I don't have time to verify the video at the moment, but I believe this is them testing said engine 60 years ago: https://www.youtube.com/watch?v=GmxPRCyR-Co ht

I don't have time to verify the video at the moment, but I believe this is them testing said engine 60 years ago: https://www.youtube.com/watch?v=GmxPRCyR-Co https://www.youtube.com/watch?v=GmxPRCyR-Co