67
Center of Gravity
1 1/2” Back
Measured off the Top Wing
From the Wings Leading Edge at the
Wing Tip
CENTER OF GRAVITY
3. Start at recommended CG until you are comfort-
able with the flight characteristics of the aircraft.
You may find this a bit nose heavy at first but
that is fine to start with. After you are comfort-
able adjust the CG to suit your flying style in
small steps, especially when shifting the CG to-
ward the tail. Move the battery or add small
stick on weights to the nose or tail as necessary.
4. For aerobatic flying a more aft balance point is
better. For smooth sport flying a more forward
CG is better. An aircraft that is too nose heavy
does not fly well and is difficult to land. A tail
heavy aircraft is uncontrollable and will likely
crash.
2.
Balance the 50cc Ultimate 20-300 ARF-QB
without fuel in the tank with the batteries in-
stalled and ready to fly. The engine, radio, ser-
vos, and battery you use will determine the final
weight and locations of equipment. Try to bal-
ance the model by moving the battery and re-
ceiver before adding any ballast.
