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On Mast Movable Sails |
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Phat Bouy
Posting king Joined: 15 Jun 05 Location: United Kingdom Online Status: Offline Posts: 168 |
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Topic: On Mast Movable Sails Posted: 04 Oct 05 at 5:25am |
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I've been tossing this around for a while; what about a 16-17' fairly
high performance dinghy designed so that the mainsail is a double
skinned affair, basically an air pocket. The majority of the pocket
would be in a"wing" between 6 and 10' long and would slide side to side
either by electric power or by the crew using the mainsheet and either
tacking or gybing across the wind. The cunning stunt here is to fill
this pocket with super-saturated hydrogen gas. This would have the
effect of dropping the CG of the boat to below the water line. This
would eliminate the need for "trapeze" wires and according to my
detailed calculations, the toe-straps could go as well and the crew
would not need strapping down or up. The effect would be that the boat
will always be upright and therefore at the optimum sailing position.
There would be a deep daggerboard (non-retractble) with lots of weight in it- and the ends of the wing would contain gas cannisters for replenshing the "pocket" in the "wing" therby helping to "prevent" a semi-permanent capsize. The hull would be fairly narrow and the wing would pivot for trailering or stowage.It would have a spinnaker... oh and some of the gorgeous sparkly stickers and probably a rudder as well. These are pictures of an rc model with such a system on it: http://www.cupid_stunt.com/pikchures/c_s_01.jpg http://www.cupid_stunt.com/pikshures/c_s_02.jpg The concept is to allow high performance without the physical requirements of actually sailing in order to open up the thrill of performance dinghy sailing to people that for whatever reason don't want to or physically can't hike or use a trapeze. I'd really like to hear comments... (no, not really!!) |
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a_stevo
Groupie Joined: 29 Aug 05 Location: Australia Online Status: Offline Posts: 72 |
Post Options Quote Reply Posted: 04 Oct 05 at 5:32am | |
http://www.moth.asn.au/news/wa_2001_nov.html -double skin sail By the way, you are joking arent you? i really hope so. |
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Contender443
Really should get out more Joined: 01 Oct 04 Location: United Kingdom Online Status: Offline Posts: 1211 |
Post Options Quote Reply Posted: 04 Oct 05 at 7:21am | |
It's not April the first today is it??????????
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Bonnie Lass Contender 1764
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Marine Boy
Groupie Joined: 01 Sep 05 Location: United Kingdom Online Status: Offline Posts: 42 |
Post Options Quote Reply Posted: 04 Oct 05 at 8:28am | |
I just hate that feeling when one minute you start reading a post then the next you're lying on the floor in a pool of wee...oh please stop it !
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CurlyBen
Really should get out more Joined: 17 Aug 05 Location: Southampton Online Status: Offline Posts: 539 |
Post Options Quote Reply Posted: 04 Oct 05 at 8:37am | |
Anyone else think there's some similarities here?
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49erGBR735HSC
Really should get out more Joined: 30 Mar 05 Location: United Kingdom Online Status: Offline Posts: 1991 |
Post Options Quote Reply Posted: 04 Oct 05 at 6:08pm | |
Can't spot any similarities at all
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Isis
Really should get out more Joined: 01 Sep 05 Online Status: Offline Posts: 2753 |
Post Options Quote Reply Posted: 04 Oct 05 at 6:43pm | |
BWUHAHAHAHAHAHA!!!! |
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Black no sugar
Really should get out more Joined: 04 Dec 04 Location: Somewhere between Brighton and Lancing Online Status: Offline Posts: 3941 |
Post Options Quote Reply Posted: 04 Oct 05 at 7:23pm | |
You might laugh, you boys, but I don't think it's a silly idea...... The boat design would have to be carefully planned, though. I think a smaller hull of more even dimensions could work. Similarly, the sail wouldn't look quite like the traditional dinghy sail, but adopt a looser silhouette depending on weather conditions. One detail I don't see working: the gas canisters... Pffft, that's a bit unpredictable, innit? What about a calorific device set at the bottom of the sail? The pressure would be such that no mast would be any longer needed... The crew would indeed adopt a more relaxed view of sailing and, in good days, move into another dimension! Ohhh I can hear you laughing, but it's been done before! Check this converted dinghy running gracefully on a French river : http://www.funandsky.com/prestation/photos/1200dpbateaux001. jpg
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Black no sugar
Really should get out more Joined: 04 Dec 04 Location: Somewhere between Brighton and Lancing Online Status: Offline Posts: 3941 |
Post Options Quote Reply Posted: 04 Oct 05 at 7:24pm | |
Oh and PS: When it comes to sparkly stickers and pretty colours, the sky's the limit!!
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Phat Bouy
Posting king Joined: 15 Jun 05 Location: United Kingdom Online Status: Offline Posts: 168 |
Post Options Quote Reply Posted: 04 Oct 05 at 8:45pm | |
One detail I don't see working: the gas canisters... Pffft
Ah, well, yes, no, yes now you see I've spoken to the British Oxygen Corporation (BOC) and at great length. They assure me that their gas would go with a might woooooosh not at all like a damp squib of a pffft. Definitely a might woooosh - hang on, it might have been a wooooom. Oh Lord, I'm not entirely sure - I'll get back to you in this, well just as soon as I can get some more change for the telephone box and they only let me out on Tuesdays. Are but then I wouldn't have enough for the light meter - I'll get back to you next week! |
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