The Characteristics of Two Model Six-Blade Counterrotating Pusher Propellers of Conventional and Improved Aerodynamic Design

Abstract

Two airfoil plans were used for propeller blades. One is modified Clark Y section designed for structural reliability and the second an NACA 16 airfoil section designed to produce minimum aerodynamic losses. At low air speeds, the propeller designed for aerodynamic effects showed a gain of from 1.5 to 4.0 percent in propulsive efficiency over the conventional type depending on the pitch. Because of the numerous variables involved, the effect of each one on the aerodynamic characteristics of the propellers could not be isolated.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1942
Accession Number
ADA800613

Entities

People

  • Edward Pepper
  • James G. Mchugh

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamics
  • Aeronautical Laboratories
  • Airspeed
  • Barometric Pressure
  • Blades
  • Coefficients
  • Efficiency
  • Experimental Data
  • Low Drag
  • Mach Number
  • Power
  • Propeller Blades
  • Propeller Cuffs
  • Propeller Shafts
  • Propellers
  • Reliability

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Aerospace Engineering