zajímavá informace
dva BE-4 motory na novém Vulcan Centaur stupni
Now that is a beautiful sight! A pair of @BlueOrigin BE4 engines installed on a #VulcanCentaur booster for pathfinding operations in preparation for launch in 2021. #CountdownToVulcan!
Julia Bergeron na Twitteru píše:A peek at the Blue Origin #BE4 engines onboard the #VulcanCentaur Pathfinder as it rolls towards the gate at Cape Canaveral Space Force Station. Have you taken your booster for a walk today?