engine. Unless you think money grows on
trees, this is important to you - especially during tight economic
times - so unlike the competition, the Pantera 50 has an
air filter available. Enough said? Not
quite!

- Cooler, denser air delivered
through the filter results in more fuel for the mix and thus, more
horsepower
Some modelers actually believe their
flying field is dirt free (yeah right). But what about when
you crash? The fact is the Pantera 50 air filter
really delivers the goods during a chicken dance. That's what we
call what happens when a model crashes and the engine keeps running
and basically, the model flops around on the ground until the fuel
is exhuasted. Dirt goes everywhere, especially inside the engine,
which ruins it!

- Straight from a
chicken dance, the production snorkel is clear silicone and the
filter is huge!
So just how good is the Pantera
50 air filter system at protecting your engine? Here's the
money shot, i.e. where a picture is worth a thousand words . . .
and more than 200 bucks for an engine! Note how clean the inside of
the carburetor throat is? Need we say more?

- Sand got
everywhere "except" inside the carburetor, thereby protecting this
engine!
IV. Extended Info
- behind the scenes
- Better Than Sex - hmmmm
- Paid Pilots - a matter of trust
- Overengineered - it didn't just happen
- Proof of Concept Model - step 1
- CAD Refinement - step 2
- Alumium Positive - step 3
- Create the Mold -
step 4
Better Than Sex - hmmmm: Model helicopters are more fun than sex! OK,
that's an exaggeration. What's not an exaggeration is how
exhilarating helis are to fly, even those from our competition!
That said, we think a Pantera 50 is the best heli for your
money . . . here's why.

- Pantera
50 captured in smooth, stable, slow forward flight
When you boil it down,
Audacity Models have two types of
customers. Those with experience, and those new to the sport. How
do you make one model satisfy the requirements of both the beginner
and the expert? As it turns out, it's pretty easy because when we
set out to create the Pantera 50, our parameters were
simple. It had to fly great, be durable, and inexpensive - in that
order - because one thing is certain; regardless of experience,
flash doesn't trump substance, nobody likes to waste money, and how
it flies matters a lot!
"People who think for
themselves realize good design, good performance, and good
value never gets old."
- John Beech, Owner, Audacity
Models, Sanford, FL
Paid Pilots - a matter of trust: If somebody is flying one of our models,
they bought it with cold hard cash. The fact is
the Pantera 50 has developed an impressive following,
including some of the best model pilots in the world. This brings
up the subject of "paid" pilots. Audacity Models doesn't pay
pilots to fly our products, or say good things. Mostly it's
because it sticks in the John's craw, but partly it's because it
raises our costs (thereby making a product more expensive for
you). There's no such thing as a free lunch and if we were to
pay people to say good things, like some competitors who employ top
pilots and feed them what to say, we just have to pass the
cost on to you, understand?
"Flying helis makes me a better
fixed-wing pilot because it keeps my fingers nimble. I fly RPVs in
Iraq for my country, giant scale models professionally stateside,
and my Pantera 50 for the fun of it. I usually fly it like a stole
it because it handles great, is simple to maintain, and has proven
to be tough, which means I just don't worry about the inevitable.
I'm a better pilot as a result, and am happy to share this with
anybody who wonders why I'd rather fly a plastic-fantastic versus a
fancy carbon fiber model. Basically, I'm at the top of my game and
don't have to impress anybody. For me, helicopters are all about
the fun"
- Billy Hemple, Tucson,
AZ
We couldn't say it better! So while we
set out to make the Pantera 50 a best-in-class 50-powered
model expressly for experienced pilots - and succeeded - we soon
learned she's pretty good for beginners too. It's because learning
to fly a heli isn't easy, and fixing it after a crash is part and
parcel with getting into the sport. By the way, if it strikes you
as odd we're talking about crashing while describing why to buy our
product, it's because we don't believe in blowing smoke up your
skirt. We believe you should know everything up front before you
make your decision.

- Yee haw . . live dangerously with
a high speed inverted backwards hurricane!
Overengineered - it didn't just happen:
For example, part of what makes the
Pantera 50 so good for the beginner is it's over
engineered compared to an ordinary 50 basically because it may have
to handle a 91-class engine. As it turns out, this makes it
tough and durable enough to survive the inevitable knocks
associated with learning to fly too. Meanwhile, part of the reason
we don't have to pay people to say good things about us is because
of what our customers say about us . . .
"I plowed in the Pantera doing
inverted hurricanes today (again). It hit hard. The guys at the
field expected to see a shattered heli when we got out to it. I'm
happy to report no frame or head damage. Boom, skids, blades, a few
lost links but that's it. Any other heli I own would have been
totalled. Gotta love this super plastic!"
- David Wilson,
Nashville, TN
Proof of Concept Model - step 1: Super polymer? Well, sort of
because the Pantera 50 is largely constructed of
a fabulous fiber-reinforced engineering-polymer material, which is
so tough some call it super! This stuff is found in some
interesting products because the tough, fiber-reinforced
engineering-polymer material is so forgiving it often bends and
flexes instead of breaking, which is a good thing when you hit the
ground, right? Moreover, it's why Austrian arms maker
Glock pioneered its use for the frame of their superb
handguns (used by cops around the world), which is pretty much
the very same reason we use it for the Pantera 50
side frames, e.g. it's tough, lightweight, and
high-tech! Frankly, it's the secret behind the Pantera
50, i.e. why it survives crashing better than fancy carbon
fiber helis, which are fragile and may crack like an egg during
impact. In fact, it Timex wouldn't get mad at us, we'd swipe
their slogan and co-opt - "The Pantera is so tough
she takes a lickin' and keeps on . . .", but we digress.
Anyway, since we're talking about side
frames and materials, have you ever wondered how a model comes into
being? The first step is to actually prototype the side frames to
establish basic layout. We use flat carbon fiber plate, some molded
plastic pieces, and aluminum bits. Granted, it's relatively
unsophisticated but it serves to get the thing into the air so we
can develop it further. Amazingly, there are some manufacurers,
which stop right here in the process. However, in the picture
below, note how this is only the begining of our process!
Why? Well, first off, we'll acknowledge there are some
advantages of using carbon for a finished product. It's
light, easy to change layouts (from a manufacturing point of view
for prototyping), and looks great. However, the
disadvantages are it's time consuming to assemble (because
it's tedious to align and requires expert technique, which many
folks never acquire), and generally it's a pain in the rear to work
on because it's more complicated, i.e. installing servos requires
extra hardware beyond that needed with polymer models.
Also, edges can be sharp unless you take the time to sand them
all down. However, there's a dangerous aspect, which somehow
never makes it into their sale literature, which is how the
material can blank out RF (the radio signal from your transmitter)
leading to a crash. Worse, in the event of a crash,
carbon fiber can be somewhat fragile and crack like an egg!
But what sucks is how a set of carbon fiber side frames can be 5X
the cost of plastic! On popular imported products they can be as
much as the cost of an entire Pantera 50 kit!
By the way, notice the weave in the side frames of the carbon
pieces (below). Most folks love this look, and we agree it looks
snazy, but ask yourself this. Do the disadvantages of RF
blanking, fragile, expensive, and complex outweigh the
advantages?
Frankly, if you're prudent modeler,
e.g. careful with your spending, the smarter choice is a
model, which is both tough and inexpensive and thus, made of
polymer. Moreover, since carbon models in
these larger sizes are not all that tough, and certainly
not inexpensive, you may wonder why we use them
for prototyping. It's because it's very easy to whip out
a changese and go test it. Once we lock down the design,
we're ready for the next step - computer modeling. Below is
an early prototype of the Pantera,
Yup, our first step in making a 50-class model involves making
it of carbon fiber!
- Establishing the
basic layout comes first. We use carbon fiber, plastic, and
aluminum for the proof of concept model.
CAD Refinement - step 2: OK, so after several prototypes we've
established the proof of concept model by using carbon and
some bits to get the layout right. Our second step is via
computer aided drafting and modeling, or simulation. This just
means we're using software like CATIA, which is the very same
sophisticated CAD (computer aided design) tool used by the likes of
Ford and Boeing to refine the process. Here's where we really get
sophisticated! The beauty of software is we can take what we
learned with our prototypes and develop the model into a more
elegant creation through the advantages of virtualization and
simulation. Simply put, it means we can apply the power of a
virtual engine and see how the model reacts. As a consequence, we
can remove material where stresses are low (to make it lighter), or
add material where the model needs it (to be stronger). By the way,
for giggles and grins we doubled the typical 50-class engine's 2
horsepower and in the computer gave the Pantera 50 as much
as 4 horsepower! We used finite element analysis and learned what
it took to make the Pantera 50 handle such an obscene
amount of horsepower (just an extra half ounce in the side
frames). Next, because occasionaly been accused of being
more than a little power hungry said, "What the heck, let's do
it!". So we made the frame strong enough for a stout 91
engine, which approaches this kind of horsepower because we thought
it would be a hoot to offer an option to slip a monster 91-class
engine into the 50-class Pantera 50. More
later!

- Using CAD
(computer aided design) results in sophisticated
virtualization.
Aluminum Positive - step 3: The third step is to make an aluminum
positive. Remember, a mold is a negative so a positive is
something, which looks like what we're going to get. In fact, if we
painted it black it would look exactly what we'll end up with. Many
expensive hours later, the CNC (computer numerical control)
milling machine has carved out a set of frames using a solid billet
of aluminum! Why go to this trouble and expense? Simple, it's
because we've found nothing beats having something you can actually
hold in our hands into which we can fit the engine and the servo
components, i.e. to see if what we virtualized in the computer
holds up in the real world. This is how we ensure it's really
right.
- Using a CNC
(computer numerical control) mill, this is solid billet aluminum
frame!
Create the Mold - step 4: The fourth and final step is the actual
molded product. In fact, fiber-reinforced engineering-polymer
allows us to make intricate parts, which are both strong and light.
Best of all, it means we create low-part count models with the
advantage of stiffness, like a carbon fiber model, but without the
disadvantage of being harder to assemble, fragile, and
expensive. Simply put, we leverage the inherent toughness of
the polymer material and create a semi-monocoque design. Is it as
sexy as the carbon fiber frame models? No, but you benefit in
the real world because the entire frame assembly is made of just
two frame pieces, a left and a right side. Consequently,
a very complex molded assembly comes together in minutes, and
best of all, it's both extraordinarily rigid and light.
Moreover, it's tough, and inexpensive. Think about it;
would you rather pay 150 bucks for a set of side frames made of
carbon fiber, or less than $30 for a set of ours?

- In the neutral
position, all linkages make a 90° angle, which make life simple
during setup!
V. Conclusion - is she the right
heli for you?
Savvy pilots allocate their
money wisely. They pinch pennies 'till they squeal so they
can spend freely on their 90-class bird.
These guys fly a 50-class beater and rely on the savings in fuel
and cheaper parts to refine their skills because they're
flying it more frequently, i.e. to practice new
maneuvers. Before long they get to the point where
they're flying without fear, which is the key to
becoming a better pilot in the first place since it's nearly
impossible to fly with courage when crashing a 90 can easily
exceed 500-600 bucks, and result in weeks of downtime.
Meanwhile, the wannabes and 2-gallon experts, enthralled by what
the paid pilots are flying instead of flying what makes sense,
unwittingly complicate their lives with a high-maintenance
50-class heli - duh! Subsequently, they find themselves
flying a 50, which is complicated like a 90 (and takes far more
time and money to repair) and before long (usually by the
third crash) are actually regressing simply due to their quite
natural fear for the time and money required to effect repairs -
just like with a 90! Is it just us, or does this
strike you as odd behavior since it defeats the very
purpose of a 50-class
helicopter?
Anyway, completing a Pantera 50
requires an engine and muffler, blades, 6-channel radio, gyroscope,
and governor. Weighing about 7-1/2 pounds ready to fly,
balance how she goes a mere ounce more than a Raptor 50, a few
ounces less than the Evo 50, a few ounces more than the T-Rex
600N, and about the same as the Vibe 50 against her heavy duty
nature, which resulted from being designed to harness the power of
a 91-class engine! Furthermore, while the Pantera
50 is usually seen sporting 600mm main rotor blades, the fact
is she's really designed for 620 mm blades, which
deliver superb autorotations!
"I can fly anything I want but the
Pantera 50 is my favorite for rolling circles and shooting
autorotations."
- Ron Lund, Ron Lund's Heliproz South, Corpus Christy,
TX
Later, when you're comfortable with what
she can do, slip in the 91 big block and raise a little Hell
while retaining the consistent handling characteristics,
reliability, and inexpensive parts of a standard Pantera
50 without the crazy expense of a 91-class bird. Yup, it's
easy to get the best of both worlds, which means you can
really go from mild to wild with just one helicopter, the
Pantera 50!
Ultimately, all the 50-class helis are
about the same size, weigh about the same, use the same engine and
rotor blades turning at about the same RPMs, and thus, fly
similarly. In fact, though it pains us to admit it, there's really
not a bad one in the group we compete against.
If you're new to helis, where the
Pantera especially shines is when you're learning to fly
because she's so stable in the hover. Don't be intimidated,
and trust you too can learn to fly with a model like this.
Later, after you're comfortable, you can tune her up for maximum
performance confident she'll still be the same smooth, predictable,
and easy to handle machine as ever, even in the wind.
If you're experienced, unlike a wannabee,
you aren't sucked into shiny, gee-whiz, upgrades because they're
available and pretty. Your practical side comes to the fore
because when you attend fun flies, you're prepared
to show off your skills with your 90 because at
your home field, you burned many gallons of fuel practicing with
your 50-class beater - it makes perfect sense! The
Pantera is about competent, working-man values, not
flashy in the hopes someone will notice you. In
fact, we've never quite understood what leads some guys to fly
50-class models, which are loaded with aluminum upgrades since
these kind of defeat the very purpose of the 50. We're
hoping you select our Pantera as the right model for
you because it makes good, sound, common sense.
Fortunately, she's one of those models, which makes you look
like a better pilot, so whether you're a beginner or expert,
once you compare the Pantera 50 to the competition, we
believe you'll discover she's the right heli for you.

- Blasting through the arc of a
tick-tock, the Pantera's manners are both impecable and
predictable.
As for us, we're a small company so we
can keep a tight rein on our costs. This results in
a great heli at a great price. Best of all, you can
always pick up the phone and talk to us (even John, the owner of
the company) because we're in Sanford, FL so instead of
shouting at the base of Great Wall of China in hopes somebody gives
a damn, i.e. will deign to give you time of day, you can get
prompt service and courteous answers!
While we could go on until we're
blue in the face, quite often the best way to learn
something about us and our models is to listen to our customers . .
.
"Yes, there are a number of issues
with the Pantera you need to know about. It is dirt cheap to buy,
it's durable as a tank, and flies like you can't believe! You can
set it up as a beginner's hovering machine in which case you won't
get over how well it does that. Or, with no additional purchases,
reconfigure the head for full on 3D."
- Marty Hammersmith, Lawrenceburg, IN
VI. Learn More - head-to-head
comparisons
Curious how a Pantera 50
stacks up in the 50-class? We're not afraid to go
head-to-head with anybody!
To learn what they don't want you to
know, just select a tab like [v. Evo 50], [v. Raptor 50],
or [v. T-Rex 600N] and discover where we kick some butt!
Other tabs include [Documents], where you
can download the instruction manual, as well as [Accessories],
[Articles] to read what the print magazines have had to say,
[Tuning], and [Videos], which show you what even a bone-stoke
Pantera 50 is capable of!
Thank you for considering our
product.

John Beech - General Manager (and
janitor)
Audacity Models
Sanford, Florida
The following documents are available for your perusal. Please note that many of these documents will required Adobe Acrobat Reader.
The Pantera 50 has been the subject of several magazine
reviews and articles. Magazines take quite an interest in the
integrity of their authors because it reflects on the magazine as a
source of information in general. Consequently, they
very careful vet these authors, plus there's an editor looking
over their shoulder as well, so these are a neutral and relatively
unbased examination of our product. Each image represents the
magazine cover of the pertinent issue and is a .PDF
file. Just click on the image and it will open a new
browser window. Alternatively, hover your mouse pointer over
the particular cover, right-click instead and select, for example,
'Save Target As' to download the .PDF file to your own computer,
or select 'Print Target' if you'd prefer a hard-copy, which
may be more convenient for reading and taking notes.
These reviews are in PDF format. You
need Adobe Reader to view the files.
Click to download this free
program.
More ways to tune a Pantera 50
than you can shake a stick at - advantage or curse?
While learning to hover, the last thing a beginner wants is
a nervous twitchy handful, which can flip in its own
length. Similarly, during a tail-first snake with the blade
tips mere inches off the ground, a beginners soft
response will promptly bury it in terra firma!
Unlike a model airplane where you first learn with a gentle
high-wing trainer, then buy an intermediate trainer to learn some
tricks, before finally graduating to a hot low-wing model, with a
Pantera 50 you can have your cake, and eat it too.
Simply put, fine tuning your Pantera 50 for either extreme
(and everything in between) is like having three models in
one! Best of all, it's easy . . . we start with the set
up.

A well set-up and fine-tuned model lightens your work load
because it's easier to fly, which makes you look like a
better pilot!
Set-up and fine-tuning are a series of
interactive multi-step processes where adjustments are made,
then based on how the model performs in flight, you go back
and make adjustments. The first step in the process is
achieved on the workbench and deals with linkages and basic
radio settings. The second step is to make adjustments
based on empirical results, i.e. after you fly it. The third
and final step is fine tuning your model to really dial it in to
your tastes. Inevitably, there's some blending of these steps
as you go back and forth but ultimately you end up with a sweet
flying model where you mesh together in complete synchronicity to
become one. We'll begin with setup.
Setup - Rule of 90°
Setting up your model begins with ensuring the linkages are
perfectly balanced and the basic thrwos and directions are close
enough to permit you to fly the model. The first thing to
achieve is connecting the servos and setting the direction they
respont.
Adjustments -
Tuning
- Dampers - Soft vs. Hard
- Bell Ratio - Direct Input
- Hiller Ratio - Hiller Input
- Bell-Hiller Ratio - It's in the Mix
- Flybar Length - Long vs. Short
- Paddle Weight - Mellow or Aggressive
- Main Rotor Blades - Opening a Can of Worms
- Tail Rotor Blades - Stock Works Well
- Servos - Faster and Stronger vs. Your Wallet
Dampers - Soft vs. Hard: The hardness of
the dampers, which support the spindle shaft connecting the blade
grips, have a profound effect on the personality of your
model. The hardness is measured using a durometer-rating (the
higher the number, the harder the rubber). Personal
preference and the maneuvers you want to fly are factors to
consider in making a selection. For example, a soft and
mellow handling machine, like the soft plush ride of a
Cadillac, result from selecting the softest dampers.
Meanwhile, a harder damper is better for more aggressive flight for
the same reason the taunt suspension of a Ferrari is better
for getting around the track. One of the least expensive ways
to fine tune the handling of a Pantera 50 is via the
durometer rating of the dampers. There are three different
dampers available for the Pantera 50. Ranging from
the softest, the AUD0017-1, which are black in color, through the
AUD0017-2, which are translucent in color (these are the stock
dampers), through to the AUD0017-3, which are yellow. These
are the hardest dampers we offer.

- AUD0017 Dampers, the soft -1 are black,
the medium -2 are translucent, and the hard -3 are yellow.
For example, if your goal is to perform smooth and precise
aerobatics, i.e. F3C-style maneuvers, or if you're learing to fly
and want your model to be mellow in the hover, then our
softest 60-durometer AUD0017-1 dampers are a great choice.
Like a Cadillac, these soft 60-durometer dampers
are going to deliver a smooth and predictable ride (so to
speak). You'll get gentle, easy to fly, and very smooth
looking maneuvers because the softer damper has a little bit of
'give' to ease the transitions as you move the stick. The
softness hides pilot imperfections as the model tracks through the
sky making you look like a better pilot. Consequently, if you
admire an impossibly perfect hovering-M performed in a light
breeze, an incredible huge and round loop, or a roll,
which looks like it's on a string, odds are the pilot is
relying on a softer than stock dampers because it hide the
slight, almost imperceptible shaking in our fingers, which we
all have as we fly. By the way, the secret of sweet scale
maneuvers are also addressed with softer dampers. Hence, when
a customer expresses an interest in F3C-style maneuvers, installing
Pantera mechanics into a scale Jet Ranger fuselage, or in
improving their hovering skills, the AUD0017-1 Dampers are the ones
we recommend. For sport use, the AUD0017-2, the stock
dampers, are great. They're made of long wearing urethane,
feature an 80-durometer rating, and are a decent compromise between
easy to hover and crisp aerobatic maneuvers. However, for 3D
maneuvers like tick-tocks, especially close to the
ground, or a 300' tail slide into a gear ripping piro flip, you're
going to want something harder because they react more
quickly. Your best choice in this case are AUD0017-3
dampers, which are yellow. These dampers enable better
control during harder inputs (while still delivering decent
hovering characteristics) because of their 88-durometer
rating. There's no substitute for the control and quick
reaction these dampers deliver. Ultimately, whether your
tastes run to a softer or harder damper, we're pleased to
offer you choices. Audacity Models offer three
dampers to help you fine tune your model to suit. Mellow
handling call for softer dampers, and the hardest dampers are
reserved for the hardest maneuver, i.e. the harder you fly, the
harder the damper you'll require.
Sorry, but this page is . . .

 |
Our philosophy is to do one thing and to do it
well. For example, we offer just one nitro-powered heli, the
50-class Pantera 50. Why a 50-class model? Simple, in one great
performing compact package you get both the low repair costs of a
30-class bird, with the superb performance of a 90-class
helicopter. Ideal for entering the sport due to its easy
assembly, rugged construction, and gentle hovering nature, with a
few adjustments she can go from mild to wild. An optional BBC
upgrade conversion transforms her into a 91-powered beast without
breaking the bank! |
Pantera
50 in action . . . because seeing is believing!
Broadband or dial-up, we have you covered. Right-click and
select 'Save file as' to put the file on your own
computer!
| With an optional BBC kit, fitting a muscular big block engine
like a OS 61SX, 70SZ, or 91SZ as well as a YS61ST2, 80, or 91ST/SR
(they share mounting dimensions) into your Pantera 50
converts it into something of a beast. As you watch this video,
reflect how this is an otherwise stock Pantera fitted with
620mm blades (up to 640mm blades fit). Climbing
tick-tocks? Sure, no problem but be prepared to be the center
of attention and best of all, the reliability is unchanged, parts
costs remain low, and the giggle factor is a hoot! |
Broadband Connections |
Dial-up Connections |
| Ever wonder how well a completely stock 50-class heli can
handle when pushed? Will it fall apart in the air? Kyle
Stacy (he finished 14th at the 2007 XFC, so we're talking about
a seriously good pilot) thrashes his Pantera 50 in this
clip. What's more, Kyle's Pantera 50 is bone stock, i.e.
fitted with no options whatsoever! Yup, the stock
urethane dampers, stock paddles, etc. Powered by an OS Max 50SX
Hyper with a ProModeler ProMuffler and burning Power
Master fuel, it's got a Youngblood governor and Radix blades, and
is controlled by an inexpensive Spektrum DX7 radio with JR DS8311
servos. This is what the Pantera 50 is about, i.e. a
beater you can fly without fear - no bling required! |
Broadband Connections |
Dial-up Connections |
| Kyle Stacy turns it up a notch with a slightly modified
Pantera 50. Yes, he's spent big money on bling (yeah
right) by installing the optional 3D flybar ($9) and some harder
urethane dampers ($12) so if you think you needto spend big
money to really abuse a Pantera 50 with hard 3D, think
again! Yup, it's pretty sweet! |
Broadband Connections |
Dial-up Connections |
| What if you're a decenty good pilot in your own right, but you
didn't get invited to the XFC? I.e. does the Pantera 50
fly sweet for mere mortals? Dave Playfair flies this
Pantera 50, with Kyle Stacy's exact DX7 radio settings and
proves you don't have to spend big money to fly 3D - Dave's a
pretty good pilot also! Below are Kyle's settings . . . |
Broadband Connections |
Dial-up Connections |
| Kyle runs a
linear pitch curve with 0 degrees pitch at 1/2 stick in all modes
on his Spektrum DX7

- JR DS8311 servos - balls on servo arm are 20mm from
center
- Channels 2 & 4 reversed - Subtrims will vary of
course
- Aileron, Elevator, Rudder - Pitch travels are at
100%
- Gear (gyro) gain at 85%
- Aux 2 (Youngblood governor) 72%
- Swash Mix - Ail +55%, Ele +60, Pit +42%
|
Resort is had to ridicule only when reason is against
us.
- Thomas Jefferson
These words by our 3rd president have never been more true, and
if this product comparison, which I authored, is in any way
unreasoned, unfair, or untrue then show me, and I'll change
it! In the meantime, especially during economic times like
these, I believe folks simply need some facts to sink their teeth
into.
- John Beech, Owner, Audacity Models
Pantera 50 vs. T-Rex 600N
What can we say? Align's T-Rex 600N is one of the most popular
50-class model helicopters on the market. Deservedly so too,
because it offers a carbon fiber and aluminum design for a price no
American manufacturer can touch. It's made in China, so
consumers for whom a good deal is the most important consideration
love them, especially because they're well designed and
fly well too. Factor in the backing of a huge consumer
products division (they make vacuum cleaners), and this business
behemoth (though headquarterd in Taiwan) is far and away
the richest company in the model helicopter business. In
fact, they're so big they're vertically integrated too, which
means they even make digital servos cheaply, as well as engines,
governors, etc. In short, they make good products and
deserve their success, but the Pantera 50 is pretty good
too. In fact, the only place we feel they give us a whoopin'
is with their money . . . not their product. Simply put, they
kill us in two areas; paid pilots and field reps.
In short, they have the wherewithal to fork over piles of
money to the best Americans pilots. In fact, the Chinese
fly these guys all over the country, i.e. for them to both
demonstrate their product and say good things to promote it
(even though these guys are so good they could fly a bar stool
and make it look amazing). Anyway, it gets tougher because of
another business tactic their money can buy called a field
rep program. Here's how it works; they give a few local
hotshots some product at a discount, or free (in effect seeding
local flying fields with mouthpieces). Multiply that
times hundreds of club fields across America and it's no small
wonder it's one of the top selling 50-class model in America.
Frankly, either of these programs takes far deeper pockets
than we have so we'll readily concede we're the underdog, i.e.
David vs. Goliath. Nevertheless, on a feature-by-feature
basis, the Pantera 50 matches up pretty well.
Consider these factors if it's on your short list;
-
Weight - a Win At a
Price
-
Blocks and Bearings - Stiffer
and Stronger
-
Side Frames - No
Respect
-
Clutch - Bigger is
Better
-
Tail Case - Easy
Maintenance
-
3 mm vs. 4 mm Flybar - 85%
Stiffer
-
Air Filter Assembly - An
Ounce of Prevention
-
Dual-bearing vs.
Triple-bearing Tail Rotor Grips
-
Mixture Control
Servo
-
Cooling Fan - Sophisticated
Design
-
Engine Mount - An Ounce Well
Spent
-
Screw-on Hub vs. Dual
Tapered-collet System
-
Fuel Tank - Under
Pressure
-
Big Block Conversion - A Sick
Thing To Do
Weight - a Win At a Price: To
begin, the Pantera 50 is a little bit bigger model,
so when you throw them on the scale, she gonna be a few ounces
heavier (7 lbs 1 oz vs. 7 lbs 7 oz). On the flip side,
being physically larger makes her easier to see, which is
really important when you get the model a little too far away
and you're squinting to see it. Bigger may mean the
difference between orienting for the save vs. the
expensive ignomy of a crash. Nevertheless, in a horse
race where the scale is the judge, the T-Rex 600N wins by a
nose - but it comes at a price. The price is paid in
installments each time you crash because the cash registers sings
ka-ching in synchronicity with your deflating wallet because,
simply put, while it's lighter, it's also more fragile! Thus,
if 6 ounces (113 oz vs. 119 oz) means the world,
the Pantera 50 may not be for you, however, for
most folks 6 oz is much ado about nothing! Let me show
you what you get for your six ounces.
"My current 50 is a T-Rex
600N and I couldn't agree more with the comparison you've done
against the Pantera."
- Spencer Drossos, Calgary, Alberta
Blocks and Bearings - Stiffer and
Stronger: Compare the size of the bearing blocks,
which supports the main shaft. The one on the right is ours
and it's the very heart, the foundation if you will, of the
Pantera 50 because the 'entire' main rotor system rotates
within three of these bearings. Our bearing block is shorter,
thicker, and supports a bigger bearing so basically, it's stiffer,
doesn't flex, and can handle greater loads! Heck, our ball
bearings are 40% wider too, which means you don't have to stay in a
Holiday Inn Express to figure out which you
want! Nobody gives you anything in this business, so we earn
our reputation day-in and day-out for making a great flying
product, which is inexpensive, heavy duty, and fun! The
Pantera 50 withstands abuse better because we don't
believe in short cuts, but larger bearings weigh a tad more; are
they worth it to you?

- T-Rex 600N
bearing block vs. Pantera's short, stiff bearing block, which
features a 40% wider bearing
Side Frames - No Respect: The T-Rex
600N uses carbon fiber for their side frames. The stuff looks
sexy. We use fiber-reinforced engineering-plastic
instead. Not so sexy, in fact, we'll concede it's downright
homely. However, both work in the application and we feel the
Pantera 50 kicks T-Rex 600N butt - right in their
wheelhouse, especially amongst folks who value function above
all. When your model smacks terra firma at a
rate of speed such that it breaks the side frames, our
2-piece design, is both easier to repair and far less
expensive and fortunately, replacing them makes your model as good
as new! Consider these factors when selecting a side
frame design.
RF blanking is real and carbon fiber can blank
RF. Get the model too far away and you may crash just because
your system couldn't see the signal well enough for you to
control it. Sadly, the competition's models are usually
demonstrated by experts flying within feet of themselves so the
average Joe may blame himself for crashing (thinking it was
too far away for him to see) when in actuality RF blanking was to
blame.
Misalignment just means you don't have to be
an expert builder to get a Pantera 50 built, or repaired,
correctly because alignment is a non-issue. Why?
Because Pantera 50 side frames self-align and lock
together, which means alignment is automatic - no batteries
required!
Vibration Dampening is another thing to consider
with side frames. It's much harder to dampen vibrations with
a carbon fiber frame. This may not be a major issue for an
expert builder, or even a paid pilot who has a pit
bitch building and maintaining his models, but for the average
Joe it leads to more frequent servo failures, which are entirely
due to the generally unforgiving nature of the
material.
Cost is a no brainer. We didn't want folks to
say we're taking unfair advantage of the Chinese by
immediately letting you know their frames cost 400% more than ours,
so first we showed you 'why' our fiber-reinforced engineering
plastic beat the tar out of them, especially once you
consider factors like RF Blanking, Misalignment, and Vibration
Dampening. Once you factor in less than $30 a set, while
the 3-piece side frames of the T-Rex 600N cost north of $150, it's
game over . . . unless your money grows on trees!
Shiny carbon fiber weave makes some guys reflexively
reach for their wallets because it's so pretty it easy to overlook
the downsides of the material. Ultimately
the unassuming appearance of Pantera 50 fiber-reinforced
engineering plastic side frames makes them better where it counts,
i.e. during the day-in and day-out abuse metted out by
modelers. Also, don't forget, Pantera 50
side frames don't have RF blocking issues, they're easier to
assembly because they self-align, and they dampen vibration far
better resulting in a smoother model with less effort.
Here's the deal, if you value looks more than performance, or
if 150 bucks is chump-change for you, then we're probably
'not' making the right 50-class heli for you anyway. However,
if reflection and reason are part of your thrifty
and prudent approach to selecting the right 50-class model for
you, please read on.

- By shattering, these 3-piece T-Rex 600N carbon fiber frames
cost more than half of what an entire Pantera 50 costs!
Clutch - Bigger is Better: Here's
another area where the Pantera 50 distinguishes
itself as tough, i.e. that much tougher than the T-Rex
600N; our clutch can withstand more abuse because it's
bigger. To be blunt, we all know size matters and quite
often, bigger is indeed better. It's as true with a bigger
clutch as it is with bigger bearings! The Pantera 50
clutch, for example, is gi-normous, which allows it not just to
withstand the abuse delivered by a rank beginner, but also lets
it harness the nearly 4 ponies of a 91-class big block
engine (if the itch strikes you). When it comes
right down to it, a Pantera 50 is a choice about
practicality; think poodle versus pit bull and you begin to get the
idea. Frankly, we've always thought it kind of odd for folks
to blow money on a 50-class heli when the very purpose of this kind
of product is to be a daily 'beater', i.e. the machine you can
abuse, wipe down at the end of the day, and throw in the trunk
secure in the knowledge it'll be ready the next time with no
fuss, no muss, and virtually no bother - enough
said!

- T-Rex 600N
clutch on the left versus Pantera 50 clutch on the right,
wanna hazard a guess, which one's the pit bull?
Tail Case - Easy Maintenance: What
else makes a Pantera 50 tougher than the T-Rex 600N?
Well, when you compare the tail case of the popular Chinese
product, you can see obvious differences in heft. Not to rub
their noses in it (actually, yes, we are), but look how much more
heavy duty the Pantera 50 tail case moldings
are. Also note how much larger the bearings, which support
the tail output shaft are. Both machines feature a 5mm dia
tail output shaft, but our bearings are a lot bigger and
stronger. In the eyes of some, just the bearings serve as an
example of why our product withstands more abuse, but once you
eyeball the massive tail gear case, it's nearly game over because
in the real world, bumping the tail getting a model into and
out of the car is a fact of life, i.e. it happens and while nobody
wants to damage something whilst transporting their model, it
happens. But there's more because we have a
couple of design features playing a role as well. To wit,
it's one thing to claim our model is more durable than the
competiton, it's another to back it up with proof you don't have to
be an engineer to understand. Hence, note how much
further we space the bearings supporting the tail output
shaft, i.e. about twice as far apart! And there's no need for
us to throw a bunch of math at you to prove why spacing
the bearings further apart is better; instead we'll just
remind you how stable you feel when standing in a small boat
with your feet wider apart. Anyway, while larger bearings,
which are spaced further apart to better resist bending and
twisting, as well as the tail case itself being beefier and
more heavy duty are important, there's a really nifty feature
to eyeball. The Pantera 50 tail case design
features a removable side plate for easier replacement of the
output shaft . . . which plays into our theme of stronger,
easier to work on, equals better value, and smarter decision!
By the way, this brings up an important point; we believe the
fundamental building blocks of a successful business include
honesty, responsibility, and accountability. If this
Pantera 50 vs. T-Rex 600N product comparison is in any way
unfair, show us the error of our ways and we'll change
it!

- Stout tail case
+ larger bearings + wider spacing = the formula for a
long lasting heavy duty tail system!
3 mm vs. 4 mm Flybar - 85% Stiffer: The flybar
on the right is 4 mm in OD and compared to the 3 mm unit for the
T-Rex 600N, it's not only 85% stiffer, but delivers lightning quick
cyclic response plus it allows you to fit any of the available
4 mm mount flybar paddles (what 60-90 size helis use).
Frankly, flybar paddles are kind of like pickin' a
toothbrush, i.e. a highly personal decision, which
is subject to lots of argument because it's a matter of
taste. Where there's no argument though is how more choices
are better! Anyway, this massive unit costs us an ounce, but
we felt it worth the trade off because of the
performance.

- 85% stiffer for quick response, the 4
mm diameter flybar is more commonly used on the big iron.
Air Filter Assembly
- An Ounce of Prevention:
The Pantera 50 can be fitted with an air
filter. Leave it off and you save another ounce.
Interestingly, using it gives you more horsepower because it draws
cooler air from beneath the canopy versus air heated by the
engine. Cooler air is more dense and thus, can accept more
fuel, resulting in more horsepower! Moreover, while the
air filter is great protection during a chicken dance, it really
earns its keep in protecting the engine from the day-in and day-out
injestion of highly abrasive clutch
liner-material particles (just wipe your finger on the inside
of the cooling shroud of your model the next time the engine's
out), which along with airborn dust injested during the hover, is
the leading cause of engine wear. This begs the questions,
would you leave the air filter off to save an ounce, and is as
ounce worth a pound of cure for your wallet, e.g. to save
your engine?

- The snorkel draws cooler air into
the engine, but following a chicken dance, the filter's like money
in the bank!
Dual-bearing vs. Triple-bearing Tail Rotor
Grips: Let's eyeball the tail rotor blade grips
because the T-Rex 600N uses a dual-bearing combo in the tail
grip (single ball bearing and single thrust bearing).
The Pantera 50 features a triple bearing setup
- just like a main rotor blade grip! In short, you
get two ball bearings plus a thrust bearing in each tail rotor grip
(what you fnid on top of the range 90-class
machines). The resulting silky smooth triple-bearing setup
really delivers the goods!

- The
Pantera's triple-bearing tail grips are silky smooth under
load!
Mixture Control Servo: Attention to
details, like how you can add a mixture control servo to your
Pantera 50 side frames, is important. Use a spare channel
on your transmitter, or plug it into a GV-1 or MultiGov Pro
governor, thereby letting it control the mixture for you
automatically. We've all been there, your engine starts to
run lean in flight and you have to land to adjust it. At
last, now you can do it on the fly . . . it's about time,
eh?

- Control the needle valve with a
mixture servo, and like all Pantera 50 links, neutral
makes a 90° angle!
Cooling Fan - Sophisticated Design: What
about things not so easily seen? For example, look at these cooling
fans, which in both cases are completely hidden by the fan shroud
when installed. Even here there are details worth noting. Frankly,
it may seem inconsequential, but we think it's quite telling how
nearly everybody rushes out to buy an expensive aftermarket cooling
fan for the T-Rex 600N (often before they've even flown the model)
while nobody has ever felt a need to purchase an aftermarket
cooling fan for a Pantera . . . even when we're
cooling a 91-class engine! The fact is we expended a great deal of
effort on making certain the high efficiency Pantera 50
cooling fan would be more than up to the task of cooling. If you're
detail oriented you've already noticed how we designed airfoil
shaped blades (for greater efficiency) while the T-Rex 600N unit
uses ordinary flat plate blades instead. It's because we
envisioned our fan doing super heavy duty work in the hands of
expert pilots. Sure it would have been cheaper to mold a
flat-blade unit, but we didn't think that was the right way to go
about it. And by the way, the Pantera cooling fan has been
tested hard too, in the environment of the desert southwest, where
it's routine to see temperatures of 106°F, and higher. No
short cuts!

- Versus the
T-Rex 600N fan (left), notice the efficient, airfoiled-blades of
the Pantera 50 cooling fan.
Engine Mount - An Ounce Well Spent:
What about complexity? Is there ever a case where 2 parts are
better than 1? Sometimes an argument can indeed be made
in favor of more parts, but here's an instance where we believe
more parts results in something less. You see, in an endeavor
to keep their product light, we think our worthy competitor
outsmarted themselves, i.e. went overboard. They elected to
use a 2-piece engine mount. However, by in effect using the
engine as a stressed member, they put it a use not conceived of by
the engine designers! Not only does proper alignment play a
huge factor in gear meash, but as a consequence, in a crash,
the engine itself may break more easily (take a closer look at
a previous crashed-frame photo where not just the frame
cracked like an egg, but the engine's crankcase broke as well -
ouch). Moreover, an added benfit of the
robust Pantera 50 engine mount are the five integral
cooling fins (along the bottom), which aid in thermodynamic
transfer (i.e. moving heat away from the engine via the crankcase
itself). The Pantera 50 engine mount is not just
stronger, but doesn't overstress the engine, and it plays a role in
cooling! Ours weighs about an ounce more; is this an
ounce well spent?
- The
2-piece T-Rex 600N engine mount saves weight at the expense of
strength.
Screw-on Hub vs. Dual
Tapered-collet System: Another example where we
believe the Pantera 50 trumps the T-Rex 600N is a
result of how the clutch/fan hub mounts to the engine.
Basically, theirs screws onto the crankshaft, which is cheap to
manufacture. However, it leaves you at the mercy of
whatever runout you get because there's no adjustment.
This dual tapered-collet system is exactly how the fan/clutch
hub mounts on high dollar 91-class helis from the likes of
Miniature and Bergen. While we build the Pantera 50
for the most ferociously competitive segment of the helicopter
market . . . beancounters don't make our engineering
decisions!
- Dual
tapered-collets permit runout adjustment, which is exactly how the
big iron models do it!
Fuel Tank - Under
Pressure: Believe it or not, sometimes there's an
advantage to making things more complicated. Case in point is our
fuel tank, which has stiffening ribs molded into the sides to
better withstand the pressures generated by YS-brand engines. Note,
also, the bubble trap (where the vent line connects to the fuel
tank). Our making the mold more complex (same number of parts, just
more trouble and expense for us), results in tangible
advantages for you. The Pantera 50 fuel tank
is stronger because of the molded stiffening ribs, and vents
air bubbles more easily, which is a win-win!
- Molded
stiffening ribs and a nifty vent bump are features of the Pantera
50 fuel tank.
Big Block Conversion - A Sick Thing To
Do: Short and sweet, and frankly, it's almost
not fair. The Pantera 50 has a huge power advantage
over the T-Rex 600N because we figured out how to shoehorn a
91-class engine into her (and make it live). We've seen
home-brew big blocks in T-Rex 600N models but they just don't last
long before it starts falling apart. The Pantera can
handle it because we made the foundation strong enough, i.e. bigger
clutch, bigger bearings, etc., etc., etc. It's subtle when
mounted, which means this wicked performer might go unnoticed -
until you pour the coals to her - then you'll be the center of
attention! The big block is also part of the
equation in the flat lands because 4 ponies is really
gonzo power n a 50, i.e. mucho overkill, but as they
say . . . power corrupts!

- That OS91SX looks rather nice
nestled there . . . kind of like we planned it, eh?
Output Shaft Stabilizers - Reduce Main Rotor Disk
Feedback: Available servo output shaft stabilizers
make the Pantera 50 more precise because the
considerable feedback from the rotor disk actually forces the
swashplate servos to give slightly on their rubber mounting
grommets. The flexxing servo mounts acts just like a sloppy
linkage and thus, you get less consistent maneuvers. The
output shaft stabilizers kit for the Pantera 50 (the
bridge over the top of the three swashplate servos) gives you a far
tighter, and immensely more controlled response,
something even average pilots can appreciate. They're
available with a screw-in thread for plastic output gear servos
like the Futaba S9252, as well as machine threads for metal output
gears in both 2.5mm and 3.0 mm thread.

- Our CNC-machined output
shaft replaces the stock screw securing the servo arm, and
rides in a bearing.
Conclusion: In the area of durability,
the Pantera 50 earns her reputation for being able to
handle abuse. Sure she's six ounces heavier than the Chinese
model, but three of those ounces are a direct result of
decisions we made with respect to adding an air filter, a
4mm flybar, and the solid 1-piece engine mount.
However, bearings to downsize the flybar are available, you
can leave off the air filter, and if you really want that
ounce, you can hack the engine mount to reduce weight. The
other few ounces are in the beefy tail case, triple-bearing
tail grips, larger main shaft bearings, larger clutch, etc.
However, once you factor in nifty things like the the mixture servo
option, as well as the output shaft stabilizers for the swashplate
servos, the superior fan design, the fact the fuel tank easily
handles the pressure from YS engines, plus our triple-bearings for
the tail rotor grips, then yit suddenly hits you . . .we're
onto something. After all, we may be a modest
Mom-and-Pop operation from the deep South, but we're not
stupid. In fact, we confidently put our American
jobs on the line with the Pantera 50 because we're
certain she measures up not just to the best the world has to
offer, but to your expectations! When there
are enough folks like you, i.e. guys who do their
own thinking (instead of getting what everybody else has), and who
do their own homework, we can make a living - even against the
Chinese!
Ultimately, our philosphy is simple.
50-class helia are beaters in the real world. E.g. where
nobody pays you to fly, and you reach into your own pocket to make
repairs! In fact, we kind of wonder why anybody would want to
complicate their life by flying a carbon and aluminum 50 since
it defeats the very purpose of the 50-class, i.e. as
an inexpensive, easy to maintain, and fun to fly model.
What's nice about the Pantera 50 is you can fly like
you stole her and be secure in the knowedge a momentary brain fade
isn't a gonna break the bank! Here's what a
customer recently had to say . . .
"Just wanted to let you know how
happy I am with my Pantera 50. When I purchased it I was looking
for something to replace my Trex 600N. While they fly good I
just got tired of the parts and quality issues. I was especially
looking for a "solid" dependable helicopter and I am very impressed
with the tough construction because I just plowed the Pantera
in doing inverted hurricanes today. It hit hard. The guys at the
field expected to see a shattered heli when we got out to it. I'm
happy to report no frame or head damage. Boom, skids, blades, a few
lost links but that's it. Any other heli I own would have been
totalled. Gotta love this super plastic!"
- David Wilson, Nashville, TN
Meanwhile, unless you've been living under a rock, you
know the economy is in a tough place. You can't eat
helicopters so it's not exactly an essential purchase.
Fortunately, as things for men to waste money on go, model
helicopters don't hold a torch to the classics, i.e. faster horses,
older whiskey, and younger women, which is probably why your better
half doesn't kick up too much of a fuss about your helis! In
offering the Pantera 50 as a durable,
economical, high performance model, which is perfect for the
role of everyday beater, we do it in the knowledge she
represents a great value. This is especially true
since you can just about buy two Pantera 50 models for the
the price of one T-Rex 600N.
Thank you for your consideration.
Every man has a right to be wrong in his opinions. But no man
has a right to be wrong about his facts. If you get all the facts,
your judgment can be right. If you don't get all the facts, it
can't be right".
- Bernard Baruch
Resort is had to ridicule only when reason is against
us.
- Thomas Jefferson
These words by our 3rd president have never been more true, and
if this product comparison, which I authored, is in any way
unreasoned, unfair, or untrue then show me, and I'll change
it! In the meantime, especially during economic times like
these, I believe folks simply need some facts to sink their teeth
into.
- John Beech, Owner, Audacity Models
Pantera 50 vs. Sceadu 50 Evolution (Evo 50)
The venerable Hirobo of Japan created the market, back in 1985,
for fiber reinforced engineering plastic model
helicopters. Prior to their Shuttle, dominant designs
featured flat aluminum side frames attached to aluminum
blocks, which is pretty much how the present day T-Rex
600N uses flat carbon fiber side frames attached to aluminum
blocks proving the more things change, the more they stay the
same! Anyway, in the still ongoing battle between flat-plate
frames vs. engineering-plastic, and figuring if it's not broke
don't fix it, Hirobo's Evo 50 continues to use this incredible
material (so does the Pantera 50). However, while
the Evo 50 is a well regarded model possesed of good flying
characteristics complete with a loyal following, it's showing its
age, which makes it easy prey for the Pantera
50. Consider these factors if the Evo 50 is on your
short list;
Differential Throw vs. Rule of 90°
12 versus 3 Or Why 400% More Is Less
Phillips-head Screws vs. Allen-head Bolts
Molded Seats vs. Removeable Bearing Blocks
40% Wider bearings
Screw-on Hub vs. Dual Tapered-collet System
Heavy Duty Main Rotor Grips
Dual-bearing vs. Triple-bearing Tail Rotor Grips
Mixture Control Servo
Extended Cooling Shroud
Air Filter Assembly and the Chicken Dance
3 mm vs. 4 mm Flybar
Big Block Conversion - The Center of Attention
Output Shaft Stabilizers - Reduce Main Rotor Disk Feedback
Boom Mounted Tail Rotor Servo - Oil, Oil, Everywhere
Customer Experience - No Dog In The Hunt
Pricing - It's a Horse Race
Replacement Parts - Comparable
Differential Throw vs. Rule of 90°: At
their heart, helicopters are controlled through their swashplates,
and this involves linkages . . . in some helicopters, a butt load
of linkages! While we can't do too much (economically)
with those north of the swashplate (flybarless gyro systems cost a
pretty penney), we can do something with those south of the
swashplate, i.e. those connecting it to the servos.
State-of-the-art designs feature linkages, which always form a
perfect 90° angle at the neutral position because it ensures
symmetrical control, i.e. equal throw in each direction.
By the way, this is called the Rule of 90°. Sometimes, a
designer can't easily make the linkage rod follow the rule of 90°
resulting in the model handling differently, i.e. to the right vs.
left. This means constantly compensating for
asymmetry-of-control, which even average pilots can feel.
The swashplate converts linear motion from the servo-pushrods
into 'rotating' linear-motion so the linkages north of the
swashplate can rotate with the rotor head, i.e. it's the interface
for pushrod motion. Moreover, the swashplate controls the
three-axis of motion; i.e. fore-aft, side-to-side, plus
collective pitch, so if any of these linkages violates the Rule of
90° it's akin to building a house on a crooked foundation. In
the photo below, note how Pantera 50 control linkages form
perfect 90° angles, which keeps the feel balanced and symmetrical,
e.g. to prevent uncoordinated control-couplings in your
maneuevers. We think this is a big deal; end of
story.

- Note acute angle at neutral in Evo's
roll-linkage while the Pantera linkages all form 90° angles at
neutral.
12 versus 3, Or Why 400% More Is Less:
Perhaps nowhere is the elegant design of the Pantera 50
more visible than in the simplicity of the direct servo control
system. An Evo 50 requires 12 individual pushrod
linkages just to connect the servos to the swashplate while
the Pantera just uses 3 pushrod linkages. Hand-in-hand with
employing a dozen linkages are the many, many
intermediate levers, bellcranks, bushings, bearings, and
screws, which over time wear and result in control slop.
Worse, because the Evo's servos are mounted in a separate
sub-frame, which readily breaks in a crash, Evo owners
'dread' the time it takes to R&R (remove and replace) all these
servos and linkages. Moreover, because the servos and
linkages are mounted in the vulnerable nose area of the model, i.e
often the first to contact terra firma in a crash,
it's easy for linkages to get lost in a crash, which sucks.
However, in fairness to Hirobo, they do offer the Evo 50 in an SWM
version, which 'features' 9 linkages instead of 12. It's
an improvement, to be sure, because you only build 300% more
linkages versus 400% more linkages - hmmm.

- With 12 inkages vs. 3 for
the Pantera, the Evo 50 requires 400% more linkages to
control the swash!
Phillips-head Screws vs. Allen-head
Bolts: If you prefer cheesy
Phillips-head screws for assembling your model, you'll love the Evo
50 because it's loaded with them! The Pantera
50, on the other hand, features Allen-head bolts. What's
more, unlike the Evo 50 which uses el cheapo nuts,
each requiring thread locker, the Pantera 50 features
nylon-locking nuts instead. Granted, it's one of those little
things, but we find paying attention to the details wins
customers. Moreover, if we don't toot our horn, they
sure won't tell you how Allen-head hardware is the only way to
go!

- Phillips-head screws are used on
the Evo 50 instead of Allen-head bolts - yuk!
Molded Seats vs. Removeable Bearing
Blocks: Just like the Pantera 50, the Evo
50 has three bearings supporting the main shaft.
However, only their lower bearing runs in a removable bearing
block. The other two bearings ride in bearing-seats molded
directly into the side frame, which means if a bearing seat is
damaged in a crash, or gets sloppy from wear, you have to
replace the Evo 50 side frames. Worse, unless your
time is worth nothing, it's a tedious job because you basically
have to completely disassemble everything! Conversely,
the Pantera 50 has individual bearing blocks for the main
shaft (and tail pinion shaft). You benefit because it's
afrom the relatively quick and painless procedure (and you
save money since frames are pricey). Of course, if you have a
money tree in your backyard, you only save time.

- Efficient design means four of five
Pantera 50 bearing blocks use the same part
number!
40% Wider bearings: Moreover, Pantera
50 main shaft bearings are 40% wider than those in the
Evo 50. The wider bearings withstand greater flying loads as
well as the everyday knocks imparted by beginners. We
don't believe in short cuts, and there are no two ways about
it, wider bearings result in a more heavy duty model.
While most of us are ordinary pilots, it doesn't mean we'll be
ordinary forever, and the Pantera 50 is ready for you when
you take it to the next level.

- You don't have to be a rocket scientist
to see the benefit of 40% wider bearings.
Screw-on Hub vs. Dual Tapered-collet System:
Another example where we believe the Pantera
50 trumps the Evo 50 comes from how the clutch/fan hub
mounts to the engine. Basically, theirs screws onto the
crankshaft, which is cheap to manufacture. However, it leaves
you at the mercy of whatever runout you get because there's no
adjustment. Anyway, have you ever watched tires for your car
being balanced? The wheel assembly is secured between two
tapered-collets so it runs true when they spin the assembly up to
high RPMs. This dual tapered-collet system is exactly
how the fan/clutch hub mounts on the Pantera 50 (and
also how it's done on high dollar 91-class helis from the likes of
Miniature and Bergen). While we build the Pantera 50
for the most ferociously competitive segment of the helicopter
market . . . beancounters don't make our engineering decisions!

- Evo 50 screw-on hub vs. Pantera
50 dual tapered-collet mount, where less runout means less
vibration!
Heavy Duty Main Rotor Grips: In the
South, heavy duty is more than a catch phrase, so when we say the
Pantera 50 is a heavy duty machine, we're not kiddin' with
you. For rotor blades, where the rubber meets the road
is the sky. Securing the blades to your model are the
critical main rotor blade grips. However, unlike ordinary
50-class helis designed around 600 mm rotor blades, we designed the
Pantera 50 with 620 mm rotor blades in mind (and 640
mm blades will fit without modification).
Consequently, the grips are big enough to handle greater
loads - no upgrade required. If your engine has the
cojones, the Pantera 50 main rotor blade grips
can handle it because they're huge by comparison!

- The heavy duty Pantera 50 main
rotor blade grips are . . . mo-betta!
Dual-bearing vs. Triple-bearing Tail Rotor
Grips: Let's eyeball the tail rotor blade grips
because the Evo 50 uses 2-piece tail rotor blade grips while the
Pantera 50 features more rigid, 1-piece tail rotor blade
grips. Ours more closely resemble miniature main rotor
blade grips and unlike the single ball/thrust
dual-bearing combo used in the Evo
50, the Pantera 50 features a triple bearing
setup - just like a main rotor blade grip! In
short, you get two ball bearings plus a thrust bearing in each
tail rotor grip (also like those found on top of the range
90-class machines). Add in a steel tail rotor hub (standard
equipment) and the resulting silky smooth triple-bearing setup
really delivers the goods!

- Evo's dual-bearing 2-piece
grips don't cut it vs. Pantera's triple-bearing equipped
hefty 1-piece grips!
Mixture Control Servo: Attention to
details, like how you can add a mixture control servo to your
Pantera 50 side frames, is important. This is "no can do"
territory for an Evo 50 because there's no place to mount another
servo - and wait until you see where they mount the tail rotor
servo! However, what's really nifty about a mixture servo is
how you can control the needle valve with a spare channel on your
transmitter, or plug it into a GV-1 or MultiGov Pro governor,
thereby letting it control the mixture for you automatically.
We've all been there, your engine starts to run lean in flight and
you have to land to adjust it - how lame is that? At
last, now you can do it on the fly!

- Control the needle valve with a mixture
servo, and like all Pantera 50 links, neutral makes a
90° angle!
Extended Cooling Shroud: Guess
what? There's a spot for a retract servo as well as a
mixture servo, which you'll appreciate if you like scale
models! In fact, the Pantera 50 is so versatile you
can mount as many as 8 servos directly into the side frames while
the Evo 50 can only accept 4 servos. And while you're
admiring that nifty low-profile retract-servo just in front of the
Pantera 50 side frames in the picture below, compare how
much more of the engine's head is covered by the respective cooling
shrouds. When you fly hard, the engine is delivering more
power, so it gets hotter and as a consequence, you had better be
able to control engine temperatures. With the Pantera
50, our extending the cooling shroud means keeping
more cooling air from spilling out before it's done all
it can, which is important when you're hammering on it!

- Paying attention to the details results
in a longer shroud, so the Pantera 50 has better
cooling, no question!
Air Filter Assembly and the Chicken
Dance: Why did the chicken cross the road?
While they may not have the answer to this question, country folks
do know what happens to chickens, which are slow crossing the
road. I.e. it flops and thrashes whilst dying, which is
an ugly mental picture, but it closely resembles a helicopter crash
when the engine keeps on running (yes, it happens enough to justify
a name). So now you know the origin of the very
apt phrase! Anyway, because of the danger of getting
near it, the model just keeps flopping and thrashing about
until it runs out of fuel. In the process, it digs a
hole in the groud, raises an impressive cloud of
dust, and frequently results in far more damage than the crash
itself. Sadly, while it can be costly to repair the
model, what sucks (literally) is the engine just about always gets
damaged as well. Sometimes the damage is bad, sometimes it's
almost unnoticeable, i.e. reduced horsepower from the
resulting lower compression due to increased scratches in
the piston/sleeve.
The Pantera 50 is unique amongt
nitro-powered helis for offering an available air filter
option. It sits on top of the snorkel leading to the
carburetor and instead of reducing power, actually adds some
because cooler air is more dense and thus, can accept more
fuel resulting in more horsepower! Moreover, while the
air filter is great protection during a chicken dance, it really
earns its keep in protecting the engine from the day-in and day-out
injestion of highly abrasive clutch liner
material particles (just wipe your finger on the inside of the
cooling shroud of your model the next time the engine's out -
yuk). That plus airborn dust injested during the hover, are
the leading causes of engine wear.

- The snorkel draws cooler air into
the engine, but following a chicken dance, the filter's like money
in the bank!
4 mm Flybar: As compared to the Evo
50, the Pantera 50 is designed around a 4mm
diameter flybar. There's a tremendous benefit from
upgrading vs. a 3mm flybar due to the 85% increase in
rigidity. This results in a model that rolls quicker,
generally responds better, and accepts the wide variety of
aftermarket 4mm paddles available for 90-size birds. Plus, and
granted this is a stretch, but the 4mm flybar doesn't get tweaked
as easily as the whimpy 3mm flybar when you bump your model getting
it in and out of the car! Frankly, with a 4 mm flybar, the
little rascal rolls quicker than a lot of 90-class birds!
Anyway, the Germans say the Devil is in the details. We
figure by paying close attention to the little things, the big
picture will takes care of itself, and an 85% stiffer flybar is an
important detail.

- The Pantera 50 features a
4 mm flybar, which is 85% stiffer than the Evo's 3 mm
flybar.
Big Block Conversion - The Center of
Attention: There's more to making the Pantera
50 the best 50-class heli on the planet than just better
features. A substantial number of our customers live at high
altitudes, like Denver, CO. Consequently, we designed the
Pantera 50 to accept up to a 91-class engine - bigger
bearings, clutch, etc. remember? Our plan is deceptively
simple. To overcome the density-altitude issue, we just threw
more horsepower at the problem because an engine at 6000'
makes about 3/4 the power compared to sea level and a good 91 makes
nearly 4 ponies, or nearly twice as many as any 50 - yeehaw!
Anyway, some of us are flying these monsters in the flat
lands, where the gonzo power is mucho overkill,
but as they say . . . power corrupts. Warning, sick
amounts of horsepower lead to spontaneous outbreaks of the
giggles.
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- Some say shoehorning a YS91SR
into a Pantera 50 is sick - we couldn't agree
more!
Output Shaft Stabilizers - Reduce Main Rotor Disk
Feedback: Available servo output shaft stabilizers
make the Pantera 50 more precise than competitive
CCPM machines like the Evo 50 SWM because they eliminate
side-to-side servo-mount flex. In short, they keep the
servos from moving back-and-forth on their rubber grommets and
thus, eliminate this form of slop, which results in a more precise
flying machine. Here's why; during maneuvers, the consderable
feedback from the rotor disk may actually force the swashplate
servos to give slightly on their rubber mounting grommets. The flex
in the servo mount acts just like a sloppy linkage and thus,
results in less consistent maneuvers. You'll also find output
shaft stabilizers like these for the Pantera 50 on top of
the range 90-class products. These output shaft stabilizers
kits for the Pantera 50 (the bridge over the top of the
three swashplate servos) gives you a far tighter, and immensely
more controlled response, which means even average pilots can
appreciate the difference. We have them available with a
screw-in thread for plastic output gear servos like the Futaba
S9252, as well as machine threads for metal output gears in both
2.5mm and 3.0 mm thread.

- Our CNC-machined output
shaft replaces the stock screw securing the servo arm, and
rides in a bearing.
Boom Mounted Tail Rotor Servo - Oil, Oil,
Everywhere: Ask any experienced Evo 50 owner
about the tail rotor servo being mounted on the tail boom
and they'll mention it gettting covered in oil from
the engine's exhaust. Frankly, it's not just a pain in
the rear to keep the thing clean, but woe unto you if the tail
rotor servo either isn't sealed with o-rings, or has a damaged
o-ring, thereby allowing oil to get inside anyway! While the
Evo 50 uses a tail boom-mount for the servo, the Pantera
50 gives you two choices of aft mounting locations, either on
the left or the right, and both are completely within
the protected confines of the frame itself.

- Boom mounting exposes the Evo 50 tail
rotor servo to exhaust oil versus two protected mounts!
Customer Experience: Look folks, don't
get us wrong, there's a lot to like about an Evo 50; it's quite a
decent model. However, the above factors, which result in
the Pantera 50 having significantly better value, are
entirely due to her substantial improvements. Here's
what a customer experienced with both models, i.e. somebody
who doesn't have a dog in the hunt, has to say about his
Pantera 50 . . .
"I can give you an opinion on
the Evo 50 vs. the Pantera 50. I've flown Evos for a few years, and
up until the Pantera came out, it was my favorite 50. They fly very
similarly, but the Pantera is just a little bit better in the air.
It has that same mellow hover that an Evo has, very similar to a 90
sized heli, but the cyclics are very, very fast, much faster than
the Evo, even faster than the Fury I used to fly. Other than that,
I find it flies very similarly to the Evo, has good hang time at
the end of autos, tracks very well in fast forward flight with no
pitchiness, and the head is harder to bog than the Evo. Dunno why,
but the Pantera makes me look like a better pilot than the
Evo. Parts cost are pretty much a wash (I've crashed both
helis multiple times), and the support behind both are fantastic.
Both have their strengths and weaknesses, but all in all, you can
tell that the Pantera is a newer design that has learned some new
tricks over the other 50s out there."
- Nick Crego, Ankeny, IA

- Ankeny, IA's Nick Crego kneeling next
to his Pantera 50
Pricing: The Sceadu Evo 50 often sells
for a tad less than the Pantera 50, so if 20 bucks is a
make or break proposition, we understand (but urge you to
reconsider).
Replacement Parts Costs: Moreover, we
match up head-to-head pretty well with respect to replacement parts
pricing (some say better), because we're both making very similar
size products. As you would expect, they win some and we win
some. That said, consider this when you compare the
price of something, like side frames. Don't forget to add in
for the proclivity of the Evo's radio tray to break in a
crash. While you're at it, factor in the greater risk to
your servos and gyro due to the vulnerable mounting location in the
Evo's nose section, which often takes the brunt of impact - can we
say big money?
Clutch w/pinion 412-118 $50.41 VS. Clutch w/pinion AUD0026-2
$24.99
Clutch Shoe w/shaft 412-119 $38.72 VS. Cutch w/one-way AUD0038
$24.99
Flybwheel 50 412-122 $32.65 VS. Clutch Hub AUD0037-2 $31.99
Fuel Tank 480cc 412-201 $14.23 VS. Fuel Tank 500cc AUD0028-2
$13.99
Main Frame 412-218 $24.20 VS. Main Frame AUD0029-2 $29.99
Linkage set 412-223 $14.96 VS. Linkage Set AUD0025L-2 $7.99
Tail Case 412-236 $10.58 VS. Tail Case AUD0041 $12.99
Main DTDS Gear 1 412-169 $30.80 VS. Main Gear 1 AUD0031-1
$22.99
Main DTDS Gear 2 412-170 $26.40 VS. Main Gear 2 AUD0031-2
$17.99
Counter Gear 412-138 $22.70 VS. Counter Gear AUD1011-2 $14.99
Fin Set 412-154 $10.12 VS. Fin Set AUD0044 $8.99
Tail Pitch Plate Set 412-146 $23.50 VS. Slide Ring Assm AUD0009
$19.99
Tail Shaft 414-143 $9.68 VS. Tail Output Shaft AUD1004 $6.99
Tail Pulley w/shaft 412-145 $15.66 VS. Pulley w/shaft AUD0011K
$15.99
Tail Pulley 412-139 $7.57 VS. Tail Pulley AUD0011 $11.99
Tail Boom 412-140 $10.13 VS. Tail Boom AUD1518 $9.99
Tail Housing 402-597 $10.47 VS. Tail Rotor Hub AUD0020-2
$9.99
Tail Pitch Lever 412-147 $10.12 VS. Tail Pitch Lever AUD0010
$3.99
Engine Mount 50 412-124 $35.28 VS. Engine Mount 50 AUD0034
$15.99
Wood Blades 412-109 $33.92 VS. Wood Blades AUD1519 $29.99
Seesaw 412-106 $6.51 VS. Seesaw AUD0048-2 $14.99
Center Hub 412-105 $15.66 VS. Center Hub AUD0005 $13.99
Yoke 412-101 $7.83 VS. Main Rotor Hub AUD0023 $8.99
Blade Axel 412-102 $5.19 VS. Feathering Spindle AUD0016-2
$8.99
Swashplate 412-001 $56.70 VS. Swashplate AUD0039 $39.99
Decal Sheet 412-229 $14.96 VS. Decal Sheet AUD0049-2 $9.99
Sceadu Manual 412-227 $18.48 VS. Pantera
Manual AUD0050-2 $4.99
Main blade grips 412-103 $11.48 VS. Main Blade Grips AUD0046-2
$11.99
Mixing arms 412-107 $7.83 VS. Seesaw Arms AUD0055-2 $9.99
Stabilizer Control Arm 412-108 $9.15 VS. Control Lever AUD0024-2
$13.49
Washout arms 412-111 $6.51 VS. Washout Arms AUD1015-2 $8.99
Radius Arms 412-112 $2.55 VS. Washout Link AUD1001 $2.49
6mm Start Adapter 412-120 $6.51 VS. 6mm Start Adapter AUD0001
$7.99
Tail Rotor Pushrod 412-143 $6.51 VS. Tail Rotor Pushrod AUD1521-2
$5.99
Tail Housing Set 412-148 $44.12 VS. Tail Grip Assy AUD0042-2K
$39.99
Tail Blade Grips 412-149 $6.51 VS. Tail Blade Grips AUD0042-2
$7.99
Tail Boom Brace 412-151 $11.35 VS. Tail Boom Support AUD1520
$16.99
Windshield 412-153 $18.30 VS. Windshield AUD1017-2 $14.99
Cabin (canopy) 412-152 $36.52 VS. Canopy AUD1016-2 $24.99
Canopy Mounts 412-166 $5.50 VS. Canopy Mounts AUD0019 $3.99
Fuel Tank Cushion 412-200 $4.32 VS. Fuel Tank Mounts AUD0053-2
$7.99
Cast Muffler 412-202 $22.00 VS. .50 2-piece Muffler AUD0051
$19.99
Skid Foot 403-254 $11.79 VS. Landing Gear Struts AUD0033-2
$11.99
Stabilizer 4mm Freya 414-306 $10.12 VS. Flybar 4mm AUD0015-2
$8.99
Conclusion: Folks, the Evo 50 flies well,
no question, but then again, the Pantera 50 also
flies well. The Pantera 50 is even a few ounces
lighter than an Evo 50, though that really doesn't matter because
while a few pilots claim to be able to tell the difference, by and
large we just think they're full of themselves. Furthermore,
both models are made of fiber-reinforced engineering-plastic, which
is both tough, and easy to accurately assembly or repair.
However, the state-of-the-art Pantera 50 trumps the
Evo 50 because of its newer design, which bring some downright
nifty features to the game, i.e. a far lower linkage
count, Allen-head bolts, bigger bearings, removeable
bearing blocks, dual tapered-collet fan hub mount, heavy duty main
rotor blade grips, triple-bearing tail and beefy 1-piece tail
rotor grips, mixture-control servo-mount, extended cooling fan
shroud, air filter assembly, 4 mm flybar, big block
conversion, output shaft stabilizers, two places to mount the tail
rotor where it doesn't get covered in so much oil, plus
a partridge in a pear tree.
OK, we're kidding, there's nither a partridge or pear tree
involved! Meanwhile, maybe you don't give a hoot about better
features; after all, some people still buy Evos.
Nevertheless, one fact is indisputable; the Pantera
50 is quicker to build, maintain, and repair, which together
may be the most important factor of all because the one
thing even Bill Gates can't buy is . . . more time! Anyway,
along the way we've also joked about money growing on trees,
but we know it really doesn't, which is especially true during
difficult economic times. Consequently, whlile getting a
tough, heavy duty, 50-class heli is a smart, reasoned, and
prudent choice, it helps the Pantera 50 is also one heck
of compact and powerful package, which is both convenient, as
well as economical to own and operate. Add to that, she's
loads of fun! Finally, we're pretty confident the
Pantera 50 is the best 50-class helicopter your money can
buy.
We thank you for your consideration.
"Every
man has a right to be wrong in his opinions. But no man has a right
to be wrong about his facts. If you get all the facts, your
judgment can be right. If you don't get all the facts, it can't be
right"
- Bernard
Baruch
The reason you get conflicting opinions to a simple question
like, "What's the best 50-class model?" is because
opinions are like bellybuttons, we all have them! Educate
yourself thoroughly about the subject before asking
the advice of reputed experts because otherwise, you can't evaluate
how their opnions relate to your values.
- John Beech, Owner, Audacity Models
Pantera 50 vs. Raptor 50
Obviously I have a dog in this hunt, so to judge for
yourself whether a Pantera is better for you, here's a bit on
how we got to where we are - and by the way - if any of the
facts of this comparison are in any way misleading or unfair . . .
show me, and I'll change it! Anyway, back in the day
(ca. 1998 when it was introduced), the Raptor 30 was
destined to be the greatest bird ever because it quickly vanquished
competitors like the Shuttle and Concept 30. More than
a decade later, the manufacturer has improved it,
e.g. when they stretched the boom to make it into a Raptor 50.
Plus, there's a cottage industry devoted to making it fly as well
as newer designs, e.g. Kasama's sweet head. Add butt
loads of aftermarket guys making aluminum bits - termed bling - for
addressing its other shortcomings and you can throw enough money at
it to make it pretty good despite its age.
Moreover, there are lots of guys around who know it
inside and out, and thus, are loyal to the old bird
because it's what they know. Eventually, however, a
youngster comes to market and dethrones the old king.
For example, just as a Corvette can be optioned with a Rat,
the infamous 600hp big block (versus the equally famous Mouse,
or Small Block Chevy V-8), we designed the Pantera from the
onset to accept the big block 91-class engine as a factory option!
That's a LOT more power than a 50-class engine produces, so
to handle it, we used main shaft bearings 40% larger than
those in the Raptor. What's more, instead of using two
main shaft bearings, the Pantera features three! By the way,
replacing the main shaft bearings in a Raptor is a something
of a pain in the rear because it involves splitting the entire main
frame assembly, which is a lot of work. We opted for the
convenience of removeable bearing blocks simply because we're
as lazy as the next guy - and like you, we have family obligations
beyond our hobby.
- Pantera bearings are 40% larger, and
instead of seats molded in the frame
halves, features easy to service bearing
blocks!
Meanwhile, the latest Raptor 50 (2009 SE) is touted for
offering 30° of collective pitch range, but it doesn't matter
because it simply can't accept a big enough engine to pull that
much pitch without bogging anyway . . . so what's the point?
Moreover, if you homebrew a Raptor big block conversion (and
some folks have), there are issues; for example, compare
the six flat-plate blades of its cooling fan to
eight sophisticated airfoiled blades of the Pantera cooling
fan (efficient enough to cool a 91). Worse, the Raptor
50 uses the same clutch as the Raptor 30, which is 37% smaller than
the Pantera's (even the Raptor 90 clutch is 1.4%
smaller). These are tangible improvements you'll enjoy even
if you never opt for the monster horsepower because they improve
durability. reflect on 'why' we offered so much
pitch range to begin with and as a cConsequently, while others
are arguing the relative merits of which 50-class engine is
more powerful, e.g. the Hyper vs. the Redline, versus the flavor of
the week . . . you're secure in the knowledge any 91 on the planet
blows them all away! Plus a Pantera with a 91 is a freaking
blast to fly!

- Pantera cooling fan
features airfoiled fan blades, and the Pantera clutch is
enormous to handle a 91-class engine with ease!
Moreover, our features are killer . . . we've mentioned
the removeable bearing blocks, but our frames accept up to 8
servos via direct mount, and best opff all, the loinkages all make
90° angles when they're at neutral, which are far easier to
build
e.g. unlike the Raptor, there's no servo sub-frame, which as
we all know is prone to breaking in a crash. Added to
it, our tail case features a removeable sideplate for easy
maintenance, plus we use Allen-head bolts instead of Phillips-head
screws, and while they have finally goen a steel tail rotor hub,
which we've had form the get go, they still only put two ball
bearings in the tail rotor grip while thePnera features dual
bearings 'and' a thrust bearing in each tail rotor grip
, and we use far fewer linkages! These
details combine to deliver a simpler, tougher, and far
more durable model. For example, when you crash and break the
Raptor's radio sub-frame, you have to remove and reinstall all
the servos, which is rediculously time consuming task! Worse,
there are more than a dozen linkages to build, wear out, or
lose in a crash versus 'three' for the Pantera. After
all, what's your time worth?
Granted, you won't find nearly as many options for a Pantera,
but this is more a testament to the basic soundness of our
design. Remember, 100% of the aftermarket accessories
for a Raptor are design to rectify some deficit in what you're
buying, eh? Moreover, the few options we make result in
a tangible improvement for the guys who can appreciate what they
do. For example, an available air filter enhances engine life
without sacrificing power, and is easy to maintain. Output shaft
stabilizers for the 3D guys are far better than push-pull linkages,
plus it means you can get by with less expensive servos. Plus the
aforementioned BBC kit for installing a 91-class, and we
offer a few nifty aluminum pieces for guys who just like to
customize!
And here's the kicker, despite bigger bearings, bigger flybar,
thrust bearings in the tail rotor grips, and a bigger clutch, a
Pantera weighs an ounce less than a Raptor! Best of all, our
killer deal means you can get into our 50-class model for far less
money. Sometimes you just have to know when to break with the
past, and Pantera versus Raptor is a perfect example.
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