Why does the shuttle throttle on ascent?

Absolutely correct!

Bud



On Jan 8, 6:00 pm, "Greg D. Moore \(Strider\)"
wrote:
"Blueskies" wrote in odigy.net...







"Tim Rogers" wrote in message
...
:
: "Blueskies" wrote in message
.net...
:
: "Danny Deger" wrote in message
: ...
: :
: : "Danny Deger" wrote in message
: ...
: :
: : Why does the shuttle throttle to 3 Gs on ascent?
: :
: :
: : The 3 G throttling is done late in the flight (about 7:30)and has
: nothing to
: : do with dynamic pressure. It was designed in to allow "regular"
people
: fly
: : the shuttle.
: :
: :
:
: 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....
:
: No.
: The 3 Gs is at the backs of the occupants (and along that same axis for
the
: vehicle.) This is the same if they are heads up or heads down.
: If you lie with your back on the floor, you feel the same 1 G if your
head
: is facing north or south.
:
: Tim
:
:

Not talking about facing north or south, they're talking about hanging
from your feet or standing upright...Considering the velocity vector is forward, it still doesn't really matter
which way they are.



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