I would like to see this succeed, and after seeing this video I have a bit more optimism, but it's still a lot of hurdles to overcome. And if they have an accident (release timing error > 1ms), will do major damage to their launch chamber, probably taking months of repairs to recover from. Whereas SpaceX is almost proud of their rocket failures...

I was pessimistic a few months back, after seeing Thunderfoot's "busted" videos about Spinlaunch: https://www.youtube.com/watch?v=9ziGI0i9VbE ; https://www.youtube.com/watch?v=ibSJ_yy96iE ; but his analysis is much more "armchair" whereas Brian was actually there on-site and has more (previously unpublished) information.

Scott Manley also did a video about it: https://www.youtube.com/watch?v=JAczd3mt3X0&t=4s
but it's more of a "how it works" and has a lot of overlap of info with the above Real Engineering video.

SpinLaunch Engineering Doc - Throwing Satellites into Space? has been added as a related post - related requested by eric3579.

*related=https://videosift.com/video/SpinLaunch-Engineering-Doc-Throwing-Satellites-into-Space

Can Spinlaunch throw rockets into space? has been added as a related post - related requested by eric3579 on that post.

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Understanding spinlaunch