In a very similar way to ordinary aero engine. There are internal combustion engines which work on the induction, compression, power and exhaust system, linked through a gearbox to a shaft which drives the prop. Or the jet version which works by hot gases turning a turbine, which has a shaft running through the middle, again linked through a gearbox to a shaft which drives the prop. This is called a turboprop.
its part of the engine but works in conjunction with the PC board.
Some helicopter main rotor blades spin at roughly 185 rpm and extend out up to 20 ft so your question is subjective to the helicopter you are speaking of.
A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.
Helicopters and windmills turn different ways. Windmills turn by the wind. The stronger the wind, the faster the windmill goes. Helicopter turn by electricity. Electricity is "hot". For Example: If you get electrocuted it will feel hot. You will really be getting burnt. So the heat of of the fire will light the wire's and that will turn the helicopter's propeller.
12.5 ft. to 19 ft. :-)
A helicopter with a jet engine. The engine is adapted to give power to a transmission, rather than thrust.
the engine
if the engine fails a good pilot can 'auto rotate' using the dead rotor to lower the helicopter
There are many different helicopter engines, most of them now jets
No, a helicopter cannot go at the speed of Mach 1.5. It is because, this kind of propulsion can only be achieved through a jet engine. A helicopter's engine cannot achieve that.
The Robinson 22 helicopter has a four cylinder pistol engine. The single-engine light utility helicopter was designed in 1973 and has been in production since 1979. The cost of one of these helicopters is about $270,000.
you turn off the engine
You can't do that.
The Chinook helicopter is an American twin-engine helicopter. The helicopter is used by military forces. The Chinook helicopter is mainly used for troop transportation, artillery movement, and resupply on the battlefield.
Almost the same as the other similar aircraft engines. And depends on the size of the helicopter, consequently to the power of the engine.
They are either powered by a turbine engine like a jet engine or a piston engine.
It's main rotor, tail rotor makes the helicopter to move which is powered by it's engine. These are the major parts of a helicopter