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Chuck...
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Space Station Member  
Joined: Mon Dec 12, 2011 6:40 am
Posts: 341 Location: California and Michigan 
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 Chuck... Posted on: Fri Nov 23, 2012 9:12 amCould a very large and heavy weight drop down a track down a mountain, pulling a cable attached to a pulley that doubles or quadruples its movement on a different cable pulling something up a mountain, for long enough to reach a useful speed reliably, almost like a carriers launch cord, but much more Wiley Coyote.... then trigger liquid fuel rockets or solid etc.
_________________ Let not the bindings of society hold you back from improving it.... the masses follow where the bold explore. |
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Space Station Commander  
Joined: Mon Dec 18, 2006 11:15 pm
Posts: 598 Location: Columbus, GA USA
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Re: Chuck... Posted on: Fri Nov 23, 2012 5:23 pm Yes, but its easier and cheaper to just build a rocket that provides the same energy.
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Space Station Member
Joined: Mon Dec 12, 2011 6:40 am
Posts: 341 Location: California and Michigan
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Re: Chuck... Posted on: Fri Nov 23, 2012 5:41 pm Yes, but can you reload the rocket with reusable green energy? And how is a rocket less expensive?
_________________ Let not the bindings of society hold you back from improving it.... the masses follow where the bold explore. |
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Space Station Commander
Joined: Mon Dec 18, 2006 11:15 pm
Posts: 598 Location: Columbus, GA USA
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Re: Chuck... Posted on: Sat Nov 24, 2012 1:39 am You can buy a lot of rockets and their propellants for the price of a hundred kilometer long/tall Rube Goldburg catapult/trebuchet contraption.
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Space Station Commander 
Joined: Wed Aug 18, 2004 8:47 am
Posts: 517 Location: Science Park, Cambridge, UK
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Re: Chuck... Posted on: Mon Nov 26, 2012 11:22 am Sigma wrote: Yes, but can you reload the rocket with reusable green energy? And how is a rocket less expensive? Fuel is cheap - see the very recent Elon Musk talk (British Aerospace thing?). Rocket costs 60M, fuel cost for that rocket 200k. So a (possibly) reusable rocket is much cheaper than a very long catapult. |
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