Thread: Demo P-51 and Spitfire Top Speed
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Old 08-01-2009, 08:24 AM
TexRoadkill TexRoadkill is offline
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If they fly at the same speed no matter what the altitude then they must be using true air speed. If it they were using IAS then you would probably see the speed closer to 400-500 mph when flying under 10,000 ft.
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