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0 pointsdotnet002y ago0 comments

The reusability on BE-4 is not theoretical.

Yes, the ones flown on Vulcan do not do relighting. However, we do know of engines BO has test fired where they have tested restart capability.

https://twitter.com/blueorigin/status/1521204214084796416

0 comments

panick21_2y ago

Many engines that are not reusable can be started multiple times. Actually having the certification that you can relaunch with the engine after you have done a reentry and landing is required.

dotnet00OP2y ago

That's a pretty convenient goalpost to move to. Raptor also is only theoretically reusable by that metric.

Teever2y ago

it's not goalpost shifting at all.

BO doesn't have a reusable engine until they demonstrate that their engine is reusable.

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