4 ms·

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 hav

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

panick21_ 3y 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.
- dotnet00 3y ago
  That's a pretty convenient goalpost to move to. Raptor also is only theoretically reusable by that metric.
  - Teever 3y ago
    it's not goalpost shifting at all. BO doesn't have a reusable engine until they demonstrate that their engine is reusable.