ON CALCULATION OF MOMENT COEFFICIENTS OF SELF-DAMPING AND EFFECTIVENESS OF AIR STEERING RUDDERS OF 'FLYING PLATFORM' ON HOVERING REGIME,

Abstract

Control of ducted-fan helicopter of the 'flying platform' type is carried out in most cases by air vanes with the help of which during calculation of self-damping of the platform there is ensured both a proper margin of stability and also a definite speed of attenuation of perturbed motions. First order of approximations give simple calculating formulas for appraisal of effectiveness of air vanes and self-damping of 'flying platform' on conditions of hovering. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 21, 1964
Accession Number
AD0619545

Entities

People

  • E. A. Kuklev

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Attenuation
  • Coefficients
  • Ducted Fans
  • Fans
  • Helicopters
  • Hovering
  • Platforms
  • Steering

Readers

  • Aerospace Engineering
  • Calculus or Mathematical Analysis
  • Marine Hydrodynamics