Nice!

The text for the Pyro Creations units notes a '7/8" hole.' So, not a BT-40 sized fin? (Unless the "small" unit is actually for 3/4" tubes, which they sell!)

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NAR #27085 - Oregon Rocketry - SAM

https://www.skylighter.com/collecti...odel-rocket-kit

Dave F.

That Skylighter kit definitely violates the NAR safety code.
Naturally my attitude to that is "Big Deal !"

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !

Bt40 is 3/4 on the inside. So it should fit. Maybe a little loose. The original tubes weren’t necessarily as properly round. I’ll check my Quest repro Aerobee Hi when I get home.

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Roy
nar12605