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Technicians at both the US Air Force’s Arnold Engineering Development Center at Tullahoma, Tennessee, and at the Lockheed Martin Low Speed Wind Tunnel in Marietta, Georgia, completed their final planned F-35 Lightning II system development and demonstration wind tunnel testing earlier this year. More than 8,600 test hours on all three F-35 variants were conducted at Arnold, which concluded testing on 5 February. More than 7,600 hours on all three variants, including ground effects tests with the landing gear down, were completed in Marietta. A total of more than 48,190 wind tunnel test hours on the Lightning II have been completed at eighteen facilities around the world over the past five-plus years. The test cells at Arnold are also being used to test the F-35’s Pratt & Whitney F135 engine.
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