Climb and High-Speed Tests of a Curtiss No. 714-1C2-12 Four-Blade Propeller on the Republic P-47C Airplane

Abstract

Climb and high-speed tests of a Curtiss four-blade propeller and P-47C airplane, showed loss in efficiency of 5 to 8% when power was increased from normal to military. This loss was attributed to reductions in section lift-drag ratios resulting from increased operating lift coefficients. In high-speed flight at military power, losses in efficiency because of compressibility started at airplane Mach number less than 0.4 and increased to about 11% at airplane Mach number of 0.7. Tests indicated that propeller efficiency may be improved in climb and high speed by increasing solidity and reducing rotational speed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1944
Accession Number
ADA800874

Entities

People

  • A. W. Vogeley

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aeronautics
  • Aircrafts
  • Airplanes
  • Airspeed
  • Altitude
  • Coefficients
  • Compressive Properties
  • Efficiency
  • Mach Number
  • Propellers
  • Republic
  • Static Pressure

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerodynamics/Aeronautics.