Evaluation of the TRAC Variable Diameter Rotor: Preliminary Design of a Full-Scale Rotor and Parametric Mission Analysis Comparisons

Abstract

A two-phase analytical investigation was conducted to continue the development and evaluation of the variable-diameter telescoping rotor aircraft (TRAC) rotor system. The first phase was a preliminary design of a full-scale, flightworthy rotor system suitable for subsequent wind tunnel testing in the NASA-Ames 40-by 80-foot wind tunnel and for flight testing on an H-3 helicopter or the NASA/Army Rotor Systems Research Aircraft (RSRA). The second phase of the investigation was a comparative parametric analysis to evaluate TRAC rotor compound helicopter and stowed rotor aircraft concepts relative to conventional- rotor pure and compound helicopters.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1976
Accession Number
ADA023448

Entities

People

  • Evan A. Fradenburgh
  • Lee N. Hager
  • Neville F. K. Keffort

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircraft Equipment
  • Aircraft Industry
  • Aircrafts
  • Airframes
  • Composite Materials
  • Fixed Wing Aircraft
  • Friction
  • Geometry
  • Helicopters
  • Mechanics
  • Modulus Of Elasticity
  • Rotary Wing Aircraft
  • Solid Lubricants
  • Spars
  • Tensile Strength
  • Weight

Fields of Study

  • Physics

Readers

  • Aerospace Engineering

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers