Science Fair Project Encyclopedia
X-42 Pop-Up Upper Stage
X-42 is the designation of a still-classified U.S. military space project. Specifications or photos of the program have not been released to the public, as a result not much is known about its goals. It is known to be an liquid fueled rocket capable of lifting a payload of up to 4000 lbs into Earth orbit.
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Related development:
Comparable aircraft:
Designation Series: X-39 - X-40 - X-41 - X-42 - X-43 - X-44 - X-45
See also:
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details