AFOQT Practice Test 2026 - Free AFOQT Questions and Complete Study Guide

The primary function of the throttle in flight control is to control speed. The throttle regulates the amount of fuel and air that enters the engine, which in turn affects engine power and thrust. By managing the throttle position, pilots can increase or decrease the aircraft's speed as required during different phases of flight, such as takeoff, cruising, or landing.

When a pilot advances the throttle, the engine produces more power, resulting in increased speed. Conversely, reducing the throttle decreases the engine's output, which lowers the speed of the aircraft. While altitude maintenance and optimal engine performance are important, they are secondary effects of how the throttle is controlled. Steering adjustments are accomplished through different flight controls, like ailerons and rudders, rather than the throttle.