Brawny: Paper Towel Tube Model Rocket for D12 motors

Flying model rocket that uses a paper towel tube and 3D printed parts.

Wanted to make a paper towel model that can use D12 motors. Since the paper towel is not very long and the fin can is heavy, it uses 5 large fins to ensure stability.

Flight Test Info:
2026-02-21 D12-3, 186g
2026-03-01 D12-3, 204g, 599 ft (JLogic Alt 2)
2026-04-12 C11-3, 188g, 209 ft (JLogic Alt 2)
2026-04-12 C6-3 (With 18to24 adapter), 188g, Windy day and gust at takeoff made it go unstable. This motor only provides a 3.2 T/W
2026-04-12 C6-3, (With 18to24 adapter), 188g, Tried again during a wind lull. Still had large tipoff from 3/16 Rod. Decided not to recommend use of this motor.