Helicopter Rotor Test Rig (RoTeSt) in DNW - Application and Results

Abstract

The calibration and operation of the model helicopter test rig, 'RoTeSt', in DNW is discussed. The choice of calibration factors for the different aspects of the rig is addressed, and a block diagram of the signal flow is given. Wind tunnel tests conducted on various rotors using the rig are reviewed, comparing results between model rotor operation points and full-scale flight states. Comments are made on: the derivative of the longitudinal angle of control as a function of velocity, the correction values for rotor angle of attack for various working section configurations and mast angles, and on the effect of tunnel temperature on the rotor thrust for constant rotor speed. Results are compared for various rotors including accelerations, dynamic momentum behaviour, and measurements of downwash. Translations, West Germany, German language, Great Britain.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 13, 1989
Accession Number
ADA216601

Entities

People

  • B. Junker
  • G. Braun
  • H. Langer

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Blade Tips
  • Blades
  • Calibration
  • Data Processing
  • Data Storage Systems
  • Downwash
  • Frequency
  • German Language
  • Germany
  • Helicopter Rotors
  • Measurement
  • Test And Evaluation
  • West Germany
  • Wind Tunnel Models
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Fluid Dynamics.
  • Theoretical Analysis.