Reaction Engines completes further validation of SABRE technology

Background
The advanced hydrogen preburner is a lean-burning hydrogen combustor. In SABRE it provides heat energy to the engine cycle at take-off and early flight. The HX3 is a microtube heat exchanger that connects to the preburner and exchanges heat between combustion gas and helium.

The advanced hydrogen preburner and HX3 together provide the heat source […]