Contents
Do helicopters idle?
In most helicopters it’s permitted to reduce rpm to idle while on the ground, further reducing fuel burn. RPM remains constant, but power changes. Flight idle is a common term meaning the rotor system is at full rpm, but the collective is full down.
Do not approach or leave helicopter when the engine and rotor are running down or starting up?
If disembarking while the helicopter is hovering, get out slowly and smoothly when cleared to by the pilot. Never approach or leave a helicopter when its engine and rotors are running down or starting up. Crouch while walking for extra rotor clearance. Always remove hats.
What are the three basic flight conditions of a helicopter?
There are three basic flight conditions for a helicopter: hover, forward flight and autorotation.
What happens if a helicopter engine goes out?
If the helicopter engine stops, everything will go quiet in the cockpit, and the machine will yaw violently to one side. When this happens, the pilot needs to instantly lower the collective, taking the pitch off the rotor blades, and initiating a descent.
What happens if a helicopter tail rotor fails?
If the tail rotor fails in flight, engine torque can no longer be countered by the tail rotor, and uncontrolled spinning of the aircraft is a possibility. Most manufacturers call for an immediate autorotation. Some call for a running landing, instead.
What happens when a helicopter tail rotor fails?
What is the purpose of the helicopter governor?
Governor/Correlator A governor is a sensing device that senses rotor and engine rpm and makes the necessary adjustments in order to keep rotor rpm constant. In normal operations, once the rotor rpm is set, the governor keeps the rpm constant, and there is no need to make any throttle adjustments.
How high up do helicopters fly?
Turbine-engined helicopters can reach around 25,000 feet. But the maximum height at which a helicopter can hover is much lower – a high performance helicopter like the Agusta A109E can hover at 10,400 feet.