Accession Number:

ADA023448

Title:

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

Descriptive Note:

Final rept.

Corporate Author:

UNITED TECHNOLOGIES CORP STRATFORD CT SIKORSKY AIRCRAFT DIV

Report Date:

1976-02-01

Pagination or Media Count:

291.0

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 NASAArmy 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.

Subject Categories:

  • Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE