Tandem rotors

As a double rotor is defined as the use of two generally equal-sized main rotors, which by their opposite sense of rotation torque ( yaw moment ) compensates for helicopters. By coupling both rotors about their gear or transmission waves is taken care of for the synchronous run in all operating conditions. When designing a distinction:

  • Tandem configuration: The rotors are arranged one behind the other in the direction of flight, wherein the rear of the rotor planes is usually higher than the front.
  • Transverse rotors The rotors are arranged side by side, usually on arms
  • Flettner rotor Double: To a small angle diverging rotor axes
  • Coaxial rotor: one above the other arranged on an axis rotors

Double rotors are also some changes and VTOL aircraft arranged in the transverse axis, similar to the helicopters lateral rotors, for example in the Bell Boeing V- 22nd In the transition to horizontal flight, they serve as propellers.

  • Helicopter
  • Aeronautical engineering
Helicopter rotor Intermeshing rotors Contra-rotating propellers Bell Boeing V-22 Osprey
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