Keeping the U-2 Dragon Lady Fit
382 بازدید
382 بازدید
The U-2 Dragon Lady goes through Lockheed Martin Programmed Depot Maintenance (PDM) every 4,800 flight hours or every seven years. PDM involves the complete disassembly, inspection, repair and reassembly of the entire aircraft; ensuring its longevity and ability to fly at today's record-high operational rates. This thorough maintenance allows Lockheed Martin to collect data on airframe integrity,
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