STOPPED STOWED ROTOR COMPOSITE RESEARCH AIRCRAFT

Abstract

The report describes the preliminary design of the Army VTOL Rotary Wing Composite Research Aircraft (CRA). The vehicle is configured to meet the requirements, and satisfy the objectives, of this program. This CRA design was the result of combining the most desirable features of a helicopter with those of a fixed-wing aircraft. The vehicle derived was capable of hovering as a helicopter with low rotor downwash velocity and yet cruise at high speed with economy and little noise or vibration. Use of the rigid-rotor system supplied positive control moments, in-flight rotor stop/start capability, and a simple blade-folding/stowing mechanism. The CRA can fly up to the conversion speed in the helicopter mode transfer lift and control to the conventional fixed-wing surfaces, stop the rotor, fold the blades and retract the rotor and blades into the top of the fuselage. This process is reversible to convert from the fixed- wing configuration to the helicopter. The results of the study indicate that the CRA is feasible and additional study and development should be undertaken.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
AD0684334

Entities

Organizations

  • Lockheed Martin

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Configurations
  • Airborne Warning And Control System
  • Aircraft Equipment
  • Aircraft Industry
  • Aircrafts
  • Airframes
  • Control Systems Engineering
  • Convection
  • Fixed Wing Aircraft
  • Flight Speeds
  • Fuselages
  • Heat Transfer
  • Horizontal Stabilizers
  • Nose Wheels
  • Spars
  • Stabilization Systems

Readers

  • Aerodynamics.
  • Aerodynamics/Aeronautics.
  • Electrical Engineering