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Forums28
Topics3,983
Posts19,061
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Most Online238 Feb 9th, 2024
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Re: Heavy Air Trim/Setup
#470
02/07/01 02:46 PM
02/07/01 02:46 PM
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Joined: Apr 2000
Posts: 678 Maryland, USA
Bob Rutsch
Governor at Large
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Governor at Large
Joined: Apr 2000
Posts: 678
Maryland, USA
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On Bebop, we change to the #2 at about 20 apparent and the #3 at 24, since our crew is usually only about 1200 lbs. From 18 up, mainsheet is as tight as you can get without hooking the upper batten, outhaul and cunningham on, vang pulled on with the main trimmed. I play the traveler, controlling heel and helm pressure, constantly talking to my skipper, and dropping it any time the helm loads up. We don't vang sheet until dropping the traveler has no effect. But, usually with the traveler all the way down, the main is barely working. I don't like to feather until we are thinking about a reef and #3 at 30. If you feel slow with the #3 blade, ease it and inch or two, drop the traveler and put the bow down. Strapping the #3 is slow.
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Re: Heavy Air Trim/Setup
#471
02/12/01 04:25 PM
02/12/01 04:25 PM
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Joined: May 2000
Posts: 13 Halifax Nova Scotia, Canada
John Colpitts
Member
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Member
Joined: May 2000
Posts: 13
Halifax Nova Scotia, Canada
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Alan, you don't mention rig set-up. We tighten the rig to about 2000lbs upper and lower, if i think it will be really gusty I may shorten the headstay an inch from max, this seems to allow better control of headstay tension and let's us flatten the entrance of the blade a bit better. (shorten the headstay BEFORE you tighten the shrouds!!!) We often sail with 1200lbs crew, and some of our crew won't hike, so we hurt in the heavy stuff too.
Mark, you must have a later boat with 3/8" shrouds - according to my Loos gauge (and the tuning guide, by the way) the max tension on our 1981 model with the 1/4" shrouds is ~2000lbs. Am I missing something? Most of the local J/29's use the 3000lb range I think, they all have 3/8" rigging.
John in Halifax
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Re: Heavy Air Trim/Setup
#479
02/14/01 02:24 PM
02/14/01 02:24 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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I think Sea Biscuit has a novel approach to rig tension. They leave the shrouds alone, and adjust the forestay. When it blows, they crank the headstay tighter and that automagically tightens the shrouds. Or at least that's what I was once told. Unfortunately, I don't have any quantitive numbers. On Lake Michigan, when it blows there's usually a bit of wave associated with it. While we're sometimes able to carry a #1 in 25 kts when it's really flat, we have generally switched to a 2 or 3. The terrible thing about having a decent 2 is you have another choice to make As to rig tension, we leave the headstay alone and crank on shroud tension. Like Bob Rutsch, I remember loose gauge numbers and not pounds. With 1/4" rigging I put about 45.5 on the uppers, and 44.5-45 on the lowers. With a flattening reef, our main can be really flat with the backstay pulled down to just below the stern rail. I'm afraid I'm not coordinated enough to handle main trim and steer in those conditions. We keep the main sheeted pretty hard, and the main trimmer is working the traveler. When we're working well, there's quite a bit of conversation between the trimmer and driver. As to rigging changes, we've moved our backstay adjustment forward and double ended so the helm or main trimmer can adjust it. We also have a fine tune on the main so even my daughter could crank on an extra inch when it's blowing 30. I think we're one of the faster boats around here upwind in a breeze. Downwind, some good crew work seems to keep us in the hunt.
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