Blue Origin Nears Flight Test Certification for BE-4 Rocket Engine
The Blue Origin BE-4 might get certified for flight tests by December of this year. It is about 5-6 years late for an original 2017 planned operational date. The BE-4 engine project started in 2014. It would be the most powerful liquefied natural gas (LNG) fueled rocket engine ever developed. Using an oxygen-rich staged combustion…