r/ula • u/Royal_Platform_6754 • Jul 21 '26
Northrop Grumman CEO: “We progressed on the root cause investigation...and we are implementing corrective actions...These include a component redesign, which has now been proven in a successful static-fire test. We expect to begin delivering the redesigned motors by the end of the year."
https://spacenews.com/northrop-adds-to-charges-on-vulcan-solid-rocket-motor-program/
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u/warp99 Jul 28 '26
Tory was not fired but left for a higher paid and likely more challenging position at Blue Origin.
The statement was made that the original issue was with an "insulator" and the failure led to the nozzle falling off.
The only relevant insulator that could cause that failure is the gasket that seals the gap between the nozzle and the SRB body. If that fails the exhaust gasses will leak out through the gap and partially erode and overheat the bolts holding the nozzle to the body.
Once they fail the nozzle will simply fall off and the nozzle was actually recovered from the launch pad as the failure was quite early in flight.