MiLESTONE: Successful fire of our E-1 bi-metal highest performance 3D printed 🚀 rocket engine. No thermal expansion or bonding issues. Copper alloy liner printed by @3TRPD on @EOSGmbH M290. Inconel spray coating by Hitemco. #teamwork #performance #copper #3Dprinted pic.twitter.com/AwNAIVOGpR
— LAUNCHER (@launcher) November 30, 2018