First hotfire of our BE-4 engine is a success. Huge kudos to the whole @BlueOrigin team for this important step! #GradatimFerociter pic.twitter.com/0gk6k6WuPx
— Jeff Bezos (@JeffBezos) October 19, 2017
Blue Origin just shared some photos of the BE-4 hot fire test. 🔥 🔥 pic.twitter.com/iYIyXH5DQI
— Eric Berger (@SciGuySpace) October 19, 2017
New test video of Blue’s 550K lbf thrust, ox-rich staged combustion, LNG-fueled BE-4 engine. The test is a mixture ratio sweep at 65% power level and 114 seconds in duration. Methane (or LNG) has proved to be an outstanding fuel choice. @BlueOrigin #GradatimFerociter pic.twitter.com/zWV0jWXIvx
— Jeff Bezos (@JeffBezos) March 13, 2018
Off we go. @blueorigin First Flight FE1 engine off to Texas for a quick acceptance test firing, then on to the Rocket Factory in Decatur. #Vulcan. pic.twitter.com/WtoIfJVlxZ
— Tory Bruno (@torybruno) July 30, 2022