as a two stage rocket.
booster 24mm, sustainer 18mm
surprisingly, no nose weight was needed. maybe because i built it VERY light! you can see there's barely enough paint to cover the balsa...it has flown on as little as C11-0 --> A8-3, and as much as D12-0 --> C6-5
it's one of my favorites!
1/4" lug/launch rod keeps it on track!