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One of them is called Boeing CH-47 Chinook, a large transport helicopter in service with many airforces .The Chinook is a tandem, meaning the rotors are in front of one another.
There are also others - a Kamov- Ka 50, a Kaman Kamax (or a Husky)
and even the V-22 Osprey.
There are tandem and intermeshed rotors (angled into each other) and coaxial rotors (one on top of the other)
Look up the examples above for pictures of each type.
What else can I help you with?
How many wings does a helicopter have?
Helicopters do not have any wings. Airplanes have wings Helicopter has rotors. A helicopter has at least two sets of rotors. One rotor creates lift ( Main Rotor on the top ) & the other prevents the helicopter from spinning in circles( Tail Rotor).
Are rotors used to help lift a helicopter off the ground?
The rotors are used for lift and thrust on a helicopter.
Is there such thing as a Helicopter which has two rotors?
Yes. All of them do, otherwise they would spin round in circles.
What are helicopter rotors made of?
Titanium or composites. There are also steel and aluminum rotors.
What were the rotors from the first helicopter made from?
They were aluminium
How do rotating rotors contribute to the functionality of a helicopter?
Rotating rotors on a helicopter create lift by generating airflow over the blades, allowing the helicopter to take off, hover, and maneuver in different directions.
Why does a helicopter use rotors instead of nozzles?
Because at present rotors are more efficient
Why a helicopter called chopper?
Because of what it sounds like--the chop-chop-chop sounds coming off the rotors.
How far from the helicopter are the rotors when in motion?
it is probably 1-3 feet depending on the helicopter
Which well known helicopter has 2 rotors?
That is the Chinook.
What do the wings of an airplane and the rotors of a helicopter have in common?
READ THIS - GOOD INFORMATION The wings of an airplane and the rotors of a helicopter both help the object fly. Without those the object could not fly because the wings of an airplane have wind going past it which keeps the airplane in the air. The rotors of a helicopter spin in the wind and help the helicopter fly.
Why does the rotors spin on an helicopter?
The rotor blades on a helicopter work the same way as wings on a fixed wing aircraft. The air passing faster over the top of the airfoil generates lift. Helicopter rotors spin so that the lift is generated without having to have forward airspeed like a fixed wing aircraft.
