Questions tagged [be-4]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
4 votes
0 answers
260 views

Blue Origin's BE-3PM Engine: 18-100% Throttle Range, How?

Blue Origin says the BE-3PM engine in its New Shepard vehicle can throttle down to 18% max thrust. Compare to 57% for the Merlin 1D engine in stage 1 of SpaceX's Falcon 9 (and to 39% for the Merlin ...
user avatar
3 votes
1 answer
1k views

Blue Origin BE-3/BE-4 Specific Impulse?

Wikipedia lists 490 kN (110,000 lbf) thrust for BE-3 at sea level and 710 (160,000 lbf) kN in vacuum. BE-4 is listed at a stupefying 2.4 MN (550,000 lbf) at sea level. But no numbers are given for ...
user avatar