REPLACEABLE LEVERS All levers in the throttle quadrant (4 included) can be replaced for two-handed flying experience. The levers for the brake flaps and landing flaps can be moved into the position desired by the user. BOEING REAL-LIFE LINEAR RESISTANCE FEEL Inspired by the real-world sensations experienced with the real Boeing Dreamliner throttle quadrant, TCA Quadrant Boeing Edition replicates the actual resistance force felt by pilots when moving the throttle up or down. BOEING AUTOPILOT TCA Quadrant Boeing Edition includes the iconic Boeing autopilot feature for realistic control of the aircraft's altitude, airspeed and heading. The design and operation of this rotary knob were also inspired by the real Boeing Dreamliner throttle quadrant.