How do tandem rotor helicopter work?
Tandem rotor designs achieve yaw by applying opposite left and right cyclic to each rotor, effectively pulling both ends of the helicopter in opposite directions. Tandem rotor helicopters typically require less power to hover and achieve low speed flight as compared to single rotor helicopters.
How does a Chinook rotor work?
Lift, in a Chinook helicopter, is produced by a rotor system consisting of two fully articulated counter-rotating rotors. The forward rotor is driven by the forward transmission through the rotor drive train. The aft rotor is driven by the aft transmission through a vertical drive shaft.
What type of rotor is found on aircraft with dual rotor blades?
to the others. Fully articulated rotor systems are found on helicopters with more than two main rotor blades. As the rotor spins, each blade responds to inputs from the control system to enable aircraft control.
How does a tandem rotor helicopter compensate for torque effect?
A tandem rotor helicopter has two main rotor systems and no tail rotor. The smaller rotor disc area is compensated by having two rotors. The anti-torque function is performed by the counter-rotating rotors, with each cancelling out the other’s torque, so all of the power from the power-plants is employed for lift.
What does NOTAR mean?
NOTAR (“no tail rotor”) is a helicopter system which avoids the use of a tail rotor. It was developed by McDonnell Douglas Helicopter Systems (through their acquisition of Hughes Helicopters).
What is dual rotor helicopter?
Tandem rotor (or dual rotor) A tandem rotor helicopter has two main rotor systems and no tail rotor. Usually the rear rotor is mounted at a higher position than the front rotor, and the two are designed to avoid the blades colliding, should they flex into the other rotor’s pathway.
What helicopters have 2 rotors?
Boeing CH-47 Chinook
The Boeing CH-47 Chinook is an American twin-engined, tandem rotor, heavy-lift helicopter developed by American rotorcraft company Vertol and manufactured by Boeing Vertol (later renamed Boeing Helicopter, then Boeing Rotorcraft Systems, and now known as the Vertical Lift division of Boeing Defense, Space & Security).