Spinlaunch Plans on Throwing Satellites into Orbit

This video from the YouTube channel Interesting Engineering describes the plans for a very remarkable satellite launch system developed by Spinlaunch, a company I really don’t know anything about. It seems from this video that they’ve built a 157 metre vertically inclined centrifuge as a precursor for one they hope to build, which will be three times larger and used as a satellite launch system. Instead of sending satellites conventionally into space with rockets, the Spinlaunch system will throw them into space instead. The full size system will also use rockets, although they will only fire at an altitude of 61 km above the Earth to place 200 kilo satellites in orbit. The video looks forward to the new system being more sustainable and ecologically friendly than conventional launch systems.

It’s an interesting concept, and the idea of throwing vessels into space I think goes right back to Robert Goddard, the founder of American rocketry. From childhood Goddard wanted to send people to Mars, hence his determination to develop the technology to get people into space. Before settling on rockets, Goddard apparently thought about devices to throw ships into space. And there are indeed a number of problems with using rockets as launch systems. Space and Futurism YouTuber Isaac Arthur, in his video about spaceports, points out that currently launch sites have to be sited well away from any cities because of the sheer noise and power of the rockets. It’s possible that the Spinlaunch system may be able to solve this problem if such centrifuges are quieter than rocket engines. Glancing down the internet entries for similar videos, it seems that not everyone is impressed with the company’s claims. Atheist science vlogger and anti-feminist Thunderfoot has put up a video which suggests that he’s busted their claims. Other space vloggers, like Scott Manley, seem much more impressed with them, and the blurb for the video states that it’s been successfully tested. I honestly don’t know if the idea will work in practice, but it’ll be interesting to see if it ever takes off (pun intended).

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