Engine 2 - 600lbf Nitrous/IPA Liquid Rocket Engine

This is my second rocket engine developed as Liquid Propulsion Lead at HAP (Hornet Aerospace & Propulsion). It is designed to produce 600 lbf, at 600 psi. This project was started in the Spring 2025 semester, and was hot fired for the first time on Jan 3, 2026. Issues with electronics and feed system caused the engine to be unable to sustain combustion. Specific issues experienced were GN2 leaks during tank pressurization and unreliable valve control due to water getting in electronics. An extreme ice buildup was observed on the engine during oxidizer load, which is believed to have melted and flooded the igniter during the ignition sequence. These issues will be solved and more testing will follow.

An old version of the CAD is shown below.

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Comparison of injector for engine 1 (bottom) and injector for engine 2 (top)

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Holding injector partially assembled

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Installing o-rings

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O-rings getting destroyed during installation... oops

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Getting ready to water-flow valves to verify Cv

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Working on electronics for TVC linear actuators

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Printing various designs to check snap ring fit

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Getting engine and feed system ready for testing at FAR

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Part of the math to determine injector face thickness.

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