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iirc only 3 ignite for the landing burn, those engines are freaking monsters. I love how small they are, the latest Raptor revision is so slim and compact. The power density is just mind boggling.

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You can see for yourself in the video - all 13 center engines attempt to light, and all but one do so.

Similar to ship, they start up more engines than needed in case a few fail, then immediately shut down the extra engines.

Where is this visible in the video? EDIT: oh wait is it the diagram in the bottom left?

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