Talk:Sub-orbital spaceflight  From Wikipedia, the free
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(Rated Start-class, Top-importance) Checklist icon  I'm
confused...[edit]  So any vehicle that travels higher than 100
km yet slower than orbital speed is said to be in Sub-orbital
spaceflight.  I don't understand why it is slower than orbital
speed. According to the definition of the Karman line, shouldn't
it be faster ? In fact, are suborbital flights such as those
performed by SpaceShipOne slower or faster than orbital speed ?
--Scroteau96 21:28, 25 February 2007 (UTC)  Suborbital flights
are almost always slower than orbital speed. SpaceShipOne was
much slower than orbital speed. If you can achieve orbital speed
(which is very expensive), then you might as well inject into
orbit, otherwise you have wasted a lot of money. Charles 16:09,
25 March 2007 (UTC) The only known cases of suborbital flights
exceeding orbital velocities were mission failures, e.g.
Pioneer-1. Nobody intentionally fl