 An electric fuel pump is used.The G 109 uses conventional controls, duplicated for both seats, including the throttle (not available on the left in standard production G 109s).The rudder pedals, which also operate the wheel brakes, are adjustable forward and backward to suit individuals of differing leg length and airbrakes are used to increase the rate of descent during the landing approach as well as limiting airspeed to Vne (Velocity never exceed), if required.