3 ms·
Checking: it's 6 tons dropped 2 meters to launch a 100kg payload. If straight up, it could go 6000*2/100 or 120 meters. Visualize a launch for range vs. for hei
by abecedarius 2y ago
Checking: it's 6 tons dropped 2 meters to launch a 100kg payload. If straight up, it could go 6000*2/100 or 120 meters. Visualize a launch for range vs. for height, and guess it can go roughly twice as far horizontally as up.
(The OP ends up at 210 meters.)
- DoctorOetker 2y agothe ideal angle for maximum horizontal displacement is 45 degrees
- n4r9 2y agoAssuming zero windspeed, I assume?
- 4gotunameagain 2y agoNo, assuming zero air whatsoever :). With drag, it is less than 45 degrees. Source: I once upon a time ran a simulation because I was curious. The magnitude of the offset from 45 degrees scales with drag coefficient & frontal area
- abecedarius 2y agoYep. But calculating what horizontal distance that implies, in your head, doesn't seem trivial the way my note above was.
- abecedarius 2y ago(I think the difference between the OP's calculation and my estimate all comes from their 80% efficiency vs. my assumption of 100%. My 'roughly' twice as far as high is actually exact under ideal assumptions. Where the slope of the inverted parabola is -1, the chord is 4 times the height, but in this parabola only half of the launch energy goes into upward motion, accounting for the other factor of 2.)