2420784

Information

• Patent Grant
• 2420784

• References
• Source

• Patent Number

  2,420,784

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1947
  78 years ago

• CPC

  • B64C27/82 - characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
  • B64C2027/8218 - wherein the rotor or the jet axis is inclined with respect to the longitudinal horizontal or vertical plane of the helicopter
  • B64C2027/8227 - comprising more than one rotor
  • B64C2027/8245 - using air jets

• US Classifications

  • 244 - Aeronautics and astronautics
  • 416 - Fluid reaction surfaces
  • D12 - Transportation