Boat Building Academy student Ian Baird’s project to build a replica of the rare Dorset crab and lobster boat known as Witch of Worbarrow during his course is continuing apace, as it must to be be ready for the big launch on the 9th December. Ian, who was a novice woodworker at the beginning of his nine month course at the BBA, has been commissioned to write three articles on his experiences for Watercraft Magazine. The launch of the BBA’s March 2010 project boats will take place in the harbour at Lyme Regis, Dorset, at 9am on Wednesday 9th December 2010. Have you got news for us?If what you're doing is like the things you read about here - please write and tell us what you're up to. Classic Sailor is a new magazine about traditional and classic boats from ex-Classic Boat editor Dan Houston and colleagues that promises rather more coverage of the traditional craft around our coast. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Follow me on TwitterLooking for something?This is a busy weblog, and what you're looking for is probably still here - just a little way down the list now.
Our Faversham-based friend Alan Thorne can help with boatbuilding projects - constructing to plans in very tidy stitch-and-glue or more traditional techniques.
Location: San Francisco Boat building workshop I am hosting a four day hands-on boat building workshop in my backyard in San Francisco.
Location: Tasmania,Australia Its a great twist that Derek has - get paid to design a boat, then get the builders to pay for the privilege of building it too.
I would like to hear from any Kelsall design builder who actually finished a boat without Derek being on site to supervise the KSS method. Location: San Francisco Actually, when Derek holds a workshop the builder, who is usually building his own boat, gets all kinds of free help as the class works on part of their boat and Derek is onsite to answer questions that come up, both of which benefit the builder. Also, this design is not a Kesall design - it is a resurrected Micronesian design from hundreds of years ago. Originally Posted by pedruperez Actually, when Derek holds a workshop the builder, who is usually building his own boat, gets all kinds of free help as the class works on part of their boat and Derek is onsite to answer questions that come up, both of which benefit the builder. I have been a fan of his work since his first plywood designs, and his innovative work in plywood. Location: San Francisco The 47 foot Chamorro Flying Proa that we built using redwood took two years to build and cost about $20k just for materials, and that was in California, not in the Marianas where it would have cost three times as much.
Now that we've built the proa it has become a cultural treasure - it is the first one in over 250 years. We consider that if we can teach the younger generations how to build and sail again and if we can get 500 Chamorro Flying Proas on the water at the same time once again, that we will have recovered our maritime tradition.
Our plan to get to 500 proas is to build three canoe houses - one on Guam, one on Saipan and one in San Diego where there is a large Chamorro community.
I also suspect that foam and glass will survive longer than timber in the marine environment, which would make it good value. Even so, have you done the detailed costing of marine plywood ( not timber ) with say epoxy ? If you want to teach people to build boats, plywood is by far and away the easiest technique - especially if you want to get 500 + boats in the water.
Location: Duluth, Minnesota Cool, i dont know how i didnt know that, i learnt something today. Location: Tasmania,Australia Yes, he may have started early on foam, but not exclusively since the 60's by any means. I am still curious if you have actually done the costing between ply and foam, considering you have so many boats you want to get in the water.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals.
Originally Posted by LyndonJ I'd stick to conventional methods, you'l have an asset then that you can relise when you sell.
On a steel boat, where you build in your details and weld them down, which would have cost exponentially more in a non metal boat, the finished steel work is thus a far greater portion of the finished boat, than it is for non metal boats. As I point out in my book, people often fail to differentiate between resale value and resale price. The fact that McNaughton is too dense to comprehend basic geometric principles has nothing to do with structural reality.
The picture above is of wooden planking ,which has no strength across the planks , which is exactly what frames were developed for. There is nothing floppy about a finished origami hull.Such comments reveal an absolute naivety about the subject.
As for the cost beatup, you were asked before just how much it would really cost on another thread (in time and dollars) to add 5 or 6 transverse bar frames to a 36 foot steel boat. Nobody said that origami hulls are floppier, they are just weaker becasue the framing is floppier than a conventional frame. But you need to accept that some of your reasoning doesn't scale well to larger boats with much higher loads. Location: British Columbia Points 1 and 2 apply equally to longitudinals, as they are equally supported by their being welded to the hull plate, with the added structural advantage of going around a curve, yet you insist on calculating them as stand alone, with no attachment to, or support from, the hull plate.
It doesn't cost much to put 6 transverse frames in a hull, once it has been pulled together using origami methods, altho I know one guy who turned a couple of frames into a several week project, to increase his total income for the job.The point I am making is, if you put the frames up first, then try put the plate on to fit the frames, the cost and time goes up exponentially. Originally Posted by Brent Swain Points 1 and 2 apply equally to longitudinals, as they are equally supported by their being welded to the hull plate, with the added structural advantage of going around a curve, yet you insist on calculating them as stand alone, with no attachment to, or support from, the hull plate. The relevance of frames is quite necessary to make the whole ship an almost corrugate systeme, with all the strength in all the direction. Now when the round plate is transformed in chine on your design, you have an intense stress point there, and that is no good practice.
As for your other boat, they all are ceiled in wood inside and seams to cost much more that a Swan. Fisherman and commercial are tough with the money, every cent is acconted, but you don't know that. By the way I would like to mention, a vessel of a certain size is never ever designed by one person, same for building.
We may argue about his biased opinions, about his terribly obvious lack of understanding some basic engineering, but we cannot argue that he does it to harm or insult other members.


I know there are visitors here which cannot really get it together, where is the knowledge and where the anecdote. Reverse clipper bows and wine glass cross sections would be difficult but practically any other single and multi chine hull form can be done in origami. It's clear that the longitudinals go into tension, suffer stress reversals and consequently deflect more that a pre bent frame. Originally Posted by whoosh … do these boats come with lines, as iines if one wanted to draw a body plan, for tankage floors frames etc? That can be done by the software, or you can build chine model and take the strakes patterns from it.. Originally Posted by dskira When I designed and latter on built (sorry, I built too, but that is not relevant since you want to be the only one here) if we don't put frames the vessel will have been not able to do its work properly due to wickness, let alone having the cargo capacity strength needed to pay for itself and being safe. Daniel As I only build one hull a year, a couple of weeks work, and on every on I work with the owner, who's lifelong dreams are coming true , quickly before his eyes, it never gets boring.
The end of the chine where the cone begins is solid plate once the chine ends, not weld, so one is not dependent on the weld for strength. Where Paul's mast goes thru the deck, a large doubler of heavier plate, plus some flat bars on edge eliminates the chances of anything wobbling . The only compression on the mast is only the weight of the mast, rigging and sails on a junk rig , unlike the tremendous compression on a marconi rig. Colvin estimates 1,000 hours for a hull and deck, something origami lets you do put together in under 100 hours.
As I pointed out in the cabin top example, a curve drastically increases the stiffness of a piece of plate . None of my boats have ever had problems getting insurance at the best rates, or passing survey. Originally Posted by Brent Swain None of my boats have ever had problems Hope it will stay that way. Location: British Columbia I have made wineglass sterns by welding the last few inches of centreline first, before cranking the deadrise out with the hydraulic jack.
As Herreschoff pointed out , in smaller boats, clipper bows tend to stop a boat dead in her tracks when they hit a steep head sea. Many of my hulls have saved their owners from the disasters which would have resulted in most other cruising boats out there. The hull will need a lot of framing following on from that picture and I'm skeptical that in the long run with a vessel that size it might just re-allocate the build time. Roberts has a method which is said to be fast, its bottom plate then framing then the rest built bottom up.
The picktures below show how the boats are built by artists with plain tools and they had working hands.
I would like to know how much it would cost me to build a 19th century two masted schooner of maybe 30 tons in the shape of an Italian TARTANA out of wood. The Maritime Museum Boat Building Program helps students build traditional Louisiana designs under the watchful eye of experienced instructors. If you are interested in enrolling in the Boat Building Program, download the Registration Form and Recommended Tools or call the Maritime Museum at 985-845-9200 for more information. The success of the Boat Building Program is memorialized as the subject of the 2009 Wooden Boat Festival poster. To learn more about how the popular lake skiff is constructed visit the JK Wood Studio website. If you wish to advertise on our site, please contact the advertising department and inform them on what pages and in what positions and in what form would like to see your ad. Coming to a design website and asking help stealing plans for a boat currently in commercial production is generally considered bad form. Location: Eustis, FL I don't know of any free aluminum, welded jon boat plans available.
Location: Washington 6 foot wide plus the flare to the sides generally comes out to a boat about 8 feet wide, which is the maximum trailerable width in most states. Location: New Orleans It depends on what type of ribs, and the attachment methods, and how much you are willing to spend.
In a large commercial shop you would likely use a hydrolics press to stamp the shapes out of aluminium plate. For a one off build, either a Hand break machine if you have one available, or if not cut each piece, then weld it into place.
Location: Washington Where I come from braces are what dentists use to straighten your teeth. Location: Seattle, Washington, USA Then there is the Brace and bit when you are drilling a hole by hand using a Wood Auger Bit. Location: The Loft Good one Saildude, there is only one tool there and yet a brace is classed as two? Location: Seattle, Washington, USA The Brace by it's self does not do much so you need the bit for the Brace to be much more than a wall hanging (OK you can also get countersinks, screwdrivers etc. Seattle is Mostly sunny today and Sunday - high about 66 degrees - - But if we wait until Tuesday or so the showers should be back to normal - Saildude View Public Profile View Saildude's Website View Saildude's Gallery Find all posts by Saildude Page 1 of 2 1 2 > « Am I crazy?
Freestyle Composites heavy envolvement in the marine industry extends back to 1976 and their expertise in boat building and leisure craft repairs continue to be a core service the company provides. As composite engineers Freestyle Composites construct and repair all types of vessels from small pleasure craft to large commercial vessels. Our technicians are highly trained and work closely with international companies to keep up to date with the composite industry, for problem solving, materials and better production techniques. The pic Im thinking of has two heavy unrigged clinker rowed boats on the beach and I think a group of women with nets and fish baskets, I have a print here, somewhere but cannot find it. Try scrolling down, clicking on the 'older posts' button at the bottom of this page - or try the search gadget! The builder asks Derek to host a workshop, not the other way around, and the builder doesn't pay for the workshops. The traditional material was the wood from breadfruit trees that were abundant on the islands, but it is not available today due to loss of undeveloped land and the greatly increased instances of super-typhoons in the last 20 years that knock down the taller trees.


The fact that the material isn't wood is not ideal, but on the other hand the Chamorro flying proa is a Chamorro invention and the design is unique in the world, so we reason that whatever material is used, it is a Chamorro proa. The idea is that anyone who wants to build a flying proa can just pay for the materials and go to the canoe house to use the table, tools, etc.
I know he has been doing foam core cats and tris since Toria in the 60s, one of of not the earliest foam core multies. So make up such a frame for a 40 footer, and I can bend it by hand, by simply putting one end against the wall and pushing on it. By itself, it is as floppy as hell, but once it is tacked down, with a 7 inch camber, with no structural members under it, six guys can stand and jump on it, without it buckling or deforming in any visible way.
It will first twist the plating, second will wooble the deck, and third the mast will go thru the hull.
I thought you knew that, but evidently you don't, since your very mean attack on my resume prove it. There, a dumb welder with insufficient and outlasted licenses can blame a well established boatbuilder of being a novice.
Their excitement , and enthusiasm in seeing a hull take shape in a few hours from flat plate, is contagious.
The city although has not been promoted as such by the local media and the government of Pakistan has a lot to offer for tourists. The gient wooden boats which are made in Karachi almost solely by hand with minimum machines are exported to Dubai for transportation as well as for making Dhow Cruise Dinner restaurants in Dubai Creek. Lake skiffs, pirogues, and bateaux are constructed as part of three semesters annually, and several shorter classes offered periodically.
Call us or visit our Gift Shop to get one of these beautiful posters, or one of the other Wooden Boat Festival posters.
I would suggest thinking of either buying a boat from the manufacturer, likely for what it would cost to build, or looking for free plans of a similar type of boat. The first is that maximum width of a boat on a trailer is 8' so any wider than this means you have to have special permits.
You could probably do most of the entire construction of a boat in just a few steps, though the set up cost would be million.
A hand break is usually found in even small metal fabrication shops, so you might be able to either pay them to form the sheets, or rent access to the machine for a relatively small fee. The one in San Diego, with a make-shift tarp sail that is only 70% of the proper size has hit 15 knots.
Resale value is the difference between what you can get for a boat and what she cost you in the first place. The attached framing limits damage and provides safe stress paths which is not only a strength and stiffness issue but also a fatigue issue. Since your method of framing is floppier for being pre-stressed then the hull structure will buckle more easily.
It does develop soft spots once the longitudinal welds are done , which is why I force flat bar beams up under it, on 18 centres , along the direction of the curve, like longitudinals , not fore and aft, across the curve , like transverse frames.
The deck is weakest point, the design need more attention since some renforcement can be detrimental localizing the stress inset of diffusing it. Our regular boat building classes are every Monday and Wednesday evening from 6pm to 9pm, excluding most holidays. Unless you are used to doing this type of work, asking them to do it is probably a better option though.
This proa is currently in the San Diego Maritime Museum, on the water until the end of July. We will build a 25 foot proa hull and outrigger and there will be demonstrations of how to build catamaran hulls.
The reason for that number is that in the old days, in the 1600s and 1700s, Europeans arriving in the islands reporting seeing hundreds of proas on the water. Now we want to build more using modern materials that are less expensive and for this we have chosen the KSS method of foam resin infusion (foam infused with polyester resin sandwiched between two layers of fiberglass using vacuum bagging). Any material has to be shipped in and foam, resin and glass is much cheaper to ship than wood due to the weight and container space.
It's not how much material you put in a structure that makes it effective, it's where you put the material.
Highest strake stays in one piece, lower strakes are cut in the middle and ends of the plates are connected. My current boat, with about three inches of outside curve , goes thru a head sea far more smoothly, with far less resistance.The buildup of buoyancy is far less sudden. The cost for the four day workshop is $750 for the entire workshop and includes coffee and lunch each day. The sailing tradition was completely lost during Spanish colonization when the Chamorro population dropped from 80k to 2k people due to disease and war, and the Spanish forced all the Chamroros off the 14 northern islands and onto Guam where they were forbidden to build proas or even to sail off the reef. The deck is weakest point, the design need more attention since some renforcement can be detrimental localizing the stress inset of difusing it. It is of course possible to weld three plates together to get a 12' wide plate, but this is again additional cost and complexity. So you can get a reduced puncture resistance if you want, but I'd still put the required framing in.
If you've never built anything out of fiberglass, this workshop will give you the practical skills and knowledge to build a boat. It is where you put the material ,and for puncture resistance, it's best put in plate thickness.



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