EFFECT OF GROUND BOARD BOUNDARY LAYER ON AIR CUSHION VEHICLE WIND TUNNEL TESTS.

Abstract

Forward speed tests were performed on an Air Cushion Vehicle in the subsonic wind tunnel using a fixed ground board. The effect of the ground board boundary layer on the reactions of the vehicle was determined by comparing the test results with previous tethered flight tests conducted in the circular track facility. Comparisons with similar reported tests were made to extend these test results. The results did not indicate any noticeable differences between the wind tunnel and circular track results. Analysis showed that differences begin to appear as the forward speed increases and curves the leading edge jet backwards. The magnitude of the boundary layer effect on the vehicle reactions is shown to depend on the testing technique used. The suitability of low priced model aircraft engines for low budget powered model testing is demonstrated. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1967
Accession Number
AD0646808

Entities

People

  • E. K. Garay

Organizations

  • University of Toronto

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Cushion Vehicles
  • Aircraft Engines
  • Aircrafts
  • Boundaries
  • Boundary Layer
  • Layers
  • Leading Edges
  • Subsonic Wind Tunnels
  • Test Facilities
  • Vehicles
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.