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This whole Monster discussion got me wondering what kind of spin would happen if a Koenig fired off a railgun while floating in space. I haven't taken a physics class in over a decade so this was a nice stretch, though I'm sure I screwed up somewhere.
First of all, I'm not sure where the .003s Haesslich used in his calculations came from... I assumed that with a 41m barrel, to go from 0 to 5812m/s, plug into F = mv^2/(2d) gives me 206,000kN or about a fifth of Haesslich's number. The time it would take came out to be about 0.014s (using t=2d/v). So definitely same ballpark, though not as nice a number as 1 000 000kN.
Then approximating the the Monster as a 25m diameter 100ton sphere and assuming it was fixed in space at it's center of mass (which is impossible of course) I got about 54rpm from firing one gun. Pretty nasty, even if reality would be some fraction of that.
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