Feb 26, 2016 · BE4 is our primary path because it started first, is fully funded, and Blue has signed up to our target cost. AR1 is our back up because engines are complicated, risky, and BE4 will be the …

Sep 27, 2018 · BE-4 Reverse Engineered With the available data on the BE-4 sea level engine, I have reverse engineered some other likely performance numbers. The performance numbers are based …

Jan 8, 2024 · Raptor vs. BE4 Thread Well the NASA has the famous idea, KISS!!! that gived soo many exist in the past... SpaceX triumph with a very basic architecture with the Merlin engine, gas …

Jan 9, 2024 · Raptor vs. BE4 Thread Well, the 0 SRM configuration can't lift off with full tanks, but... BE-4 is not Vulcan. Vulcan is an EELV. BE-4, with Vulcan, is now operational. Congratulations to both …

May 2, 2022 · You asked for video – we listened. Notable milestones for this #BE4 test included: 🔥Warm LOX/cold LNG start transient demonstration (bounding condition) 🔥First engine to eclipse 4000 …

Mar 1, 2019 · Raptor vs. BE4 Thread For a booster engine maybe not reaching ISP isn't too bad, but for a vacuum engine it would seem to be more important. Thanks for the answers. I know BE-4 is a …

May 22, 2023 · Raptor vs. BE4 Thread Launching DoD payloads does not mean ceasing development. We saw that in action with Falcon 9 - the first DoD launch was on a Falcon 9 FT, yet the engines and …

Jun 12, 2023 · Raptor vs. BE4 Thread Let's make an example calculation, I could not find any exact values for Vulcan so I make numbers up as best guesses Let's say wet mass of Vulcan Centaur at …

Jan 10, 2024 · Raptor vs. BE4 Thread You are too generous. I do not think launches of sub-orbital toys counts. Mathematically, that puts us into zero divided by anything is zero and dividing by zero is …

Feb 25, 2019 · Raptor vs. BE4 Thread What is actually known about the BE-4 and its testing so far? i.e. what specifically has Blue tested? When they had their testing mishap, it was stated that power …