Center Of Gravity - Control Throws - AeroWorks .90-1.20 YAK 54 ARF-QB Assembly Manual

CENTER OF GRAVITY - CONTROL THROWS

Center of Gravity
Warning, DO NOT skip this step!
The recommended CG is
1.
back from the wing leading edge at
the WING TIP as shown.
2. Balance the .90-1.20 YAK 54 ARF-QB without
fuel in the tank with the batteries installed and
READY TO FLY. The engine, radio, servos,
and batteries you use will determine the final
weight and locations of equipment. Try to bal-
ance the model by moving the batteries and re-
ceiver before adding any ballast.
.
3.
(3 3/8")
4.
1.
71
Start at recommended CG until you are com-
fortable 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
comfortable adjust the CG to suit your flying
style in small steps, especially when shifting
the CG toward the tail. Move the battery or
add small stick on weights to the nose or tail as
necessary.
Note: If additional nose weight is necessary
we recommend moving the engine forward
slightly by adding extra spacer or washers to
move the C.G. forward. Try this before adding
an additional weight.
For aerobatic flying a more aft balance point is
better. For smooth sport flying or precision
pattern a more forward CG is better. An air-
craft 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
The amount of control throw should be
adjusted using mechanical means as much as
possible and then electronically with the radio.
The control throws are shown in degrees and
inches of deflection.
Aileron throw measured in inches at the widest
point of the aileron.