ESA - 3D-printed storable-propellant rocket engine design tested

The recent hot firing of a full-scale rocket thrust chamber assembly takes us a step closer to proving 3D-printing for an engine design destined for rocket upper stages, in-orbit transportation applications (kick-stages and space-tugs), microlaunchers, and exploration spacecraft such as a lunar lander and ascent stage on the Moon.

Rocket Factory Augsburg talks reusability plans and 3D printing

Test Stands – Beyond NERVA

Fully 3D Printed Rocket Engine Tested

Solid rocket propulsion technology for de-orbiting spacecraft - ScienceDirect

Unveiling vehicles and technologies for future space transportation

Ariane 6: ESA Space Transportation Program - eoPortal

NeoFuels

PDF) Test Activities on Hybrid Rocket Engines: Combustion Analyses and Green Storable Oxidizers-A Short Review

How one rocket startup is developing 3D-printed rocket engines for testing

ESA - New test facility for Ariane 6 upper stage

Aerospace, Free Full-Text

3D-printed rocket fuel - Aerospace America