Evaluation of F-111 Weapon Bay Aero-Acoustic and Weapon Separation Improvement Techniques

Abstract

Several aero-acoustic suppression devices have been evaluated which were considered feasible for installation on an F-111 aircraft for flight test evaluation. The most promising modification consists of a saw tooth spoiler mounted at the leading edge of the weapon bay. This device would be erected to a 90 degree position during the bay doors opening sequence. The spoiler is folded flush with the fuselage during all other flight conditions. Wind tunnel tests have shown that this spoiler improves the aero-acoustic environment within the open weapon bay and improves the weapon separation characteristics over the Mach range of .95 to 1.3 investigated during the drop test phase. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1979
Accession Number
ADA070253

Entities

People

  • Rodney L. Clark

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Airframes
  • Altitude
  • Boundary Layer
  • Drop Tests
  • Dynamic Pressure
  • Free Stream
  • Instrumentation
  • Mach Number
  • Pressure Distribution
  • Static Pressure
  • Test And Evaluation
  • Test Facilities
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerospace Engineering
  • Cellular and Molecular Pathways of Apoptosis.
  • Marksmanship and Weaponry.