Yes, let’s keep using them:
In this case, the DM series motors passed all of ATK’s and NASA’s inspections and test firings. It wasn’t until ATK was proceeding toward QM series motor segments that NASA requested more thorough inspections of the QM series motors to determine whether the switch to non-asbestos containing insulation liners was having a previously unseen effect.
“The beauty of the solid rocket motor inspection system is that defects will be found and solutions reached to ensure the motors delivered will perform with the highest reliability,” said Reed. “This is a requirement to ensure SLS is a safe and reliable system for human exploration of deep space.”
Yeah. Right.
[Update a few minutes later]
So we have giant SRBs with persistent unpredictable dangerous defects+massive political pressure to get to launch. What could go wrong? #SLS
— Trampoline Rocket (@TrampolinRocket) September 15, 2014
Ya but Rand … you are forgetting … the DO have …
Michoud proudly reveal monster welder for SLS cores
http://www.nasaspaceflight.com/2014/09/michoud-monster-welder-sls-cores/
The MONSTER WELDER!
Sounds like a scifi movie from the 50’s. “Attack of the 50 meter welder”
The problem with having dozens of voids in a segment is that they might dampen some of the noise at lift off, and that might make the rocket not quite loud enough to complete its important mission of doing something in deep space.
No, the real problem with too many voids in an SRB is that all of the noise may get released in one brief and very loud instance.
But louder is better! That’s why the SLS is more awesome than the Saturn V. Well, that and the giant welder.
“Sounds like a scifi movie from the 50’s. “Attack of the 50 meter welder” ”
Not saying the obesity situation is completely out of hand, but there are some small-town bars here in ‘Sconsin where I can introduce you to a 50 meter welder.
I think they have a special aisle at Walmart . . .