EDY is my project engine. Just like a car afficionado, I consistently make modifications to EDY2 to validate components like valves and inector geometries, and to gather experimental data on how different materials fare under high temperatures and pressures. I started developing EDY2 in the Summer of 2022 as a standalone project—I wanted to hotfire then engine and, frankly, move on. My ultimate goal for this engine changed when I began designing a new, more powerful biprop engine, Swordfish II-a. Instead of treating EDY2 as a separate undertaking, I am now using the thruster to build and test a home firing system. In short, EDY2 is building Swordfish's launch pad.