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The Solution.

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jeffers View Drop Down
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    Posted: 04 Jun 15 at 12:23pm
The rear bridle arrangement gives better control over the leech tension (allows you to 'vang sheet' more effectively) and reduces sheet loads over a comparable true centre main arrangement. That and if you set it up correctly you can make it almost impossible to over sheet when going upwind.
Paul
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Woodburner View Drop Down
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Post Options Post Options   Quote Woodburner Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jun 15 at 12:37pm
Vang sheet? WTF is vang sheet? Sounds like some sort of thong gender reassignment patients need..
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jun 15 at 1:16pm
The boom needs to be stiff enough that there isn't too much bend aft of the centre mainsheet buggering up the leech tension. Pretty sure that is the only downside of centre main on a single sailed boat, compared to Laser style. Be wary of changing something that was designed to work in a particular way, though - as you are finding, it is much easier to make it worse than better.
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Post Options Post Options   Quote mangoman Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jun 15 at 1:42pm
one of the Solutions at Hickling set it up with a centre main. Made the sheet loads very high. Much easier to gybe though as something decent to grab and pull the boom over.
I have mine as standard and find it just fine as long as I use lots of kicker to keep the leech tension on.
In light winds it may be an idea to have a piece of elastic like Solos and OK's use to keep the boom out downwind ?
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Post Options Post Options   Quote solutiongirl Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jun 15 at 4:33pm
During the development of the Solution, Kevin and Andrew tested pretty much every sheeting arrangement that they could come up with. The "standard" is what they settled on as being what they felt worked best / was most comfortable. As we're seeing here, there are a few tweaks that can be made due to personal preference and an awful lot of tweaks that can be made to make things worse!

I've been reading with interest as there is definitely still potential to optimise the boat but so far I haven't been tempted to make any changes to my boat. One of the big attractions for me is the light sheet loads; I have no desire to feel like I'm fighting with the boat but equally I'm not desperate for every second of boat speed if it makes the sailing less comfortable.

Everyone who's tried the centre-only option so far has found the sheet loads far too high and reverted to having something going on at the back. There was a chap who experimented with moving the tower to reduce the sheet loads on a centre-only option but that then interfered with, well, pretty much everything else going on in the boat so that's gone back to where it should be too.
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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 15 at 7:04am
Originally posted by Woodburner

Vang sheet? WTF is vang sheet? Sounds like some sort of thong gender reassignment patients need..

Resisting the urge to be sarcastic.....which is unusual...

Vang sheet is where you control the leech tension going upwind by using the mainsheet rather than the kicker (known as the vang to by our colonial cousins which is where the term vang sheet may have come from).
Paul
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Post Options Post Options   Quote Woodburner Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 15 at 9:11am
Originally posted by mangoman


In light winds it may be an idea to have a piece of elastic like Solos and OK's use to keep the boom out downwind ?
Agree, nearly did that yesterday, but one thing at a time.

Rigged this arrangement that worked just fine, it's just the rear bridle that keeps engaging with the stern quarter when you don't need it to. 

I've used a bit of tube from a kite safety release so when it swings across there is no way it can engage the mainsheet block, it just needs a loose guide for the single main sheet to travel in to make it 100% perfect, although it caused me absolutely no grief in last nights race.


This rear bridle on the other hand has got to go.




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jeffers View Drop Down
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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 15 at 9:14am
Come on grumpf that boat was sailed by a girl as it was originally rigged, why do you need extra purchase?

The trick on the stern quarter is a flick of the sheet as the boom starts to come across (Laser style....should I say Laser, it seems to be a 4 letter word)....
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Post Options Post Options   Quote chrisg Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 15 at 10:00am
Graham,

I'd look at tying a couple of bits of elastic from the centre of the bridle to the corners of the boat where the rope is tied to. That will take up the slack and mean the bridle shouldn't get caught round the corner I would have thought. I'd also consider having 2:1 at the rear, and then putting the ratchet block at the front mainsheet fixing point half way along the boom and sheet directly from the boom. Its so much nicer than deck mounted and does away with the 4 million blocks at the front of the boat uncluttering everything. Plenty of purchase.
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Post Options Post Options   Quote Woodburner Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 15 at 10:12am
So all that fixing stuff aside I had a bloody good sail about in it on the sea then a race during which the wind sadly dropped, but prior to that we had a thermal Easterly that racked up to about a f4 and produced some waves out back, not long wavelength like a south westerly produces these were shorter, but enough to test wether you were likely to nose plant, like say a Blaze, the Icon or a Zero even if you weren't sailing it right and it doesn't, like I thought, it's a canny little sea boat safe as houses even going up front to nudge her over the edge onto the plane there is not the slightest sense of need to get a canary out ready to go down the mine.

As to the race itself, sadly it's not a boat I'm happy to be in, it lives with Lasers, got an absolute hammering by a Phantom and even when i caught him he was gone again, the Thermal wind we get at this time of night eventually switches off and or goes offshore then does battle with the gradient wind so you either go out to sea and punch even more tide but have more wind, or go up the coast get hugely favourable shift but not much pressure to punch the tide, the first beat I dithered went middle and left which will inevitably lose out to one side or the other and it was the sea side that everyone late off the line had opted for, Contender, Phantom, an RS100 with the big rig had similarly dithered like me, and a Hornet went up the coast, my Laser nemesis went out and by the windward mark had twenty boat lengths and a few more with the now favourably tide as he took off down the reach.
This is where I don't like the light sheet loads, when you need to pump to catch waves you really need something akin to one to one to haul the boom in, as you see that fine example of pumping excellence Sir Ben achieving by grabbing a bunch of the tackle in his Finn and this boat if you can find it will respond well to the appliance of kinetics, I just couldn't find a rythym, I gained a bit but not much, then on the next tighter leg I felt I lost it to the laser which is an eminent surfer with it's extra length then when I arrive at the bottom mark the bloody bridle is wrapped round the rear quarter with all the too-ing and fro-ing as I'd sheeted in to bear off then back out again, hardening up, snaking waves.
As luck would have it he then went out to sea again, I sensed the land breeze was getting the upper hand as the sea breeze backed further off shore so I went inshore out of the tide and reversed the twenty boat length lead back into my favour, then punching the tide, by now pretty much in full ebb, I'd gone high enough to clear the weather mark, but along comes a bloody 470 sailed by a Sailing Instructor who knows how to use the word starboard but not how to sail a short course round marks and she bloody put me about (it's  a starboard windward mark, don't you just hate that, had it been say the EPS or another faster boat my speed would have been enough to get round ahead of her, but in these little things with small sails you are at the mercy of faster boats belatedly catching you up. By the time I made it round fouled by the 470 wind shadow as she overstood even further, the laser was on me again less than ten boat lengths, this next bit, the run, was where I really wished I'd attached that elastic the wind was light and the tide was taking all the apparent wind out of it so the sail constantly wanted to fall back, I slackened the forestay to let the rig go as far forward as possible but still the Laser was very slowly catching. On the dead run in light air even sat on the side rocked right over and doing a bit of subtle ooching I couldn't do anything other than watch the ten lengths become seven, then luckily I spotted a shift & puff gybed, managed to unhook the rear quarter again this time before I hardened up and the beat then had become a fetch into the tide which sorry anti lee bow folks if you managed to get the nose to the right of the counter flow on the occasional lift it gave enough extra pressure to out point him and eventually he tacked off, a fatal move in a tidal fetch which pretty much finished it, but the rest of the fleet including the Phantom had got the favourable shift while we were still battling down the run and by now they were round the weather mark and gone as the wind dropped further.
 All in all not something I enjoy, being in a slow boat at the back of a fleet in an unfavourable tide especially with no-one sat next to moan to. So it's back to the lake with the Solution I think, it's not a handicap racer for our water at Hythe, certainly not in those conditions I fear, the first night of the year when that blessed Icon or the Alto would have destroyed them, maybe had the wind held up, maybe it's the lack of company, maybe it's small man syndrome not wanting to be in a small boat, (although it wasn't difficult to launch and recover once someone held the boat whilst I got the trailer,) but I just didn't enjoy it the way I would have done had I beaten the Laser on the lake, funny isn't it, your stupid brain and mood swings, or maybe it's just me being weird about having to be right at the bloody front of a given fleet, I guess it's what your used to..
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