Also, be sure to remember one key fact: The moon is 1/6 the size of the
earth.....yet farther away.


:B


"Mikepier" wrote in message
ups.com...
I think Dean hit it right on the money. I would just like to add take
into account the drag coefficient for the earths atmosphere on re-entry
will exponentially increase for every mile of descent. Just factor this
into your equation and you should be fine.