Reply to post: Compare with Raptor not Merlin

Jeff Bezos fires off a blue dart, singes Elon Musk and SpaceX

Stephen Booth

Compare with Raptor not Merlin

The real comparison with SpaceX hardware is with the new Raptor engine not the production merlin.

Raptor uses the same fuel as BE-4 and is at a similar stage of development (Raptor first test fire was last year)

It does look like Space-X have dialed back their target thrust for the Raptor so current indications is the BE-4 is the larger engine but this is the first test-fire it is almost certainly not running at full design power yet. They probably do have to come close to their target because they don't have the flexibility that SpaceX has to redesign the rocket.

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