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X-15 vs SpaceShipOne
Could the X-15 have exceeded the altitude performance of
SpaceShipOne The X-15 flew to 354,200 ft, according to http://www.dfrc.nasa.gov/Gallery/Pho...EC68-1889.html SpaceShipOne flew to about 337,500 to 345,000 feet in September (two numbers for the same flight; I'm not sure what the most authoritative figure is for their actual altitude). And 328,491 in June ( http://spaceflightnow.com/ss1/040621launch.html ). There were references in the latter article to a planned altitude of 360,000 feet, which I guess was also the plan for September ( http://spaceflightnow.com/ss1/status.html entry dated 1834 GMT) So I guess SpaceShipOne's altitude might be a tiny bit higher than X-15's was, but not by much. |
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