How strong are fighter-jet windshields made from PPG Industries Inc.'s polycarbonate? Strong enough to withstand striking a 4-pound bird at 400 knots. PPG helped develop an improved windshield for the F-5 A and E fighters made of P C with a composite frame. The company showed the windshield at its booth at the Paris Air Show, June 14-22. At PPG's testing and certification facility in Huntsville, Ala., Steve Wortman (center) shows where the bird hit a test win dshield. Observing are (from left) U.S. Air Force Capt. Jeff Farmer, an aerospace engineer; Dennis Conboy, tooling engineer at McClellan Air Force Base; John Dickey, F-5 project engineer at Integrated Composites of Marina, Calif., which designed and manufactures the mounting structure; and Chini Panjeti, PPG's engineering associate.
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