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Model rocket enthusiasts are learning how to do vertical landings
What goes up now comes down without a crash.
Using a combination of 3D-printed and machined metal parts, Barnard also developed a way to control the amount of thrust produced by solid-fuel rocket engines, which don’t have an off switch once ignited. Kapoor’s rocket uses the same thrust vectoring approach as Barnard’s but uses flight data from a barometer and an accelerometer to accurately determine when a second engine needs to fire to ensure a safe landing. They don’t retract, but each one cleverly uses a plastic syringe attached to rubber bands to absorb the impact of a rough landing, improving the chances of the rocket remaining upright.
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