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Old 07-08-2017, 11:36 AM
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tbzep tbzep is online now
Dazed and Confused
Join Date: Mar 2005
Location: TN
Posts: 8,771

Originally Posted by Newbomb Turk
I was thinking the same thing SEL was: no ejection charge. How could that possibly work?

It will eject to some extent, but it won't forcefully enough to have successful recovery on all models. Bob Kaplow used zero delay in SuperRoc before it was quickly outlawed. I wouldn't try it on a model that I spent a lot of time making look good.

Remember that the propellant breaks through before all of it is burned. Hot gases and small bits of BP blow forward to ignite the upper stage. This can sometimes create enough pressure to blow a nosecone, but sometimes it isn't enough to get the recovery system to follow. Centuri's Pass-port staging system was designed to vent the pressure so it wouldn't pop stages apart before ignition.
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