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replied 2392d
where does the 4000 F number come from? & 1-2 hours for re-entry?
replied 2392d
That is a good start. Or you can judge by the color of meteorites.
replied 2391d
seems like it takes 12-17 minutes not 1-2 hours. & the whole craft isn't at 4000F just the front. if that, can't find a source for that.
replied 2391d
Too short. Calculate the acceleration if this was so.