FEASIBILITY STUDY OF CRUISE FAN PROPULSION SYSTEMS AND ASSOCIATED POWER TRANSFER SYSTEMS FOR COMPOUND/COMPOSITE AIRCRAFT

Abstract

The report examines the feasibility and relative merit of five gas- and shaft-coupled cruise fan propulsion systems in various compound and composite aircraft configurations. A 1970 time period is assumed. Propulsion and airframe parameters are defined, and the results of an optimization process for maximum aircraft relative productivity in a fixed short-range transport mission are shown. Ranges of vehicle disc loading of from 5 to 11 pounds per square foot and of fan bypass ratio of from 3 to 12 are covered. The problems of rotor-fan power transfer systems are reviewed and possible solutions evaluated. Detailed weight data is given for optimum aircraft and propulsion system combinations. Convertible shaft-driven cruise fans in an integrated propulsion system are found to be particularly attractive; however, considerable work is required in development of power management systems.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1967
Accession Number
AD0663831

Entities

People

  • F. H. Dean
  • J. J. Schneider
  • P. C. Prager

Organizations

  • Boeing Rotorcraft Systems

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Auxiliary Power Units
  • Exhaust Nozzles
  • Flight Speeds
  • Fuselages
  • Gas Turbines
  • Geometry
  • Helicopters
  • Mach Number
  • Rotary Wing Aircraft
  • Spars
  • Turbines
  • Turbogenerators
  • Turboshaft Engines

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Aerospace Propulsion Engineering.
  • Systems Analysis and Design