Lemon RX - Vibration

Lemon RX Stabilizer PLUS Receiver – Essential Instructions
Lemon Stab Plus Essential Instructions 2017 v.1a.doc Page 12
The disadvantage of mounting with tape is that subsequent removal of the unit can be difficult. Accordingly,
Velcro®-type tape can be used (avoid thick or extra strong types). Cover the whole bottom of the receiver
with the fuzzy (loop) side of the material. Since the unit MUST be attached firmly, use a patch of the hook-
side material at least as big as the case. Make sure there is no possibility of the stabilizer’s wobbling.
Whichever mounting material you use, be careful when removing the receiver, as the case is only held
together by two small screws. To provide reinforcement, you may wish to apply transparent tape to the case
sides before mounting.
These methods are suitable for electric-powered models, but may not provide sufficient isolation in the
harsher environment of a fuel-powered (IC) model. For further information, see the Complete Guide.
Vibration
Autolevel stabilizers are particularly susceptible to vibration. It is therefore very important, even for an
electric model with a properly mounted receiver, to eliminate possible sources of vibration.
The main symptom of excessive vibration is that in Autolevel mode the plane flies off-level, particularly if
the condition gets worse over time. Even after using a toggle gesture to reset level (see page 8), the off-level
attitude returns. In cases of extreme vibration, even Gyro mode may be affected.
What’s happening is that the stabilizer circuits that keep track of accumulated errors see vibration as a
series of continuous small corrections. There comes a point where the stabilizer “overloads” and can no
longer correct for the errors; its “sense of level” then starts to drift and the attitude of the plane with it.
You should do everything possible to minimize vibration. The required steps are simple: balance the
propeller and check for any out-of-true running of the motor shaft or bearings. A well-balanced electric
model should show no noticeable vibration in any part of its speed range.