Jet Nozzles render in Blender 3D 4.2 using EEVEE (seems to be buggy in Cycles). File is free for use (MIT License) on GitHub.
I am a fan of NASA and Space. A reminder that as we catapult the future forward, we capitalize on colors, colors like the color orange for prison jerseys, parking cones, and even jet nozzles.
Worth investing in a future with better paths forward for all people.