POWERPLANT STUDIES FOR SHAFT-DRIVEN HELICOPTER

Abstract

Powerplant studies were conducted for a shaltdriven, heavy-lift helicopter (HLH) with design gross weights ranging from 75,000 to 85,000 lbs and a maximum payload capability of 40,000 lbs. The number of engines required, the gross weight, and the fuel consumed for specified missions using various powerplant configurations were determined. Control system studies were conducted to investigate control modes, power train dynamics, and multiengine control and load sharing. Power coupling studies were conducted which included combining and reduction gearing, cross shafting, clutches, and gas-coupled rotor drives. The results of these studies indicate: use of regenerative engines will result in fuel savings on all missions; approximately 18,000 shaft horsepower (sea level static rating) may be required; current multiengine control techniques are applicable to the HLH; and a gas-coupled rotor drive system warrants further investigation.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1965
Accession Number
AD0365464

Entities

Organizations

  • General Motors

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Combustion
  • Control Systems
  • Exhaust Gases
  • Fixed Wing Aircraft
  • Gas Turbines
  • Heat Transfer
  • Helicopter Rotors
  • Helicopters
  • Propulsion Systems
  • Regulators
  • Reliability
  • Resonant Frequency
  • Safety Equipment

Fields of Study

  • Physics

Readers

  • Aerospace Engineering