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),

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s):

Report Date:

1971-10-01

Pagination or Media Count:

12.0

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

Subject Categories:

  • Aerodynamics
  • Helicopters
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE