篮球论坛

Skip to Content Skip to Footer
BlueOrigin_BE4_hotfire
BE-4

America's next Rocket Engine

The first ox-rich staged combustion engine made in the U.S. will power two vehicles in the next generation of American orbital rockets.

BE-4 Engine

BE-4 is the most powerful liquefied natural gas (LNG) fueled rocket engine ever developed. Using an oxygen-rich staged combustion cycle, BE-4 is capable of producing 2,400 kN (550,000 lbf) thrust with deep throttle capability.

BE-4
Robust Design

We chose LNG because it is highly efficient, low cost and widely available. Unlike kerosene, LNG can be used to self-pressurize its tank. Known as autogenous repressurization, this eliminates the need for costly and complex systems that draw on Earth’s scarce helium reserves. LNG also possesses clean combustion characteristics even at low throttle, simplifying engine reuse compared to kerosene fuels.

篮球论坛BE-4 was designed from the beginning to be a medium-performing version of a high-performance architecture. It’s a conscious design choice made to lower development risk while meeting performance, schedule and reusability requirements. With our hardware-rich approach, multiple developmental units and redundant test stands enable a high test tempo and rapid learning.

BlueOrigin_BE4_hotfirealternate4

BE-4 In The Market

The first ox-rich staged combustion engine made in the U.S. will power two vehicles in the next generation of American orbital rockets.

Moving Towards Full Rate Production

BE-4 is currently undergoing full-scale engine development testing at our facilities in Van Horn, Texas. Full rate production will occur in our new engine manufacturing facility in Huntsville, Alabama.

Multiple Customers

Seven BE-4 engines will power New Glenn’s reusable booster, and two BE-4 engines will drive the first stage of United Launch Alliance’s Vulcan launch vehicle.

NBA论坛_篮球比分_NBA资讯_篮球直播 球探体育_篮球比分_足球比分_体育直播 NBA中文网_NBA直播吧_NBA录像_NBA直播_篮球直播吧 足球论坛_足球直播_足球资讯_足球比分 欧洲杯_足球比分_欧洲杯直播