Accession Number:

ADA523066

Title:

Aeromechanics Analysis of a Heavy Lift Slowed-Rotor Compound Helicopter

Descriptive Note:

Conference paper

Corporate Author:

ARMY RESEARCH DEVELOPMENT AND ENGINEERING COMMAND MOFFETT FIELD CA AVIATION AEROFLIGHT DYNAMICS DIRECTORATE

Personal Author(s):

Report Date:

2006-01-01

Pagination or Media Count:

17.0

Abstract:

A heavy lift slowed-rotor tandem compound helicopter was designed as a part of the NASA Heavy Lift Rotorcraft Systems Investigation. The vehicle is required to carry 120 passengers over a range of 1200 nautical miles and cruise at 350 knots at an altitude of 30,000 ft. The basic size of the helicopter was determined by the U.S. Army Aeroflightdynamics Directorates design code RC. Performance optimization and loads and stability analyses were conducted with the comprehensive rotorcraft analysis CAMRAD II. Blade structural design blade inertial and structural properties was carried out using the loading condition from CAMRAD II. Performance optimization was conducted to find the optimum twist, collective, tip speed, and taper using the comprehensive analysis. Designs were also developed for alternate missions to explore the influence of the design condition on performance.

Subject Categories:

  • Aerodynamics
  • Helicopters
  • Transport Aircraft
  • Civilian Aircraft
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE