Minimal Rocket

A derivation of the Estes Swift 220, this uses an 18mm engine with a fin-integrated launch lug. Easy to lose on larger engines. Print in bright colors for best chance of finding it. See printing details for assembly and flight. This version has somewhat better stability and fin size compared to my first version, though the first one did fly straight on a C6-5. Do NOT fly on powerful composite motors as fin flutter will break the fins off. Stick to black powder or equivalent.