section_path: Rocket engines/BE-3 (BE-3U and BE-3PM)
section_name: BE-3 (BE-3U and BE-3PM)
paragraph_text: BE-3 (BE-3U and BE-3PM)
  
  The BE-3 is a family of rocket engines made by Blue Origin with two variants, the BE-3U and BE-3PM. The rocket engine is a liquid hydrogen / liquid oxygen (LH2/LOX) cryogenic engine that can produce 490 kN (110,000 lbf) and 710 kN (160,000 lbf) of thrust, respectively. Early thrust chamber testing began at NASA Stennis in 2013. By late 2013, the BE-3 had been successfully tested on a full-duration sub-orbital burn, with simulated coast phases and engine relights, "demonstrating deep throttle, full power, long-duration and reliable restart all in a single-test sequence." NASA has released a video of the test. As of December 2013, the engine had demonstrated more than 160 starts and 9,100 seconds (2.5 h) of operation at the company's test facility near Van Horn, Texas.