Re: gaetanomarano is once again showing his lack of basic knowledge

gaetanomarano wrote:
On Dec 26, 2:17 pm, behlin...@xxxxxxxxx wrote:

The Saturn IB second stage weighed 256k lb and the J-2 thrust was 225k
lb. There was also the Apollo spacecraft weight on top too

BOTH your example are WRONG since a second or third stage engine could
have a low thrust only if it burns at very high altitude when the
rocket has already reached a close-to-orbital speed, while, the Ares-1
SRB is jettisoned t 55 km. and lower speed, then, it needs a powerful
engine to reach the orbit, that's why the early CLV was designed
around the SSME

the problem is that a 5th segment "could" add more thrust (then,
"should" lift more upperstages' mass) but no more burning time nor
more speed, then, the Ares-1 2nd stage engine MUST have the SAME power
of an SSME to carry a 10 mT heavier upperstages' mass

Well, during these Christmas holidays, it's the spirit that counts.

You want problems? Try an SSME shredding itself to pieces at 8 gees.
.