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  Haven Builders/Rozinante/Alpha II Forum
  Haven Forum
  Gaff bridle

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Author Topic:   Gaff bridle
Tom
Builder

Posts: 262
Registered: Jul 2002

posted 12-12-2006 09:43 PM     Click Here to See the Profile for Tom   Click Here to Email Tom     Edit/Delete Message   Reply w/Quote
Over the winter I will be making up a gaff rig for my Haven. I need to know all about the rigging required. Specifically, dimensions for the gaff bridle and all the necessary hardware. Photos would be a big help, or even a drawing. Any and all help appreciated.

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Jack
Builder

Posts: 141
Registered: Jan 2001

posted 01-31-2007 06:12 PM     Click Here to See the Profile for Jack   Click Here to Email Jack     Edit/Delete Message   Reply w/Quote
Good idea Tom; This is one of the areas where neither the plans or the book tell much about the rigging. Also there are things like lazy jacks too one might want to consider. This would be a definite area where those who have finished their rigging could give us some diagrams and info beyond whats available.

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Steve Martinson
Builder

Posts: 62
Registered: Jan 2002

posted 02-01-2007 05:13 PM     Click Here to See the Profile for Steve Martinson   Click Here to Email Steve Martinson     Edit/Delete Message   Reply w/Quote
Any details and photos of a marconi rig would be helpful too.

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Brent Cummings
Builder

Posts: 65
Registered: Dec 2004

posted 02-01-2007 06:29 PM     Click Here to See the Profile for Brent Cummings   Click Here to Email Brent Cummings     Edit/Delete Message   Reply w/Quote
A few pictures under the "museums" section that may be helpful. I'm in the midst of turning my spars and getting them to size right now so I too would benefit from this thread. I have no experience with how gaff rigs are set up and am not even sure of some of the terminology. Anyone have any good reference material? Block dimensions would be helpful too as I am collecting used stuff.

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Tom
Builder

Posts: 262
Registered: Jul 2002

posted 02-03-2007 01:07 PM     Click Here to See the Profile for Tom   Click Here to Email Tom     Edit/Delete Message   Reply w/Quote
What we need to know is, what is the distance from A to B, and from A to C, and how long should the wire that runs from B to C be?

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Tom
Builder

Posts: 262
Registered: Jul 2002

posted 02-03-2007 07:26 PM     Click Here to See the Profile for Tom   Click Here to Email Tom     Edit/Delete Message   Reply w/Quote
I posted the same picture on the WB Forum and "merlinron" replied:

"you have the gaff length dimension right there. with a divider it should be easy enough to extrapolate the distances needed. i don't think it needs to be exact, so scaling should get you close enough to work good.
or...

the scale the plans are drawn in should be stated. with an architects scale you should get pretty close."

By my calculations therefor I get:
B = 18"
C = 36"
Length of bridle wire = 40"

[This message has been edited by Tom (edited 02-03-2007).]

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SteveW
Builder

Posts: 31
Registered: Oct 2002

posted 02-08-2007 08:46 PM     Click Here to See the Profile for SteveW   Click Here to Email SteveW     Edit/Delete Message   Reply w/Quote
I can't get to my bridal at this time of year(in storage), but I know that I scaled it from prints that I got from the "NETTLE" at mystic sea port. I have used 3/16 nylon rope instead of wire. I used a twisted D shackle, and a harkin (carbon fibre) block. I would not use wire, as the strength is not needed. The 3/16 rope is stronger than the gaff. And the rope does not cause damage when you drop the sails. I put oak rope stops on the gaff, to keep the rope in place. This has been a trouble free setup even in bad weather, and my haven has seen her share of foul weather.

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Paul Scott
Builder

Posts: 3
Registered: Feb 2007

posted 02-13-2007 09:11 AM     Click Here to See the Profile for Paul Scott   Click Here to Email Paul Scott     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Tom:
Over the winter I will be making up a gaff rig for my Haven. I need to know all about the rigging required. Specifically, dimensions for the gaff bridle and all the necessary hardware. Photos would be a big help, or even a drawing. Any and all help appreciated.

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Paul Scott
Builder

Posts: 3
Registered: Feb 2007

posted 02-13-2007 09:39 AM     Click Here to See the Profile for Paul Scott   Click Here to Email Paul Scott     Edit/Delete Message   Reply w/Quote
The plans for the H 12-1/2 (circa 1939) show a gaff length of 9'-0" (without the jaws) compared to the Haven gaff lenght of 9'-1/2".
The gaff for the H 12-1/2 has oak shoulders, 1-3/4" x 5/16" square, screwed to the gaff to, I presume, locate and fix the bridle ends at 8" and 36" from the outer end of the gaff, since those dimensions are given. There is no mention of the length of the bridle. The mast lenghts of the two boats differ by only about an inch. The peak halyard blocks appear to be located similarily, with the throat halyard located 28" below the mast top on the H 12-1/2 compared to 27" for the Haven.

The leech of the H 12-1/2 is shown as being 6" shorter than the that of the Haven, so perhaps the peak of the Haven's sail will end up higher than that of the H 12-1/2, which may affect the location of the bridle.

I think I will closely check the Haven's sail plan with an architect's scale before I make a final decision (which I hope to be this spring).

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