Is this a G10 rig?

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seadago
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Re: Is this a G10 rig?

Post by seadago »

Seems a complicate rig, but it isn't really. Remember, Gio adapted the setup of traditional Dutch barges, so the system has been tried and tested.

I put grommets every two feet on the luff, and on either side, top and bottom, of the batten pockets. I have five full length battens on each sail. I did this to give me flexibility on how I was going to lace my sails to the mast. I don't use all of them. The more turns of the rakbanden round the mast, the more friction resistance you'll have when hoisting.

For the boom choke, y copied the idea of the original rigging and had them made of wide and stiff webbing with ss rings sewn onto them. If you check in previous posts of mine, there are some pics of them.
The choke is not fixed like on a Nonsuch. This is because I have to change the height of the boom by a couple of feet in order to set the highest reef on the sail and keep the sail trimmed. A webbing choke that slides up and down the mast allows me to do this. The choke is attached to the mast with a line. I can change the length and tension of that line, but mostly I don't, and control the camber of the sail with the outhawl and the angle of the boom.

Rafael
Rafael
s/v Nausikaa
SSR 30570, sail GBR 4619L
F30 CK (Hoyt), wishbones, centreboard, G10 rig. Built by Fairways Marine, Humble, UK, '82
Beta 16 hp with two-blade prop

Sailing-61-North
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Joined: Thu Jun 04, 2020 8:17 pm
Location: Valdez - AK
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Re: Is this a G10 rig?

Post by Sailing-61-North »

Thanks Rafael. I did look at your other post regarding the chocker and will save the picture. I'll figure it out, just needed a little direction to get this going. Now to suck up some OT to pay for sails....
S/V Arctic Tern
Freedom 33
1981 - #37
Prince William Sound - Alaska

andygc
Posts: 86
Joined: Sun Jul 31, 2016 4:33 pm

Re: Is this a G10 rig?

Post by andygc »

Sailing-61-North

Can I just toss in a couple of small points? The word "rakbanden" is plural. The original design of the rig does not use a spiral line down the luff, it uses a series of short lines, using the method used by Dutch sailing barges. If I remember correctly they were the outer sheath of braid on braid rope, fixed to the sail at one end and stoppered through a cringle at the other. That shouldn't catch on the boom lift eyeplate. I wonder if Rafa had problems because of using a continuous line. The details are somewhere in the information posted here about the rig.

In your photos you have a line tied round the mast as a temporary yoke strop (choker). Do you know that the ends of the yoke go through the eye plates on the front of the boom when they are tied round the boom?

Andy
Feronia
(UK Freedom 30 cat ketch, build number 107)
River Exe, Devon

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seadago
Posts: 123
Joined: Sun Jun 03, 2012 8:42 am
Location: Lowestoft, England

Re: Is this a G10 rig?

Post by seadago »

Thanks Andy, and you are quite correct, it is plural. I've seen traditional vessels in Holland with both, a continuous line, lashed in different ways, and also with parrels attached as you describe to the luff, with wooden beads (kloten) on them. Very old fashioned!
Initially, I did not like the continuous spiral line either. I fashioned parrels with beads (resin, not wooden) and I put four or five on the sails instead of the continuous line. Results were mixed. They tended to get tangled when hoisting, limited the depth of the reefs I could have, and I could not get a good shape on the sail. It took a lot of tension on the halyard to get the luff straight. And they did get cought in the pad eye and boom halyard tackle. Then I started using the continuous line, retaining the top two and bottom two parrels at the head and tack of the sail, and relocating the boom tackle to the front of the mast. This, in my particular case, seems to work best in most conditions.
It's a matter of trial and error in many cases, and personal preference, and experimenting is key, IMO, to get it "right".
Rafael
s/v Nausikaa
SSR 30570, sail GBR 4619L
F30 CK (Hoyt), wishbones, centreboard, G10 rig. Built by Fairways Marine, Humble, UK, '82
Beta 16 hp with two-blade prop

Sailing-61-North
Posts: 99
Joined: Thu Jun 04, 2020 8:17 pm
Location: Valdez - AK
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Re: Is this a G10 rig?

Post by Sailing-61-North »

andygc wrote:
Mon Jul 06, 2020 5:09 am
Sailing-61-North

Can I just toss in a couple of small points? The word "rakbanden" is plural. The original design of the rig does not use a spiral line down the luff, it uses a series of short lines, using the method used by Dutch sailing barges. If I remember correctly they were the outer sheath of braid on braid rope, fixed to the sail at one end and stoppered through a cringle at the other. That shouldn't catch on the boom lift eyeplate. I wonder if Rafa had problems because of using a continuous line. The details are somewhere in the information posted here about the rig.

In your photos you have a line tied round the mast as a temporary yoke strop (choker). Do you know that the ends of the yoke go through the eye plates on the front of the boom when they are tied round the boom?

Andy
Hi Andy. My game plan was as you described - as set of short lines around the mast (Has anyone utilized flat webbing?) . Rafa did suggest rakbanden for the top and having cringles every 2-ft along the luff.. Ignor the line tied around the mast. Its just to keep it in place for now. Not sure if I will go with the original setup as described regarding the boom lashing line, something similar to I what appeared to be a soft belt around the mast with metal loops or maybe adopt the adjustable method as on a nonsuch.

Now with that said what would be the ideal measurement for the boom lashing (Distance from the front of the mast to the apex of the boom. The rigging schedule calls for an 8-ft section of 3/8". Secondary measurement is what height does one usually have the mizzen off the back rail?

Thanks
S/V Arctic Tern
Freedom 33
1981 - #37
Prince William Sound - Alaska

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seadago
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Joined: Sun Jun 03, 2012 8:42 am
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Re: Is this a G10 rig?

Post by seadago »

I think you will find the answers to some of your questions depend on the cut of your sails. The original wrap around sails were fairly flat and triangular, with short luff battens. My new sails are very roachy (too much in fact) with full length battens, so they hang differently. The higher you carry your boom in the front, the shorter the horizontal distance between the mast and the end of the boom. The inclination of the boom applies tension on the clew of the sail at different angles, and determines the camber and overall three-dimensional shape of the aerofoil of your sail.

Also consider that, on my boat and with my sails at least, the main is the tractor sail in most points of sail. The mizzen helps with traction, but mainly provides balance, so you don't end up with uncomfortable weather or lee helm. As a rule of thumb, when beating, I carry the mizzen slightly over-trimmed; when running, slightly under-trimmed. This gives me the best balance overall.
Rafael
s/v Nausikaa
SSR 30570, sail GBR 4619L
F30 CK (Hoyt), wishbones, centreboard, G10 rig. Built by Fairways Marine, Humble, UK, '82
Beta 16 hp with two-blade prop

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