THE CENTER OF GRAVITY IS LOCATED 132mm BACK
FROM THE LEADING EDGE OF THE WING, AT THE
FUSELAGE.
BALANCE A PLANE
UPSIDE DOWN WITH
THE FUEL TANK EMPTY.
DO NOT try to fly an out-of-balance model !
1- Mount the wing to the fuselage. Using a couple of pieces of masking tape, place them
on the top side of the wing (132mm) back
from the leading edge, at the fuselage sides.
2- Lift the airplane. Place your fingers on the masking tape and carefully lift the plane.
3- If the nose of the plane falls, the plane is heavy nose. To correct this, move the battery pack further back in the fuselage.
If the tail of plane falls, the plane is tail heavy. To correct this, move the battery forward or if this is not possible, stick weight onto
the firewall.
When balanced correctly, the airplane should level or slightly nose down when you lift it up with your fingers.
LATERAL BALANCE:
After you have balanced a plane on the CG, you should laterally balance it. Doing this will help the airplane track straighter.
1- Turn the airplane upside down. Attach one loop of heavy string to the engine crankshaft and one to the tail wheel wire.
With the wing level, carefully lift the airplane by the string. This may require two people to make easier.
2- If one side of the wing fall, that side is heavier than the opposite. Add small amounts of lead weight to the bottom side
of the lighter wing half’s wing tip. Follow this procedure until the wing stays level when you lift the airplane.
132mm
P-51 Voodoo
22- Balance
