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The size and shape define what the rotor will lift.

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10y ago

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What is on top of a helicopter?

Rotor blades are on top of a helicopter.


What is the blades on a helicoptor called?

The blades on a helicopter are called rotor blades. They are attached to the rotor mast and rotate to provide lift and control for the helicopter.


How is a helicopter different from an airplane?

A helicopter has rotor blades and an airplane does not.


What do you make your RC helicopter wings out of if it is quite heavy and a little large in size?

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What do you call a helicopter with 2 big blades?

A Helicopter - the number of blades is irrelevant. On a side note - what keeps a helicopter in the air? It's so ugly the earth repels it!


How many blades does fastest helicopter have?

Helicopters created nowadays generally have 2 or 3 blades. The fastest recorded helicopter has 3 blades. as it revolves more pressure is put forth and therefore the helicopter travels faster


What is a helicopter with two sets of blades called?

That is a twin rotoe helicopter


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No, they are correctly called 'rotor blades'


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No, helicopter blades do not break the sound barrier. The tips of the blades can approach the speed of sound, but the entire blade does not exceed the speed of sound.


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What is the rolor on a helicopter?

The rotor is the hub and main blades on top of every helicopter.