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How to not build a two stage model rocket
When engineering meets ambition… and occasionally, the ground
The process involves mixing the components in their stoichiometric ratio, then carefully melting, casting, and curing them into grains—those little cylindrical packets of thrust that determine your burn profile. That makes it easy to design a system that simply triggers stage separation after a fixed time delay or at a certain altitude, based on predictable motor behavior. It was a simple, robust, and lightweight recovery system that worked just as planned—no pistons, no CO₂ canisters, just good old mechanical ingenuity and a bit of gunpowder magic.
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