Tests of Four Full-Scale Propellers to Determine the Effect of Trailing-Edge Extensions on Propeller Aerodynamic Characteristics

Abstract

Propellers with trailing-edge extensions were studied to determine aerodynamic characteristics. Trailing-edge extension increased power absorbed by propeller with little loss in efficiency. Power coefficient for maximum efficiency was greater for 20% camber type extension than for 20% straight type extension over range of advance ratio of 1.0 to 2.5 although camber type was less efficient. Efficiency was about the same for cruising and high-speed at a high power coefficient for propeller with extension.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1945
Accession Number
ADA800873

Entities

People

  • Albert J. Evans
  • Julian D. Maynard

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Aerodynamic Characteristics
  • Aeronautical Laboratories
  • Air Force
  • Airspeed
  • Blades
  • Camber
  • Coefficients
  • Dynamic Pressure
  • Dynamometers
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Propeller Blades
  • Propellers
  • Trailing Edges

Readers

  • Aerodynamics.
  • Aerodynamics/Aeronautics.