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#1
posted to alt.sailing.asa
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sailtrain
hello all,
I'm not much of a sailor sorry about that but I would like to hear what you think of this idea. Thanks in advance :-) http://gabydewilde.googlepages.com/sailtrain |
#2
posted to alt.sailing.asa
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sailtrain
I guess it depends on what's between the stations...
-- "j" ganz @@ www.sailnow.com wrote in message ups.com... hello all, I'm not much of a sailor sorry about that but I would like to hear what you think of this idea. Thanks in advance :-) http://gabydewilde.googlepages.com/sailtrain |
#3
posted to alt.sailing.asa
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sailtrain
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#4
posted to alt.sailing.asa
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sailtrain
I did once consider a similar question regarding hydrogen fuel celled
vehicles and thier associated systems: solar shingles, electrolysis of water to hydrogen at home, storage in a gasbag in the attic or in a low pressure balloon tethered up the chimney, etc. It seemed to me that high pressure H2 tanks were self defeating because of thier weight; if a low pressure tank, or balloon were employed in lieu, a large enough tank would make it unneccessary to drive on roads, as the gasbag could carry the vehicle, with some unexpected consequences. An H2, or any blimp would allow the vehicle to climb and accellerate without expenditure of energy, but would require energy expenditure to descend, if bouyancy was controlled and reduced by compressing some of the H2 in the lifting gasbag into a higher pressure bouyancy compensating bladder, like fish employ. If the vehicle was tethered to a runner on a bridle between journey end points, bouyancy would accellerate the vehicle and approaching the other end being pulled back to earth by running along the tether would assist in deccellerating it. It seemed that the vehicle could also employ sails if the wind were favourable and the tether acted as a keel preventing leeway, like the rails on a wind train. It seems an equally interesting in not practical idea, if not mainly because of the weight of the tether. Of course, if it were a tube bouyed up by H2, eliminating that weight limitation might make it work, not to mention the free flight option. Terry K |
#5
posted to alt.sailing.asa
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sailtrain
If only we had some dilithium crystals captain.
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#7
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sailtrain
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#8
posted to alt.sailing.asa
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sailtrain
Kernix wrote:
Okay - basic sailing - if the wind is at your back - yeah, the crew is happy and sailing is easier and top speeds are obtainable - if the wind is hitting your face - boo, the crew now has to work by tacking and this is when the speed of the boat is at it's slowest Basic sailing? Dead down wind is fastest? Close hauled is slowest? Um....this somewhat depends on the boat, but neither of these statements are correct. ///Walt |