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Topic: twin trapeze |
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phil the froggie |
Posted: 01-Oct-04 12:28 |
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Hi,
My wife and me are a 110 kg crew (!!)
What do you think of a double-trapeze on Iso? (For leisure, not for class races!)
A friend of mine has already equiped his Iso with one, but he broke the mast 2 weeks after/
Do you think the original mast is strong enough for a double trapeze?
Has anybody tested it on ones boat? |
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Bob Ladell |
Posted: 01-Oct-04 20:25 |
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:) - a certain somebody suggested that as idea at the beginning of this year and got a good laugh in return.
Good to hear somebody was brave enough to try it - but sounds like we might all just have the answer. How did your friend break his mast ( capsize, large waves, heavy breeze ? ) and where ( as in top section, bottom section or .... ) ??
Some photos would be good - my e-mail address is in the Committee section.
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Diederik Schuuring |
Posted: 04-Oct-04 07:45 |
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Hi,
I have equipped my boat with a double trapeze and sailed it regularly with a 140 kg on board. No problems so far  |
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steveb |
Posted: 04-Oct-04 08:51 |
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Diederik,
Where do you sail your ISO normally? |
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Diederik Schuuring |
Posted: 04-Oct-04 12:16 |
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My boat is located in Holland: Zeewolde (might be hard to find on a map, it´s close to Harderwijk) |
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mmoncia |
Posted: 04-Oct-04 12:25 |
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I know for sure of a guy using twin trapeze on an ISO on Garda lake for a long time without any problem on the mast.
If this could help I may try to get in touch with him (I found his name on a message board while trying to get some people on the ISO here) asking him for tech details.
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phil the froggie |
Posted: 04-Oct-04 18:06 |
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Well, thank you all!
I guess problems could be caused by waves, more than by wind.
Our "summer spot" is as flat as a lake (isle of ré/ la Rochelle)so it's a real tentation testing it.
Did anybody BREAK one's mast with such equipment ? |
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EnR |
Posted: 14-Oct-04 16:26 |
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During 1999, wanting to manage in the future a real twin wire skiff and having little spare time to learn and little money, with my friends I bought an ISO and modified it as hereinafter: twin trap wires, long rudder stick, no wings, no hiking straps.
The second trap wire was spliced with the crew wire near the attachment to the mast. So we may quickly return to single trapezing for regattas and we didn't added any hole to the mast.
The result was very satisfyng: the boat was lighter without the wings and we had a lot more sail carrying power upwind and downwind. The boat was an enough stable platform to easily learn double trapezing and the following year we jumped straight into a Boss.
The only problem we had was a broken headstay attachment at the hull, but was due to misuse from the previous owners.
The boat was very enjoyable in all the wind ranges with three minor downpoints compared to the SPICE: a bit smaller sail area in light winds, the low boom during tacks and gybes, tricky when you push the limits of real flat out downwind (we think due to the narrowing stern shape).
All in all it is worth to try double trapezing once in a life. |
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phil the froggie |
Posted: 14-Oct-04 18:27 |
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Hey, learning double trapezing on a easy hull is exactly my program!
Thank you for sharing your experience. |
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Diederik Schuuring |
Posted: 15-Oct-04 08:54 |
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Hi EnR,
I'm interrested in where you connected the shockcord for the second wire. I led mine under the space frame through a plastic eye, but sometime found it was a bit close to the other wire for comfort.
Thanks, Diederik |
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phil the froggie |
Posted: 15-Oct-04 09:18 |
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Hi Diederick,
Can you show me pictures of your equipment? |
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Diederik Schuuring |
Posted: 15-Oct-04 10:34 |
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Sorry, no photos or a digital camara available |
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phil the froggie |
Posted: 15-Oct-04 15:19 |
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Did you hang the second wire with the first one,at the same point, like Enrico? |
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Diederik Schuuring |
Posted: 18-Oct-04 11:10 |
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No, I discussed it with a mast builder and drilled a second hole about 5 cm higher in the mast. |
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EnR |
Posted: 18-Oct-04 11:37 |
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Hi Diederik,
I led the second trap shockcord through the eyestraps supporting the mainsheet bridle. This arrangement looks similar to the Boss one and is comfortable. |
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Diederik Schuuring |
Posted: 18-Oct-04 15:26 |
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Sounds good, but does this not interfere with the boom when reaching? |
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EnR |
Posted: 18-Oct-04 15:50 |
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No if the shockcord is slack enough.
If you want a long shockcord (so that it is tight but soft) led it:
1) going from the first eyestrap towards and around the front of the mast base, then back to the second eyestrap
or
2)going from the first eyestrap back round the rudder post and then to the second eyestrap. |
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Diederik Schuuring |
Posted: 19-Oct-04 09:24 |
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I can imagine that a long cord helps. Did you trapeze on reaching and still have no problems that the leeward wire distorted the sail shape? |
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EnR |
Posted: 19-Oct-04 11:57 |
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I don't remember any particular problem. Surely in light winds the lower main has to deflect the trap wire (as in the Boss).
Reaching with the added leverage the main is fairly in, however I mostly performed windward-leeward course.
If you add an eyestrap on the inside of each gunwale, as in RS800, you have a cleaner layout with the little drawback of some new drills in the hull.
My suggestion is try the first solution and, if it isn't satisfactory for you, drill the hull. |
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Diederik Schuuring |
Posted: 19-Oct-04 13:47 |
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Thanks a lot, I'll give it a try |
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Ian Paterson |
Posted: 20-Oct-04 16:38 |
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Phil, the boat that is actually designed for you to twin wire @ 110kgs is in fact the Spice, why not try one?
Ian Paterson
Spice 346 |
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