Thrust lever

The throttle lever assembly is often designed to incorporate high-pressure (HP) cock switches so that the pilot has instinctive control of the fuel supply to the engine.

Microswitches are located in the throttle box so that the throttle levers actuate the switches to shut the valves when the levers are at their aft end of travel.

Pushing the levers forward automatically operates the switches to open the fuel cocks, which remain open during the normal operating range of the levers.

The throttle lever must be pulled back to its aft position and a mechanical latch operated, or a detent (hard point) overcome, to allow the lever to travel further and shut off the fuel valve.

Propeller engines including turboprop engines are "power producing", meaning they produce power which is converted into thrust by the propeller.

Thrust levers in a Boeing 747 Classic. The center and rear levers are used during flight, while the forward levers control reverse thrust .
Airline Pilot rests hand on throttle quadrant of a Boeing 767