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Post by Vinny on Oct 31, 2024 14:45:40 GMT
Still need something to charge the equipment with.
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Post by Vinny on Oct 31, 2024 14:46:57 GMT
Nuclear power station as close to the launch site as is safe, to reduce impedance and maximise energy efficiency. I mean the power to the IC Solid state batteries and solar arrays. |
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Post by Orac on Oct 31, 2024 14:58:59 GMT
Still need something to charge the equipment with. ..and the equipment needs to do something. an ic isn't really an entire machine that can do a job |
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Post by Vinny on Oct 31, 2024 15:10:25 GMT
Weather satellites, communication satellites, spy satellites.
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Post by Baron von Lotsov on Oct 31, 2024 15:11:28 GMT
Still need something to charge the equipment with. 1/2mv^2
Lets say your satellite is one kg as a nice round number. Escape velocity is 11km/s so 60.5 MJ which is not a massive amount of energy. The problem is more to do with how fast you can discharge it.
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Post by Orac on Oct 31, 2024 15:16:18 GMT
Weather satellites, communication satellites, spy satellites. all have bits and pieces all over them How well do you think a weather satellite would respond to being shot out of a naval cannon? |
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Post by Baron von Lotsov on Oct 31, 2024 15:44:16 GMT
Weather satellites, communication satellites, spy satellites. all have bits and pieces all over them How well do you think a weather satellite would respond to being shot out of a naval cannon? Indeed, and there is another problem. Stuff does not fly particularly well through an atmosphere made of air and gets rather hot. What with all the air resistance you would probably need to go a lot faster even than 11km/s. Meteorites go pretty fast. |
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Post by Orac on Oct 31, 2024 16:10:31 GMT
all have bits and pieces all over them How well do you think a weather satellite would respond to being shot out of a naval cannon? Indeed, and there is another problem. Stuff does not fly particularly well through an atmosphere made of air and gets rather hot. What with all the air resistance you would probably need to go a lot faster even than 11km/s. Meteorites go pretty fast. absolutely But bear in mind that the speed leaving the end of the railgun would have to be a lot higher than 11km/s (unless you intend to use rockets as well) |
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Post by Vinny on Oct 31, 2024 18:14:47 GMT
all have bits and pieces all over them How well do you think a weather satellite would respond to being shot out of a naval cannon? Indeed, and there is another problem. Stuff does not fly particularly well through an atmosphere made of air and gets rather hot. What with all the air resistance you would probably need to go a lot faster even than 11km/s. Meteorites go pretty fast. It would be housed in a discarding fairing. |
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Post by Baron von Lotsov on Oct 31, 2024 19:16:57 GMT
Indeed, and there is another problem. Stuff does not fly particularly well through an atmosphere made of air and gets rather hot. What with all the air resistance you would probably need to go a lot faster even than 11km/s. Meteorites go pretty fast. It would be housed in a discarding fairing. I think the main issue is the speed problem. The fastest wind tunnel in the world only goes up to Mach 30. Turbulent flow has a v^2 term in it. Weird shit happens at very high speeds and i don't think it is properly understood. |
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Post by Orac on Oct 31, 2024 19:48:28 GMT
It was only a speculative question by Vinny
However, i think it's non starter.
The muzzle velocity you would need to maintain escape velocity when you reached the upper atmosphere would need to be huge.
You notice that rocket launches only pick up speed when they get a bit of altitude (ie miles up). The losses are massive at low altitude
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Post by Vinny on Oct 31, 2024 20:09:17 GMT
The idea is to discuss the pros and cons, rip the idea to pieces if it's rubbish, but to have a fun discussion about the possibility.
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