PERFORMANCE AND STRESSES OBTAINED ON AN ISOLATED VTOL-TYPE PROPELLER OPERATING IN HOVERING, TRANSITIONAL, AND AXIAL FLIGHT

Abstract

Experimental performance and blade stresses measured on a three- bladed VTOL-type propeller tested in free air are presented. The isolated propeller was tested over ranges of prop speed, forward velocity, blade angle setting, and thrust axis to free-stream angle. Correlation with a theoretical method of predicting propeller performance and blade stresses was made. It was found that when the propeller was operating in a flight condition for which the theory was developed, correlation between theory and experiment was good. When the propeller was operating in a flight condition where very small positive or negative effective angles of attack were encountered, correlation between theory and experiment was poor. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0661087

Entities

People

  • Andrew R. Trenka

Organizations

  • Calspan

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Army Aviation
  • Classification
  • Computer Programs
  • Contracts
  • Data Reduction
  • Experimental Data
  • Free Stream
  • Measurement
  • New York
  • Propellers
  • Right Angles
  • Security
  • Short Takeoff Aircraft
  • Strain Gages
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.