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Ok- poll time!
If you had 'sufficient resources' what is the best way for people to go
into space for tourism within the next ten years? Guidelines: 1) No current unobtainium/wishalloy permitted That means space elevators are OUT- we dont have the nanotubes-sorry! Only stuff we know how to do right now. That also means no scramjets. 2) cheap is good (optimise for per-launch costs) By best I mean cheapest per person. You can launch them one at a time or thousands at a time. Fractions of a person is no good :-) Costs need not include R&D, but must include building launch vehicles and repair/replacement and all the usual costs (like wages etc). 3) You are allowed $20 billion in 2004 US dollars for your R&D Go ahead- knock us out- what's the best way that can reasonably work right now? It's just a bit of fun. There is a wishalloy cup for the winner. (Or atleast you'll wish you had one). |
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"Ian Woollard" wrote in message
... If you had 'sufficient resources' what is the best way for people to go into space for tourism within the next ten years? Guidelines: 1) No current unobtainium/wishalloy permitted That means space elevators are OUT- we dont have the nanotubes-sorry! Only stuff we know how to do right now. That also means no scramjets. 2) cheap is good (optimise for per-launch costs) By best I mean cheapest per person. You can launch them one at a time or thousands at a time. Fractions of a person is no good :-) Costs need not include R&D, but must include building launch vehicles and repair/replacement and all the usual costs (like wages etc). 3) You are allowed $20 billion in 2004 US dollars for your R&D Go ahead- knock us out- what's the best way that can reasonably work right now? It's just a bit of fun. There is a wishalloy cup for the winner. (Or atleast you'll wish you had one). My current best guess... Two stage air launched LOX/kero with vertical rocket landing for both stages at the air launch site. The airlaunch vehicle would just be a standard type aircraft with the rocket vehicle held on a separate wheeled cradle/gondola. This would be supported on a bridle below the aircraft's main wing and fuselage, being towed down the runway prior to takeoff, (like a glider but without wings). It would launch at perhaps only a ten kilometer altitude, up range allowing the lower stage to easily land at the air launch site. The lower stage might be a long the lines of the Armadillo vehicles, though perhaps with LOX and pumped engines, OTS. Upper stage might be a very short and large diameter capsule, (extremely fluffy saucer shape). Integral LOX/hydrocarbon engines and tanks with rocket powered vertical landing. A reusable reentry shield might be desirable, perhaps water cooled, though this would require development. Perhaps toroidal tanks with a spacious payload/passenger area in the centre. Size? Perhaps in the 1-10 ton payload range, depending on market and funding. This should be well within the lift capacity of OTS aircraft. Cost? Hopefully less than $200 million till first use, with additional bigger, better, cheaper vehicles added in response to market forces. Cost to LEO should hopefully quickly get below $100/kg. Note, $20 billion does not sound like CATS to me. Pete. |
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