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An engine usually more than one which is connected to a main driveshaft then that is connected to a C-box or Combining gear box which connects to a transmission which turns the rotors.
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Related questions
What lifts helicopters?
The rotor blades lift helicopters
What is a palindrome for 'a helicopters blade'?
rotor
Who invented the rotor of the helicopters?
sam bells
Why are helicopters noisy?
Older helicopters had noisy rotor blades, modern ones are very quiet.
What does a rotor head on a helicopter do?
Its Spins The Helicopters Wings
What is the airfoil on a helicopter?
The rotor blade is the airfoil on helicopters.
Where is the rotor on an airplane?
Helicopters have rotors airplanes have propellers
Are helicopters rotor blades on the top called propellers?
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All helicopters have a tail rotor to stabilise them.
What is a blade from a helicopter?
It is the major part of the rotor. Helicopters can have 3 up to 8 blades on a rotor.
Why do helicopters have a small rotor of their tail?
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Are there any 3 blade rotor helicopters in use?
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