[itishappy]

It doesn't remove fuel entirely, they still need an engine to circularize their orbit.

> The velocity boost provided by the accelerator's electric drive results in a 4x reduction in the fuel required to reach orbit, a 10x reduction in cost, and the ability to launch multiple times per day.

https://www.spinlaunch.com/orbital

Their promotional video shows this at around the 20s mark.

https://www.youtube.com/watch?v=TGO4LtCctTk

[Mistletoe]

I think it's a cool idea. What increase in G's are we talking about launching things this way?

[itishappy]

SpinLaunch: ~10000G

Rocket: ~5G

So roughly 3 orders of magnitude.

[Mistletoe]

Wow are there issues with making things like chips that can even survive that? I remember when I was a scientist and 10,000g was some very high speed centrifuging that you better make sure everything like even glass and plastic can handle.

[rbanffy]

> SpinLaunch: ~10000G

I admit I was surprised people were able to build hardware that survived that.