Carb Heat, Throttle, Mixture and Flaps (TPM) Controller and Full Size Trim Wheel For Flight Simulators - ComboThis combo includes my Carb Heat, Throttle, Mixture and Flaps controller with Desktop Mounting Clamp plus my Full Size Stand Alone Elevator Trim Wheel Controller for flight simulators. The throttle controller features push pull controls for each carb heat, throttle and mixture. The throttle also features a locking nut, twist it to lock the throttle in place. The Flaps is a momentary switch, push up to raise flaps one notch and push down to lower flaps