STUDY OF THE HEAVY-LIFT HELICOPTER ROTOR CONFIGURATION

Abstract

A two-part parametric analysis and design study was conducted to define the optimum shaft-driven rotor system for the heavy-lift helicopter. A parametric analysis was made for the tandem-lift rotor system and the single- lift/antitorque rotor system; mathematical models were programmed for derivation by large digital computers. The preliminary design study used the rotor geometry determined by the rotor system parametric analysis. Attention was given primarily to the articulated rotor. Study of the hingeless semirigid rotor was limited to an exploratory parametric analysis which, however, covers the areas of risk, the weight increment, and the areas worthy of further study. The preliminary design study specifically covers stall flutter, flap-lag instability, rotor hub shaking forces, and fuselage response.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1966
Accession Number
AD0647365

Entities

People

  • Charles M. Wax
  • Rocco C. Tocci

Organizations

  • Boeing Rotorcraft Systems

Tags

Communities of Interest

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

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Configurations
  • Aerodynamic Forces
  • Aircrafts
  • Airfoils
  • Airframes
  • Antitorque Rotors
  • Control Systems
  • Engineers
  • Helicopter Rotors
  • Horizontal Stabilizers
  • Mach Number
  • Mechanical Working
  • Mechanics
  • Physical Properties
  • Spars
  • Test And Evaluation

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Control Systems Engineering.