Wind Tunnel Investigation of the Controllable Twist Rotor Performance and Dynamic Behavior

Abstract

The Controllable Twist Rotor (CTR) principle is based on a torsionally flexible helicopter blade, utilizing inboard and outboard collective and cyclic controls to optimize the blade pitch distribution along the radius and around the azimuth. The benefits of this unique rotor system include improved performance, delayed retreating-blade stall, and reduced bending moments and vibration levels.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1977
Accession Number
ADA042481

Entities

People

  • A. Z. Lemnios
  • H. E. Howes

Organizations

  • Kaman Corporation

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Forces
  • Computer Programs
  • Control Panels
  • Control Systems
  • Databases
  • Flaps (Control Surfaces)
  • Geometry
  • Helicopter Rotors
  • Mach Number
  • Measurement
  • Performance Tests
  • Physical Properties
  • Test And Evaluation
  • Test Facilities
  • Torsion
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Strategic Security Studies