Hélicoptères Guimbal
SECTION 7
CABRI G2
SYSTEMS DESCRIPTIONS
7-4
Approved under DOA EASA.21J.211
The steel tail rotor driveshaft runs inside the tail cone, on three ball
bearings.
A disc rotor brake is installed on the fore portion of tail driveshaft. The
brake jaws are actuated through a cable control, from an overhead
control quadrant.
The tail gearbox contains a splash-lubricated spiral bevel-gear set which
transmits power to the tail rotor.
It also incorporates the tail rotor pitch control mechanism.
It is equipped with a filler plug / breather, a sight gage and a self-closing
magnetic chip detector.
Flight controls
The Cabri G2 has dual flight controls which includes cyclic stick,
collective stick and pedals.
Left controls are totally removable, without tools, if needed. They can be
stowed in the cabin luggage compartment.
Cyclic and collective controls actuate main rotor blade pitch through
push-pull rods, bellcranks and the swashplate.
Yaw control is transmitted from the pedals to the tail rotor by a long
flexible push-pull control.
The collective stick grip is divided into one fixed part and one twist grip
to enable sensitive throttle control, and to allow governor motion.
The collective stick is equipped with a friction mechanism, which is
controlled by the pilot, without releasing his hands from the controls.
The cyclic sticks have no friction mechanism, but a dual-axis electric
trim, allowing to completely release the static forces in flight.
This trim system is controlled either by the pilot or the copilot, through a
circuit which gives priority to the one who activates it first.
Rotor brake
A rotor brake allows the pilot to stop quickly the rotor after flight. This
rotor brake is mounted on the tail rotor driveshaft. It is actuated by a
cable connected to a pull handle located above the pilot (yellow handle).
It is equipped with a switch used to trigger BRAKE light and prevent
clutching when the brake is applied or seized.