| 12. Dec 2009 @ 08:52 (bez virsraksta) |
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Mūzika: SWH Rock
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SR-71 Soars Over the Sierra NevadasAn SR-71B from NASA's
Dryden Flight Research Center in California slices across sky above the
snowy southern Sierra Nevada Mountains after being refueled by an Air
Force tanker in flight. Capable of flying at more than 2,200 mph and at
altitudes of over 85,000 feet, the plane is an excellent platform for
research and experiments in aerodynamics, propulsion, structures,
thermal protection materials, atmospheric studies and sonic boom
characterization.
Image credit: NASA
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