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kleinbl00 · 1095 days ago · link · · parent · post: SpinLaunch conducts first test of suborbital accelerator at Spaceport America
so holy shit y'all - the accepted rotational velocity of a frisbee is like 2300 RPM - the accepted rotational velocity of a discus is like 400 RPM - the accepted rotational velocity of a clay pigeon is 2-3000 RPM So while I'm keenly uncomfortable with the idea of a lawn dart spinning through the sky at 146 Hz is 8700 RPM, I'm 100% A-OK with a frisbee doing 2300. So... maybe the difference between the lawn dart's suicidal urge and the lawn dart's reasonable behavior is the aerodynamics of the lawn dart. This does not portend well for the rest of the math.