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Granite View Drop Down
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    Posted: 01 Mar 05 at 1:27pm

Originally posted by Chris 249

Of interest (perhaps) AFAIK there's a swing back away from the bend concentrated in the  topmast in skiffs; 14s, 16s and 12s have moved back towards more even bend I'm told. Dunno about 18s.

That would seem to be the case in the 12' inspired C-Tech/Fife rigs that have been appearing on some cherubs in the UK, Jim C can correct me but some of them seem to be set up with the main shrouds not connected to the lower spreaders and with the caps being static bend controll on the masts. With the Kicker and Cuningham bending the mast while sailing.
If it doesn't break it's too heavy; if it does it wasn't built right
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JimC View Drop Down
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Posts: 6661 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 05 at 5:08pm
Mine is set up with caps and main shrouds both through lower spreaders and locked in place by the checks to the spreader roots. Both caps and main shrouds are bending the lower mast forward, only the checks bring it back straight. I suppose you could adjust the checks to control prebend statically but I've never felt the need. Because I've got a mast stump the kicker doesn't try and put bend into the lower part of the mast.
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Blobby View Drop Down
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Posts: 779 		Post Options Post Options   Quote Blobby Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 05 at 12:32am
Originally posted by Granite

Originally posted by Chris 249

Of interest (perhaps) AFAIK there's a swing back away from the bend concentrated in the  topmast in skiffs; 14s, 16s and 12s have moved back towards more even bend I'm told. Dunno about 18s.

That would seem to be the case in the 12' inspired C-Tech/Fife rigs that have been appearing on some cherubs in the UK, Jim C can correct me but some of them seem to be set up with the main shrouds not connected to the lower spreaders and with the caps being static bend controll on the masts. With the Kicker and Cuningham bending the mast while sailing.

Is this not just a reaction to the increase in roach and the really fat-headed sails that are being cut now?  These must put more load on the tip of the mast meaning a relatively stiffer section will still provide the same gust response as the more flexible tips do when coupled with more pointy headed sails?
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eric_c View Drop Down
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Posts: 382 		Post Options Post Options   Quote eric_c Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jun 22 at 5:39pm
Bump!
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423zero View Drop Down
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Bump?
Robert
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eric_c View Drop Down
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Posts: 382 		Post Options Post Options   Quote eric_c Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jun 22 at 7:04pm
I thought it was useful info (and opinion) in the context of today's other thread.
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423zero View Drop Down
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Posts: 3420 		Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 07 Jun 22 at 7:10pm
Got it, read both pages before I noticed date.
Robert
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ChrisI View Drop Down
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Posts: 143 		Post Options Post Options   Quote ChrisI Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jun 22 at 10:53am
Interesting thanks.
JimCs comment suggest that if we used fully battened that some 'gust response' could be designed into the top part of the sail more easily. Unfortunately fully battened might be unmanageable for us for rigging/launching/large wind changes.
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eric_c View Drop Down
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Posts: 382 		Post Options Post Options   Quote eric_c Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jun 22 at 11:29am
Originally posted by ChrisI

Interesting thanks.
JimCs comment suggest that if we used fully battened that some 'gust response' could be designed into the top part of the sail more easily. Unfortunately fully battened might be unmanageable for us for rigging/launching/large wind changes.


I've never noticed fully battened being much worse than anything else for rigging and launching.
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