Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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Laser 140101 Tynemouth |
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Laser 28 - Excellent example of this great design Hamble le rice |
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List classes of boat for sale |
12ft skiffs develop a new boom vang setup |
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sargesail ![]() Really should get out more ![]() ![]() Joined: 14 Jan 06 Location: United Kingdom Online Status: Offline Posts: 1459 |
![]() ![]() ![]() ![]() Posted: 07 Mar 06 at 1:26pm |
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Actually in the 300 the bend is desirable.
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Guest ![]() Newbie ![]() Joined: 21 May 04 Location: United Kingdom Online Status: Offline Posts: 0 |
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Jim, We use the GNAV on the MPS and I don't see any disadvantage; it allows the goosneck to be at deck level which a a great advantage. Also you only need to move a very small amount of rope to change the kicker from full on to full off which is a big advantage in a short handed boat. Rick |
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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I'm sure you don't. But, for instance, with the same basic layout you could have a tension vang on a radiused track and traveller and the gooseneck on the bulkhead not the mast which would mean you could eliminate the lowers and use a lighter mast section. You'd lose the fuss round the mast and the strut and the whole thing would have lower drag, and the kicker perpendicular to the boom would require even less string. On the other hand that setup would be not be that much faster - probably not enough to notice against other classes - and much more expensive to build, so it wouldn't be a good option for a one design. Everything in sailboat design is a compromise. Given the rest of the design decisions in the Musto Skiff the compression vang looks like a good option, like the RS300 I mentioned. On my last Cherub, with a mast stump, permitting no lowers, and the need to get my fat head under the boom, it would not have been a good option. |
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Granite ![]() Far too distracted from work ![]() ![]() Joined: 12 May 04 Location: Scotland Online Status: Offline Posts: 476 |
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Putting the mast of the stump complicates the whole lower mast bend and
I do not think works unless you have shrouds going to the spreader roots
I bet you would be supprised how much the stump on your old boat moves about under kicker loads, it could even be more than an equivalent hogg stepped mast. thanks to loosing the stiffness of the mast at goosneck level. Having lowers is also usefull to allow you to tune the bend in the lower mast. |
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If it doesn't break it's too heavy; if it does it wasn't built right
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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Which it has, being based on an R rig. |
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Granite ![]() Far too distracted from work ![]() ![]() Joined: 12 May 04 Location: Scotland Online Status: Offline Posts: 476 |
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I know, but shrouds going to spreader roots are quite long compared to lowers going to goosneck |
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If it doesn't break it's too heavy; if it does it wasn't built right
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