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Flying a helicopter is a delicate balance of Rotor RPM and Rotor Torque. Too little RPM and it would lose lift. Too much RPM, then the centrifugal forces could damage the rotor blades. When the pilot adds Collective input to climb, the Rotor Torque could be exceeded and result in failure of the mast. Each flight restriction was based upon the design of the helicopter's mast, blades and grip.
Also, if the RPMs are too high the tips of the blade will hit the sound barrier and vibrate out of control. A helicopter with a blade length of 30 ft (radius) will only have to be spinning at around 330 RPMs to reach the sound barrier.
What else can I help you with?
What should be the maximum RPM of helicopter rotor?
That depends on type of helicopter
Why does a typical small helicopter with a single rotor have a second small rotor on its tail?
The small rotor on the tail, called the tail rotor, counteracts the torque produced by the main rotor of the helicopter. Without the tail rotor, the helicopter would spin uncontrollably in the opposite direction of the main rotor. The tail rotor helps maintain the helicopter's balance and heading.
Another name for helicopter propelers?
Main rotor and tail rotor. The main rotor is on top of the helicopter consisting of two or more blades, and the tail rotor is at the back of the helicopter, which also consists of two or more blades.
Where was the helicopter rotor made?
The helicopter was made in China.
What is on top of a helicopter?
Rotor blades are on top of a helicopter.
What does the tail rotor of a helicopter do?
it stabilises and steers the helicopter.
What is a helicopter with 2 propelers?
That is a twin rotor helicopter
The main rotor on a helicopter creates what?
The main rotor on a helicopter creates lift, which allows the helicopter to become airborne and maintain its altitude during flight.
What are the major parts of a helicopter?
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
How does a helicopters rotor blades make the helicopter turn left and right?
By adjusting the speed of tail rotor, which points to the side, the pilot can turn the helicopter in flight. The main upper rotor actually plays only a minor part in making helicopter turn. The part supplying most of the control is the tail rotor. Because the main rotor is spinning in one direction, without a tail rotor, the body of the helicopter would spin around in circles in the opposite direction. The reason for this is explained in the first part of Newton's third law of motion: for every action there is an equal and opposite action. The torque generated to make the rotor turn also exerts torque on the body of the helicopter "willing" it to spin the opposite direction. However, the tail rotor spins, pushing air to the side. This creates force in the opposite direction, keeping the helicopter stable. By simply adjusting the speed of the tail rotor, the helicopter can be turned in flight.
What is a blade from a helicopter in words?
The main blade on a helicopter is the 'rotor'
How is a helicopter different from an airplane?
A helicopter has rotor blades and an airplane does not.
