Pre-Solo Aeronautical Knowledge Practice Test

The primary function of the throttle in an aircraft is to control the power produced by the aircraft's engine. By adjusting the throttle, the pilot can increase or decrease engine power output, which directly affects the aircraft's speed and climb performance. When the throttle is opened, more fuel and air enter the engine, increasing power and propelling the aircraft forward. Conversely, reducing throttle decreases engine power, leading to a reduction in speed and descent if in flight.

Understanding the role of the throttle is crucial for pilots, as it enables them to manage performance during various phases of flight, such as takeoff, cruising, and landing. Proper use of the throttle helps ensure safe and efficient operation of the aircraft.