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Old 10-16-2017, 09:49 PM
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LeeR LeeR is offline
Retired with Way Too Many Kits
 
Join Date: Jun 2007
Location: Colorado
Posts: 3,222
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Quote:
Originally Posted by Jerry Irvine
Describe to me what those (BT-20 Tough Tubes) are.


They look like the old Estes couplers — tough black paper. I think it’s called fishpaper?

I bought a bunch a few years ago. I don’t do that many 18mm scratch-builds, but they make great motor tubes.
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Lee Reep
NAR 55948

Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor
In the Paint Shop: Nothing! Too cold!
Launch-Ready: Farside-X, Maxi Honest John, Super Scamp
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