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Center of Gravity
1.
Warning, do not skip this step!
The recom-
mended CG is 4 1/4” back from the wing lead-
ing edge at the wing tip as shown.
2. Balance the YAK-54 without fuel in the tank
with the batteries installed and ready to fly. The
engine, radio, servos, and battery you use will
determine the final weight and locations of
equipment. Try to balance the model by moving
the battery and receiver before adding any bal-
last.
.
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.
Control Throws
1. Start at the forward end of the CG range until
you are comfortable with the flight characteris-
tics of the aircraft. You may find this a bit nose
heavy at first but that is fine to start with. After
you are comfortable adjust the CG to suit your
flying style in small steps, especially when shift-
ing the CG toward the tail. Move the battery or
add small stick on weights to the nose or tail as
necessary.
2. Aileron throw measured in inches.
