Carson BIG Hughes 500 Instruction Manual page 17

Equilibrating the model
The helicopter must be correctly balanced. If
there is an incorrect location of the centre of
gravity, you lose the control over the model!
The location of the centre of gravity of the
model is preset. Corrections are only necessary
if you are not satisfied with the flight
characteristics.
The centre of gravity of the helicopter-model
should lie exactly in the rotation point of the
rotor axis.
Shift the airplane battery in order to determine
the optimal location of the centre of gravity.
• Hang the helicopter on the upper rotor head,
in the extension of the axis of rotation.
The helicopter may not tip forwards or
backwards, no matter in which position the
principal rotor blades are located.
• If the nose drops, then the model is top-
heavy. Shift the airplane battery slightly
backwards.
• If the tail sinks, shift the airplane battery forward in order to
adjust the centre of gravity.
Secure the airplane battery when you have determined the
optimal location of the centre of gravity.
Fastening the rotor blades
The rotor blades must be able to align themselves 180° to each
other solely by the centrifugal force.
• Therefore check the seating of the retaining screws (a) of the
rotor blades:
The screws may only be tightened firmly enough that the
rotor blades still fold downwards when you tip the helicopter
to the side.
Lateral equilibration
• Support the helicopter at the end of the tail beam and front
on the longitudinal axis as far as possible. To do this, remove
the cabin hood. The helicopter may not tip to one side, no
matter in which position the principal rotor blades are
located.
CARSON Helikopter BIG Hughes 507021
GB
(b)
(a)
17