Game Composites GB1 GameBird, Maintenance Manual

Page: 102 / 269

Maintenance Manual GB1 GameBird
Page date: April 24, 2020
27-2
Description
This chapter describes the design, operation and adjustment of the flight control system assemblies.
Refer to the relevant sub-chapters for specific information about each system.
The airplane has conventional mechanical stick and rudder flight control systems.
The rudder pedal assemblies are linear motion, roller-mounted sleds running on rails.
Pedal motion is transmitted by rods via the four pedal bellcranks to a single central bellcrank then by cables to
the rear bellcrank.
The rudder pedal positions are individually adjustable via telescopic steel square tubes sliding inside each
other and locked in position by spring plungers.
There are four rudder travel stops, one at each front bellcrank and two at center rear bellcrank.
The rudder is mounted to the vertical tail through three hinge points and a single steel hinge pin.
The only adjustable items in the rudder control circuit are the cables via their turnbuckles.
The ailerons are mechanically linked to the control sticks by rods, bellcranks and the torque tube.
Each aileron is mounted to four hinge points by one hinge pin.
Aileron movement is limited through two elastomeric stops mounted on the fuselage structure in the front
cockpit so as to limit torque tube rotation.
The only adjustable item in the aileron control circuit are Aileron control rods, bellcrank to aileron - GB1-2717-
40-00.
The elevators are operated through the torque tube, 2 push-pull rods, an idler and the elevator connector.
Each elevator is mounted to the horizontal tail through two hinge points and one hinge pin each, the fuselage-
mounted elevator connector serves as the inner hinge point.
Each elevator has an integrated mass balance weight bonded in the leading edge of the aerodynamic horn.
The elevator travel stops are located inside the torque tube.
None of the elevator control circuit elements are adjustable.
The elevator and aileron trim tabs are operated by an electric servo each, mounted in the left-hand elevator
and right-hand aileron respectively.
They are controlled via a coolie hat switch on the rear cockpit left-hand side console.
Trim position indication is provided via 2 LED displays adjacent to the switch.
Only one type of spherical bearing (Aurora AWC-4T) and one type of rod end bearing (Aurora ASM-4) are used
throughout the control systems. For details, refer to section
20-03 .