I just saw an article over at parabolicarc about AJR's first 3d-printed thrust
chamber firing. I’m trying to decide whether, from what I’ve read, they’re
substituting copper for stainless in a few spots.
I think design changes are probably unlikely this early, but at the very least
the new manufacturing process opens up the way for different materials and more
elaborate cooling passages that wouldn’t be possible using the old tube
benders. Is anyone on this list privy to what sort of plans AJR has for higher
chamber pressures or other improvements to the RL-10? What’s the schedule for
doing complete engine certification?
Dave Klingler
