While the hard polymer elevator link bushing is a very cost
effective solution for supporting the assembly (especially while
learning to fly since you can't yet feel the difference), over time
(and with experience) you'll come to appreciate the tighter feel of
a bearing, especially since the bushing will wear and
thereby develop a little play. This precison micro bearing is
nicely flanged to fit perfectly into the side frame. Best of
all, it both reduces friction, which lets the servo work easier,
and delivers the benefits of a tight, long lasting, and silky
smooth feel.
- Install by tapping gently with a dowel and a hammer - it's a
tight fit
Fortunately, while it's far easier to substitute for the
bushing during construction, because the polymer material of the
side frames is highly flexible, removing the bolts forward of the
main shaft and holding your tongue just right may allow for the
side frames to be sprung just enough to slip the
elevator linkage and bushings out, e.g. without having to
completely disassemble your model. The downside is the
bearing really needs to be pressed in to ensure the flange is
seated all around, but it can be done in situ if you're
careful (and lucky). Worst case, you split the frames to
install them anyway! This inexpensive upgrade is one
experienced pilots can definitely feel.
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