A conventional but slightly smaller helicopter style tourbillion, 1/4" ID, 2" long using a Pyrotube casing. Fast 6:1:1 BP propellant with blackmatch fuse and bamboo stabilizer stick.
Worked great!
Unlike many other 1/4" helicopters I've made this one actually flew quite high.
Unfortunately I could not find the expended device.
title | type | size |
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Test Video | video/x-msvideo | 3.998 Mbytes |
Pre-Test Picture | image/jpeg | 24.115 kbytes |