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Old January 8th 07, 03:38 AM posted to rec.aviation.piloting,sci.space.history,sci.space.shuttle
Taylor[_1_]
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Default Why does the shuttle throttle on ascent?

Pat Flannery wrote:



Mxsmanic wrote:

The foam does the damage because of the high speed that it has when
it hits the shuttle.

If there was no drag, the foam would not hit with any force; it would
be going the same speed as the shuttle.

When a chunk of foam falls off, it is the drag of the stationary
atmosphere slowing the foam so effectively and rapidly, that causes
the relative closing speeds of the now nearly stationary foam hitting
the speeding shuttle.



That's what he said.


Actually, even with no atmosphere around the foam would still move
rearwards- because the Shuttle is still accelerating after it falls off.


The foam wouldn't move rearwords...the shuttle would move forwards.