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From: JBlumhorst@aol.com
Sent: Wednesday, August 11, 1999 2:55 AM
To: Rob Pettibone; wwpotter@tscnet.com
Subject: Re: P19 Traveler, mainsheet, and winch ??s
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West Wight Potter Website at URL
http://www.lesbois.com/wwpotter/
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Hi Potter folk,
I've given the idea of a rear transom some thought. There are two ways to do it.
The first way is pretty snazzy. You'd mount stands on both port and starboard sides of the transom (to lift the traveller over the tiller), and then mount a piece of I-beam traveller track between the two stands. Then put a traveller car on the track, and run the main sheet from the traveller to the aft end of the boom and then to a swivel base with block and cam cleat in the middle of the forward edge of the traveller (Or you could run the mainsheet from the traveller to the boom end and then forward along the boom to the mast, around a turning block and back to the cockpit
Keeping the end-of-boom sheeting is good, because the load on the mainsheet is about 250# at the end, vs double that for mid-boom sheeting, and probably triple that for cabintop sheeting. You'd need some pretty massive mechanical advantage to handle that kind of sheet load (and of course, the blocks "feel" double that load so you'd need some very strong blocks)
It's not technically difficult, but ready made parts would cost piles of boat bucks. Harken makes a pair of stands for the traveller track at about $400/pair, the track would be about $100, car about 150-300, etc. If you have more time than money, you could make the stands yourself out of wood and fiberglass to save the $400
The other way to do it is to stretch a piece of strong line between the port and starboard sides of the transom and put a "brummel" block on it (I think that's what their called). Like a Laser dinghy is rigged. A brummel block is two blocks hooked together with the sheeves on the outside ends. One block rides on the traveller and the other is for the mainsheet. The main sheet goes from the end of the boom to the brummel block, back to the boom end, forward along the boom to some sort of cleating arrangement.
For now, I settled for just one small improvement to the mainsheet arrangement. I don't like the lines that drag across the cockpit either, but, even more than that, I don't like the way there's so much friction when your sitting on the same side as the transom block with the becket. It's too hard to trim the main from that side when it's blowing, and it doesn't run freely in a light breeze.
Here's what I did: I put a cheek block 3" or 4" aft of the swivel fairlead/cleat for the mainsheet. The mainsheet comes from the port block on the transom, thru the cheek block, and then forward to the swivel cleat. It makes for a very fair lead and much less friction. I also put over-sized ball bearing blocks (Garhauer Series 30's) on the transom to reduce friction.
The check block ($11 from Harken; Delrin Ball Bearings and large diameter for low friction; no backing plate needed like on the cheek block for the reefing lines)is mounted on a 3/4" piece of marine-grade plastic to get it up high enough off the transom to lead fairly right into the swivel's fairlead. The cheekblock is not perfectly centered aft of the swivel, but a little towards starboard, so the sheet exits the cheekblock at a right angle to go forward to the swivel.
I've finally finished re-rigging "Redwing" from front to back and top to bottom -- I think I'll leave the rigging alone for a while. I'm turning my attention to the cabin interior next. And to focus on getting more sailing in. We're going to put her in a slip for a month and try to get some after work sailing done. I won't be building a traveller in the foreseeable future.
Best regards,
Judy B
In a message dated Tue, 10 Aug 1999 10:31:23 AM Eastern Daylight Time, "Rob Pettibone" <rjpett@fwi.com> writes:
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> West Wight Potter Website at URL
> http://www.lesbois.com/wwpotter/
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> -----Original Message-----
> From: Grover's AS/400 signon entry <WILLIAM?TRSERVER@tirerack.com>
> To: 'wwpotter@tscnet.com' <wwpotter@tscnet.com>
> Date: Saturday, August 07, 1999 1:17 PM
> Subject: P19 Traveler
>
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - -
> West Wight Potter Website at URL
> http://www.lesbois.com/wwpotter/
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> Has anyone put a mainsheet traveler on a P19. either cabin top or transom
> mounted ? The stock P19 mainsheet control is pretty weak and I am looking
> for ideas to upgrade to.
>
>
> ______
> I'm also interested in any info/suggestions regarding this idea or any other
> main sheet arrangement that would keep the main sheet from crossing the
> cockpit . I use the factory mainsheet arrangement and the main sheet
> crosses the back 1/4 of the cockpit on any point of sail other than close
> hauled. I've considered moving the 2 outboard transom blocks further
> inboard?
>
> I'm also interested in alternate winch locations. Mine's mounted at the
> back of the cockpit and the handle is always in the way in some manner or
> other.
>
> Rob Pettibone
> Ft. Wayne, IN
> P-19 #1094 "Gail Marie"
>
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> <br>Subject: Re: P19 Traveler, mainsheet, and winch ??s
> <br>Date: Tue, 10 Aug 1999 09:44:26 -0500
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