Location: California Tabernacle design challenge I'm throwing this out off the top of my head.
In the old New Haven sharpies, they simply muscled the masts into place, and pulled them the same way. The fun part is engineering a way to easily pull the mast back up, out of the step and the deck, and clamp it back into the hinged tabernacle--so you can lay it back down and trailer on home. Location: Milwaukee, WI You could have a slot on the deck with a closing panel.
Originally Posted by Eric Sponberg Troy, look at the Seapearl 28 which has a cat ketch rig (I designed the masts, although not the tabernacles). What I want to do is pretty much what you described--except that instead of dropping a mast a few inches into a step, I'd like to drop it through the deck to a mast step on the keelson. The Seapearl 28 is no longer built, but they might know more about the masts were tabernacled. When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. I know where I can get a ton of free upholstery fabric, nice and thick and tough enough to build furniture out of. I personally never built or sailed curraghs but I saw big part of the building process couple of years ago in Amsterdam of all places. I guess I should paint the wood too, as I most probably will not be using oak like they recomend.
I figure I can use it for the fine ribs and stuff, and then bend and laminate peices together into thicker beams. I have found a variety of new waterbased tar and latex products, but I think they will be out of my price range, even if they are suitable.
I will have to try to find companies that build roads and see if they will throw me a sack or two of bitumen.
I am seriously considering offering half a case of beer to the next council team that I see working on a road for a couple of buckets of tar.
The guy who has the upholstery has had to dump it at his parents because he has no room for it, thus if I go round there and have a look depending on what I take it will be very cheap or free. I am wondering though if some sort of artificial fabric, that had a very strong quality like canvass, might be better?
On my boat for a fair few non vital things we used a newish cheap 'marine' glue that you get from hardware stores. I am thinking of doing some sort of double ender with curved raised stern and bow- something like the boat in the very back of the picture. The double gunwhales are constructed as with all currachs using the inverted method, starting from the top down, 35 ribs are wedged in the lower (or false gunwhale) and clenched to 13 laths with copper nails. An interesting feature of this currach is the way the ribs and laths are held together, rather than using copper nails, the entire basket is bound with a rope fibre, nowadays nylon string or similar.
Originally Posted by rapscallion Would duggard's Dominion hull shape be legal for he everglades challenge? Location: Wisconsin I have been looking all over for a pic of the America's cup boat Dominion, but haven't had much luck. Originally Posted by rapscallion I have been looking all over for a pic of the America's cup boat Dominion, but haven't had much luck. Location: Wisconsin You are right Doug, thanks for pointing that out and for the reference.
Location: south padre island, texas attached are a few new model pics of my current cat design and my new crazy going off the deep end tangent.

Location: FLORIDA, USA Hi Dennis - As cool as your folding cat design is, I'm worried that the center section isn't very strongly supported under any kind of load. Originally Posted by DIY Tri Guy Hi Dennis - As cool as your folding cat design is, I'm worried that the center section isn't very strongly supported under any kind of load. Location: FLORIDA, USA Dennis - Yes, a freestanding biplane rig would eliminate most of those concerns -- kind of like a pair of monohulls in harness. Location: maine do you find you NEED that much ( area wise) non-skid Kapt.? In a stink pot you only need a path to the anchor, but on a sail boat you are running all over the place so the more non skid the better.
Jim, ever wander why it happens that we start trying to help some nube and we always end up talking to each other and they disappear?
Location: Kailua, Hawaii I am still on the fence as to if I should add another coat or not.
Location: Kailua, Hawaii BTW, awlgripped my cabin sole and teak bilge cover. Location: Brisbane So right Much, VERY FEW reps even know where their nose is, they crap on about things, but you realise in 5 seconds that they know F all. Location: South Florida Use the little blue book and the web page as a guide. Originally Posted by mango madness I am still on the fence as to if I should add another coat or not. Location: Melbourne, Australia New rowing multihull to challenge trans tasman record Video of interesting design of rowing trimaran to challenge the trans tasman record. Location: Melbourne, Australia OK this is a bit of thread necromancy but since the two designs are similar I thought it appropriate to put it in the same thread. I just noticed in Gizmag that another team (led by Andras Bakos team mate is Eric Harrewijn) have had a similar type of rowing trimaran constructed by Flaar in Hungary but for two handed operation once again designed by LOMOcean, it looks like a big brother to the solo design. Location: Jacksonville, Fl Danny Sunkel, who commissioned the first boat by LOMOcean design, seems to be all talk, as his boat has been done for more than 2 years and as far as I can tell, he hasn't rowed it. So, I have much more confidence that the new guys will actually attempt to row from New York to Paris. Location: Cocoa Beach, Florida Sunkel has had a lot of problems but he is still very much into it based on his site. Location: Scituate, Ma Perfecting a Craft Hey Jerr, I know that in your mind, you think that's funny. Being new to the boat refinishing game (although I've been breathing new life into old boats mechanically for decades) I had my choice. The reason I choose to spray, was because to me it was not only the true way these finishes were meant to be applied, but it also presented the largest challenge. Location: Orlando, FL I was once 'forced' to complete a stripe job by roll and tip when the green wackos* showed up and said we could not spray so we tipped and rolled instead. Binks and Devilbiss parts should be equally available since they are now both owned by the same company, ITW, and have the same distributor networks. Location: maine what ta hell does roll and tipping have anything to do with being a green wacko? Both methods have their own skill level, both have their pros and cons, I have to say that a good roll and tip paint job is equal to if not better than a spray job. I posted pictures of a 26' sailboat and the deck of the Benny that I just finished, both roll and tipped.
OTOH I have no idea why you have taken a hostile attitude toward me in your last post in response to that post I have come to the conclusion that you may in fact be a ***** and I will treat all you comments accordingly in the future.

It can't be that hard to come up with a setup where you stuff the foot of the mast into a tabernacle, clamp it into place, raise the mast, then loosen the clamping mechanism to drop the foot of it through the foredeck or the bridge deck and into the mast step.
Am I right in thinking these masts are basically surface-mounted, with the tabernacle acting in place of a mast partner? Like I said, that's the easy part; the interesting part is to pull it back up and out of the deck so I can lay it down. Ancient Irish boat type made from light wooden frame and covered with few layers of rough fabrics soaked with tar. Rot is not really a problem because everything is soaked in tar and boats are taken out of the water when not used. If you take a good look at the photographs, and find some line plans for Norwegian prams you will have enough informations. That was during international sailing ships meeting, Irish team just built one right there on the spot in two or three days.
It is clear and yellow like honey and uses water (in the wood or added to dampen the wood) as the catalyst- which makes it foam to fill any gaps. The ribs are of unbarked hazel, whereas laths are sawn and as they run into the bow they are bound in a clump, thus the currach retains its distinctive roundness from stem to stern. If you plan to add mast compression to the weight of people, how will you keep it from breaking in half?
I do think the crossmembers could be made to interlock when open, which would be a solid solution.
I get that there gonna need cover from elements and such, but I wouldn't have thought they'd do that much boat in terms of weight. Their beaurocratic meddling produced no tangible result except to delay my job and cost me money. At which time the tabernacle setup either gets stowed or ignored, since the mast is now securely in place. Eventual damages are patched with fabric and tar, but these boats are quite resilient to damage, as they are quite elastic. Their stand was one of the best, aside from boat builders and sail makers in action, there was nice Irish live music and Guinness of course…so, some boat details got a bit blurred for me. It's basically and extreme tunnel hulled scow that won the America's cup but was quickly banned. If you have the equipment (all, including the respirator) and the facility to spray then by all means go for it.
Later, wood prevailed for bigger size boats but smaller currags continued to be build to this day. Use a thicker roller, almost like house paint type of roller and just roll the entire deck at one time.
They come in different shapes and sizes, from the smallest that are completely circular in form in sheltered waters to the quite seaworthy surfboats for 4 or more rowers.
All scows have this problem; there are reports of Sonder boats pounding the caulk out of their seams in Marblehead harbor.

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