Check Centre Of Gravity - Pro Built GILES 202 Assembly Instructions Manual

14 & 15. Check centre of gravity & Set control throws.
Balance the plane.
First flights should balance 1" in front of the center of the wing tube
.
Note this is a change from the earlier 1 3/4" to 2" which was a very conservative setting.
We balanced the plane on a dowel after first marking the balance point on the bottom of the
fuselage.
If your plane is tail heavy, consider moving batteries as far forward as possible, remove
anything from the tail that might be adding weight, get a lighter tail wheel, heavier ignition
battery. Remember that the farther weight is from the CG the less of it you will need. A
small weight on a long arm makes a big difference. A heavy spinner has more effect that a
bigger battery because it is farther from the CG.
Your flying style may require a different balance point, but this is a good safe starting point.
When making CG changes always do it a little at a time or you could find yourself flying a
plane that cannot be landed.
Control Throws
We set the control throws as follows on planes in test. Please keep in mind the high rates
specified here are for 3D, not for just faster response.
The elevator in particular at these rates will cause instant stalling, tumbling, and all sorts of
other things that can only be done at low speeds.
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