PULSE-JET HELICOPTER POWER CONTROL SYSTEM DEVELOPMENT

Abstract

Curves of the aerodynamic performance vs speed for the XH-26 helicopter and the performance of the AJ-7.5 pulsejet engine are presented and are combined into level-flight equilibrium charts for altitudes below 10,000 ft. A schedule of fuel flow vs collective pitch for a 425-fps tip speed was derived from the charts. A power-control system is proposed which consists of an altitude-compensating relief value, a cam relating the fuel flow to the collective pitch, a manual-override bypass valve, fuel shutoff and equalizing valves, and the rotor fuel system. The power-control system appears to be simple and adequate. (See also AD-16 733)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1953
Accession Number
AD0016563

Entities

People

  • R.w. Mcjones

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Altitude
  • Bypass Valves
  • Control Systems
  • Engine Fuel Systems Components
  • Engines
  • Flight
  • Fuel Systems
  • Helicopters
  • Level Flight
  • Pulsejet Engines
  • Valves

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerospace Engineering
  • Combustion and Flow Dynamics.