3 ms·
Wouldn't you have to re-fuel the tube each time? Presumably this would cost more than $100... and how would this work in reverse to slow down? I would think (
by Groxx 13y ago
Wouldn't you have to re-fuel the tube each time? Presumably this would cost more than $100... and how would this work in reverse to slow down?
I would think (probably incorrectly, since I know next to nothing about it) that a ram-based system would inherently have combustion primarily behind whatever tightest-seal exists that's bringing the gasses up to combustion temperature, since doing so would also mean the expansion pushes forward against that seal. Or does simply sealing a bit better cause combustion in front of the seal?
- rdl 13y agoActually I didn't think as much about how to do deacceleration correctly; you wouldn't be able to just flip it around and do ramjet-style, you'd have to use a progressively more sense fluid to fill the tube, which would create a lot of heat. You could still do braking over a hundred miles, progressively, though. The main goal (vs. a regular cannon) would be to spread the impulse over a long acceleration area, not all at once like with an explosive-powered gun. People would probably be happiest with <1G.