Test of 1/36-Scale Model of Goodyear Barrage Balloon for Both Deflated and Dilated Envelope With Large and Small Fins

Abstract

Wind tunnel tests were made on a 1/36-scale model of a Goodyear barrage balloon to determine the longitudinal and directional stability with different size fins. Results showed that both directional and longitudinal stabilities are definitely improved by larger fins; however the small fins should provide sufficient stability about the flying cable junction, if the balloon is flown at a pitch angle of approximately 13 deg or more. A slight increase in directional and longitudinal stabilities should exist for the deflated envelope over the dilated envelope, provided the pitch angle does not decrease as the balloon is lowered. Addition of the suspension curtain to the model tends to reduce both directional and longitudinal stbailities slightly.

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Document Details

Document Type
Technical Report
Publication Date
Mar 13, 1942
Accession Number
ADA800408

Entities

People

  • D. W. Young
  • J. H. Gilmore

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aspect Ratio
  • Blimps
  • Buoyancy
  • Coefficients
  • Directional
  • Intellectual Property
  • Leading Edges
  • Models
  • National Security
  • Scale Models
  • Trailing Edges
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Electrical Engineering