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6 votes
2 answers
616 views

How do spherical SRB's compare to long skinny ones? What do their thrust curves look like?

Most SRBs are long and skinny, probably because most are used low in Earth's atmosphere where aerodynamic drag is large. But here are some very short SRBs, one seemingly spherical except for the ...
uhoh's user avatar
  • 149k
4 votes
1 answer
972 views

How are SLS SRBs considered man-rated?

Using solid rocket boosters on a manned launch comes with some additional risks because they can't be turned off or throttled down once lit. For the Shuttle this created some additional failures modes ...
SafeFastExpressive's user avatar
9 votes
4 answers
5k views

Why were Solid Rockets chosen for the SLS

The SLS and the STS seem to be the only rockets utilizing SRBs... Why did they choose to go with them over LH/LOX or Kerosene/LOX? Wouldn't it also be easier to upgrade those rockets in the future?
Furphy's user avatar
  • 101
15 votes
2 answers
2k views

How were vibrations supposed to be handled in an Ares I?

The basic concept of an Ares 1 consisted of a five-segment SRB and some liquid-fuelled upper stage. The SRB was derived from the four-segment Space Shuttle SRBs. A similar concept was later promoted ...
s-m-e's user avatar
  • 6,461