THE THROTTLE
The Throttle, on an aircraft with a fixed pitch propeller controls the engine revolutions and therefore the power. If the aircraft is in straight and level flight and the power is increased without changing the elevators position then the aircraft will climb. Likewise if the power is decreased the aircraft will descend. If the pilot wishes to fly faster, while maintaining level flight, he must increase the power and at the same time ease the “yoke” (control column) forward. He must then check the Vertical Speed Indicator (VSI) to ensure that the aircraft is neither climbing nor descending. The airspeed indicator (ASI) should now show an increase in speed. To decrease speed, while maintaining level flight, he must decrease the power and at the same time ease the yoke backwards. He must then check the Vertical Speed Indicator (VSI), to ensure that the aircraft is neither descending nor climbing. The airspeed indicator (ASI) should now show a decrease in speed.