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| Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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| Laser 28 - Excellent example of this great design Hamble le rice |
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Spiros twins Osprey pics |
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NeilP 
Far too distracted from work 
Joined: 23 Nov 04 Location: United Kingdom Online Status: Offline Posts: 271 |
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 Topic: Spiros twins Osprey picsPosted: 28 Mar 06 at 1:09pm |
 That's the one. Did the job pretty well, until I junked the twin poles in favour of a single with a spiro. The boat was Rodney Pattison's Silver medal boat from 1976. Rodney loved his string! It even had strings to open and close the bailers!
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No FD? No Comment!
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nibor
Newbie 
Joined: 22 Jan 06 Location: United Kingdom Online Status: Offline Posts: 11 |
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Posted: 30 Mar 06 at 5:02pm |
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The fitting looks good but I can understand why it chews rope.
Does it provide a more rigid platform than a floating block off the mast D ring tho? If Rodney used it (to a moderate degree of success) should we mere mortals question its effectiveness?  The theory for twin poles is unassailable yet I feel a dither coming - how long would it take to sort it out as I cannot see a clear formula but many interesting components. D ring and blocks Vs Spiro's (upside down and all - never seen reverse Spiro) Vs Custom (Zspar?) fitting. Elastic Vs Gravity Independent uphauls Vs Y string Barberhauler-like system linked to down-haul Vs Seperate string String Vs More String At least it is a bit clearer - thanks again guys. |
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Excrementum Taurii Cerebrum Eludet
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NeilP
Far too distracted from work
Joined: 23 Nov 04 Location: United Kingdom Online Status: Offline Posts: 271 |
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Posted: 31 Mar 06 at 11:43am |
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For what it's worth, my feeling is that twin poles are an awful lot of grief for a pretty limited benefit compared with single pole/spiro set-up, and the difference in speed of gybing can be offset by using the time it would take to make the twin poles work to go out and practice your gybing. I like lots of string - why else would I sail an FD? - but I can't see the sense in having all the fittings and weight of twin poles when one of them is always flopping about doing nothing except being heavy. Stick to one pole and do more sailing? Cheaper, lighter, more reliable and more fun! Neil |
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No FD? No Comment!
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Matt Jackson
Really should get out more 
Joined: 21 Sep 04 Location: Darlington Online Status: Offline Posts: 962 |
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Posted: 31 Mar 06 at 1:15pm |
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Well I disagree. Twin poles take a while to get your head around and to set up but after that they are idiot proof which in some clubs (with limited crews) is a major bonus. A twin pole system is probably cheaper to set up then a Spiro if you use blocks on the D ring or the 'gantry' with sheaves in it. I do agree that you should have fun tho |
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Laser 203001, Harrier (H+) 36
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nibor
Newbie
Joined: 22 Jan 06 Location: United Kingdom Online Status: Offline Posts: 11 |
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Posted: 02 May 06 at 1:58pm |
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Update - After many hours looking and learning, Mark has put a trial twin system on his Kestrel. Its "jury" rigged with blocks off the spinnaker eye. The system is fly away rather than gravity with one piece of elastic between the poles.
He could not get the gravity return to work with the self launching pole (although all the Merlins seem to use the non self launching version and it works well). The issue remains therefore of potential to knock teeth out but I always used to let the pole back in in two phases on the spiro system anyway (it not nice to have a whingeing helm literally spitting blood). He is also looking to have a special fitting made up that is of two mounted angled blocks (like the z spar but with the blocks at 45 degrees to save rope chaff). My boat is delayed until June (because of the shenanigins) but having tried the mark IV out at Bithfield I express unlikely youthful enthusiasm - I can't wait (like Christmas 40 years ago!). Mark and I are sure the system will be fast and easy, the boat will be too - shame about the crew. Will post piccies if there is interest. |
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Excrementum Taurii Cerebrum Eludet
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Pierre
Really should get out more
Joined: 15 Mar 04 Location: United Kingdom Online Status: Offline Posts: 1532 |
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Posted: 02 May 06 at 3:10pm |
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Yup interested in the piccies..... It'll be like 2 christmasses this year... Hurrah !!!
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Matt Jackson
Really should get out more
Joined: 21 Sep 04 Location: Darlington Online Status: Offline Posts: 962 |
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Posted: 03 May 06 at 8:15am |
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It's a while since I sold my Hornet so memory is starting to get fuzzy but the one thing I remember is that in 5 years sailing with the twin pole system it never cam close to hitting anyone because if it's rigged right the elastic take the pole down the boom (which is out because you're retrieving the kite). I think we also tripped the pole in 2 bites with the crew letting it in far enought to get the kite down and then the helm finishing it off. Edited by Matt Jackson |
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Laser 203001, Harrier (H+) 36
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NeilP
Far too distracted from work
Joined: 23 Nov 04 Location: United Kingdom Online Status: Offline Posts: 271 |
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Posted: 03 May 06 at 10:05am |
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Agree with Matt about the flyaway pole - I've never hit my helm with the pole - just as well as my helm is also my wife!! According to Rodney, he had twin poles for a while but went back to the single pole because of the extra weight, and also reckons that the only way to get a real advantage is to have the complete system with string through the poles to pull the sheet to the end of the pole, twin uphauls etc etc. Seems like an awful lot of hassle when all's said and done! Where's the advantage over a single pole? 2 seconds to reach round the mast when gybing onto port isn't much of a gain. I've been thinking about junking the Spiro in favour a gravity system wher the pole can go either side of the boom. Just needs a normal D-ring on the mast and a peice of elastic from one side of the boom, round the mast above the D-ring and back to the other side of the boom. When you trip the pole, just stow it behind the boom, then after the gybe, hey presto! there it is. Simple is good, I would say, but then I'm a crew and we is simple beings!! Neil |
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No FD? No Comment!
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Matt Jackson
Really should get out more
Joined: 21 Sep 04 Location: Darlington Online Status: Offline Posts: 962 |
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Posted: 03 May 06 at 12:37pm |
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We had the whole shooting match with one string pulling pole out and the sheet to the end and the major benefit in the Hornet is that older boats had crew decks meaning that the crews weight was really high during a gybe or set and caused problems rolling in a big sea or with an inexperienced helm. |
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Laser 203001, Harrier (H+) 36
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Matt Jackson
Really should get out more
Joined: 21 Sep 04 Location: Darlington Online Status: Offline Posts: 962 |
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Posted: 17 Mar 09 at 12:43pm |
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Got a gantry for sale if anyones interested:- http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageNa me=STRK:MESELX:IT&item=280323275172 |
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Laser 203001, Harrier (H+) 36
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