Accession Number : AD0735439

Title :   Aerodynamic Calculation for Helicopter Lifting Rotors in Steep Descent (Vortex Ring Method) (Aerodinamicheskii Raschet Nesushchevo Vinta Vertoleta na Razhimakh Krutogo Snizheniya Metodom Koltsevykh Vikhrei),

Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s) : Shaidakov,V. I.

Report Date : OCT 1971

Pagination or Media Count : 12

Abstract : The report describes calculations of the aerodynamic characteristics of a helicopter rotor at any angle of attack in a flow with comparatively high velocity. The study is concerned with the sloping descent of a helicopter and should be regarded as a first attempt to establish a theory of the aerodynamics of steep descent for helicopters. It is based upon the vortex ring method of aerodynamic calculation for lifting systems in steep descent. (Author)

Descriptors :   (*HELICOPTER ROTORS, AERODYNAMIC CHARACTERISTICS), VORTICES, HELICOPTERS, DESCENT, ANGLE OF ATTACK, NUMERICAL ANALYSIS, USSR

Subject Categories : Aerodynamics
      Helicopters
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE