Live Fire Testing of the F-22 (1995) / Chapter Skim
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EXECUTIVE SUMMARY
EXECUTIVE SUMMARY
Pages 1-10
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From page 1... ...
Several data gathering meetings were held in Washington, D.C., one was at Wright-Patterson Air Force Base, Dayton, Ohio, which is the location of the F-22 System Program Of lice and the Wright Laboratory, where many Air Force live fire tests are conducted, and one was at the Naval Air Warfare Center located at China Lake, California, where the Navy conducts similar tests. These meetings exposed the committee to the filet spectrum of views involving live fire testing of fighter aircraft.
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From page 2... ...
There is currently no doubt within the Department of Defense about this requirement or the need for a waiver if such tests are not to be performed. If the tests are waived, the law permits the Secretary of Defense to allow Instead live fire tests against components, subsystems, and subassemblies, together with design analyses, modeling and simulation, and analysis of combat data.
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From page 3... ...
However, the committee has some concerns about the program. For example, no live fire tests are currently planned to assess damage done by direct hits on important aft structural members; the current vulnerability specifications do not include the effects of on-board ordnance; and the analysis does not properly account for the flammable properties of the hydraulic and cooling fluids.
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From page 4... ...
~ has been conducted and is planned, even though the Navy vulnerability assessment team does not expect to discover unanticipated outcomes. It is possible that additional data could be obtained from similar live fire testing of the major parts of an F-22 and result in revisions to the aircraft design to reduce furler its vulnerability.
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From page 5... ...
Interpret a waiver as reinforcing the need to conduct robust live fire tests of the F-22 that build incrementally from the component level to the subassembly or large assembly levels. (Recommendations to strengthen the current test program appear below.)
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Pursue methodologies to examine cost-benefit issues in the light of frameworks that take a broad view of how the future may develop for weapon systems like the F-22. Sufficiency of Tests Planned for the F-22 The committee's evaluation of the current vulnerability assessment program considered threat-related assumptions as well as the attendant ~ruInerabilities and analyses and tests associated with the F-22's major subsystems (i.e., structure and integral fuel tanks, fuel system and dry bays, flight control and auxiliary systems, weapons bay and on-board ordnance, engines, flight crew, and fire protection systems)
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From page 7... ...
Recommendation 4a. Conduct additional live fire testing to determine the damage that can be expected from a hit in the Frame 6 aft boom attachment area.
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From page 8... ...
Use the prototype air vehicle fuselage in Test 6A in lieu of a mock-up. (The Air Force has considered using this fuselage for Test 6A, which will examine the synergistic effects of pressurized coolant lines and cooled avionics modules and the adjacent powered electrical wiring in the F-22 forward fuselage lower avionics bays.)
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From page 9... ...
Include in operational requirements for any new missions user validation of quantitative vulnerability requirements, and plan new live fire tests as necessary in response to those requirements. Vulnerability Assessment Tools The committee reviewed the documentation, data bases, and models that complement live fire testing for the F-22 arid other aircraft programs.
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From page 10... ...
Direct the loins Technical Coordinating Group on Aircraft Survivability to define and plan a Joint Live Fire Test Program that will, over the next several years, produce sound vulnerability data bases; apply aggressive fielding to implement this program. Modeling is essential because the virtually infinite possibilities for threat-target interactions Remarry ways to extend the limited number of tests that can be conducted.
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