BE-4 is the most powerful liquefied natural gas (LNG)-fueled oxygen-rich staged combustion engine ever flown. BE-4 is capable of producing 550,000 lbf (2,450 kN) thrust with deep throttle capability. We chose LNG because it is highly efficient, low cost and widely available. Unlike kerosene, LNG can be used to self-pressurize its tank.

The BE-4 (Blue Engine 4) [5] is an oxygen-rich, [6] liquefied-methane-fueled, staged-combustion, rocket engine. It is produced by Blue Origin. BE-4 was developed with private and public funding. [7] The engine produces 2,400 kilonewtons (550,000 lbf) of thrust at sea level. [8]

2025年2月4日 · Blue Origin announced today the completion of more than 100 staged-combustion tests in development of the American-made BE-4 engine. The test series achieves a key milestone in engine development, providing measurable performance data in advance of the upcoming Critical Design Review.

2023年7月11日 · The BE-4 — the engine that will power Blue Origin's New Glenn rocket and United Launch Alliance's (ULA) Vulcan Centaur — exploded about 10 seconds into the test, which Blue Origin conducted at...

The BE-4 is an American-made liquid rocket engine currently under development by Blue Origin for orbital launch vehicle boost applications. The BE-4 uses liquid oxygen (LOx) and liquefied natural gas (LNG) – a commercially available form of methane – to produce 550,000-lbf thrust at sea level. Fully Funded Commercial Partnership

2024年4月1日 · The BE-4 is a liquid oxygen and liquefied natural gas (LNG) fueled rocket engine that generates 550,000 pounds of thrust at sea level. It is designed to be highly efficient, with a specific impulse of 310 seconds at sea level and 340 seconds in vacuum.

2023年7月11日 · Jeff Bezos’ Blue Origin space venture confirmed that one of its BE-4 rocket engines suffered a significant anomaly during testing at its West Texas facility in late June. The incident first came...

2017年10月19日 · Blue Origin, in a tweet, said its first hotfire test of the BE-4 engine was a success. The company included a six-second video, taken from several angles, of the engine firing on a test stand,...

2022年9月19日 · Using an oxygen-rich staged combustion cycle, BE-4 is capable of producing 2,400 kN (550,000 lbf) thrust with deep throttle capability. The ULA (United Launch Alliance) Vulcan rocket plans to use the BE-4 engine and Blue Origin has designed a Falcon Heavy class New Glenn rocket to use BE-4 engines.

2024年12月22日 · One program is testing full-scale versions of the BE-4 powerpack, the set of valves and turbopumps that provide the proper fuel/oxidizer mix to the injectors and combustion chamber. The second program is testing subscale versions of the engine's injectors.