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I'm thinking ahead to a 4" OD HPR two stage design. Problem is, I'm not really sure about the changes in construction techniques needed to couple the booster to the sustainer. I doubt that Estes Pop and Go type coupling will work (I know that electronics are necessary for second stage ignition).
Anybody got a link to a HPR two stage kit's instructions (or a link to a build thread for someone's scratchbuild)?
Thanks!
Jim
Anybody got a link to a HPR two stage kit's instructions (or a link to a build thread for someone's scratchbuild)?
Thanks!
Jim