"Blueskies" wrote in message
. net...


snip

Yes, the aerodynamic loads are highest early in the flight so the engines
are throttled then back up. The shuttle rolls
over on its back to fake the occupants into feeling 3 gs when in fact the
vehicle is pushing 4 gs....



For some time now the shuttle rolls to heads up well before 3 G throttling.
This is done so the antennas can communicate with the TDRS satellites.

Danny Deger