T-38 Student Windshield Birdproofing Efforts Utilizing Metal and Composite Materials for Aft Arch Reinforcement,
PPG INDUSTRIES INC PITTSBURGH PA GLASS RESEARCH CENTER
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This paper provides a review of the T-38 arch reinforcement as it relates to the T-38 Birdproofing Program. Due to the increase in low level training missions in the T-38 aircraft, there exists a need for an improved transparency system capable of withstanding a four 4 pound bird impact at 400 knots. The existing student windshield frame is made of cast magnesium alloy AS9LC-T6 and is neither strong enough nor stiff enough to support a windshield or canopy during the bird resistant transparency system for the T-38. As a result, three methods of reinforcing the frame are under consideration 1 a three piece metal casting, 2 a continuous composite, 3 a continuous machined or stretched formed high strength metal reinforcement.