BE-7

Blue Engine 7
Country of originUnited States
ManufacturerBlue Origin
ApplicationAerospace
StatusActive
Liquid-fuel engine
PropellantLOX / LH2
Performance
Thrust10,000 lbf
Throttle range40–100%
Used in
Blue Moon

The Blue Engine 7 is a liquid hydrogen/oxygen dual expander cycle engine for use with the Blue Moon family of lunar landers. The company utilizes additive manufacturing in the development process and it is meant to generate 10,000 lbf (4.5 tf) of thrust, serving as both the ascent and descent engines for Blue Moon.[1][2]

History

Following the commencement of the Artemis Program the company sought to independently develop a lunar lander, the 'MK1' and accompanying engine. The BE-7 test phase began in 2019 with additional hot fire testing in 2020 at the Marshall Space Flight Center.[3] Following selection for NASA's second Human Landing System, which Blue Origin calls 'MK2', the company announced that the BE-7 engine will be used for both landers.[4] A demonstration flight of the MK1, planned for 2025 is on track and will debut the BE-7 engine.[5][6] In 2024, the company announced vacuum cell testing was being conducted on the engine at the Edwards Air Force Base.[7]

Technical specifications

The BE-7 utilizes liquid hydrogen and liquid oxygen propellants in a dual expander cycle generating up to 10,000 pounds-force of thrust which can be throttled to 2,000 pounds-force. The company hopes that the propellants can, in the future, utilize ISRU and be produced from ice in the polar regions of the moon. It will also be used to power the transfer element, the Cislunar Transporter in development by Lockheed Martin.[8]

See also

References

  1. ^ Kuhr, Jack (2024-03-06). "Blue Origin's 2025 Lunar Landing Goal". Payload. Retrieved 2024-06-22.
  2. ^ Parkins, Alison (2023-10-04). "Alumnus builds the 'infrastructure of the future' at Blue Origin". UW-Platteville News. Retrieved 2024-06-22.
  3. ^ Foust, Jeff (2020-12-04). "Blue Origin continues work on BE-7 lunar lander engine". SpaceNews. Retrieved 2024-06-22.
  4. ^ Foust, Jeff (2023-05-19). "Technical strengths and lower cost led NASA to select Blue Origin lander". SpaceNews. Retrieved 2024-06-22.
  5. ^ Kuhr, Jack (2024-03-06). "Blue Origin's 2025 Lunar Landing Goal". Payload. Retrieved 2024-06-22.
  6. ^ "U.S. Sets Stage For Economic Expansion Into Cislunar Space | Aviation Week Network". aviationweek.com. Retrieved 2024-06-22.
  7. ^ "Here's a BE-7 engine headed into vacuum cell testing in a simulated space-like environment at Air Force Research Laboratory, Edwards Air Force Base, CA. BE-7 generates 10,000 lbf of thrust and powers our Blue Moon MK1 and MK2 lunar landers".
  8. ^ "Lockheed Martin on Blue Origin's National Team Selected to Develop Human Lunar Lander". Media - Lockheed Martin. Retrieved 2024-06-26.

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