Junk rig explained. Tabernacle. Untitled. "I can't wait for the oil wells to run dry, for the last gob of black, sticky muck to come oozing out of some remote well. Then the glory of sail will return. " -Triston Jones We did not fall in love with sailing or a particular type of sailboat. Instead we wanted to explorer, work, dive, salvage, charter, operated an ROV, and build things. We did not want to cruise from one bar to the next. So we sized the boat to fit the job, then we needed sails that one person could manage. Mast A 1251 sq ft sail in a 35 knot (40 mph) gust from a passing squall will sustain a 8,626 pounds of load. Mast Criteria #1 Strength - We have 3 mast and what we expect to be a very stiff boat when loaded so I don't see quick healing spilling load from the sails. . #2 Cost - We are a work boat, and not a charter cruise boat so it does not have to be pretty. #3 Speed of Construction - Laminating a mast from strips of wood is right out.
You can download this here: Mast_and_roll_inertia.pdf Steel Mast DIY Steel Mast. Junk Rig Comments. Junk sail on a Klepper kayak - part 2. Fitting a junk rig to a Klepper kayak - Part 2 The sail can be made of just about any cloth or plastic. The sail shown in the picture on the previous page is cut from a discarded surf-board sail. I must find a more modern discarded sail of the transparent plastic type for the bottom panel. At the moment I have to lift the boom by hand to see the oil tankers heading towards me. The battens are of bamboo. They are pushed into sleeves which are closed at the mast end. The sail plan and the dimensions of the three part mast. The mast is threaded through between the battens and the rope loops. The mast The mast is made from three sections cut from three masts from surf sails. All the mast segments and the rolled sail can be stowed in the boat, or behind the cockpit, and assembled at sea. The halyard must be held by a quick release cleat.
The sheet, a single line, is connected near the end of the boom, which is a piece of bamboo just like the other battens. The side keel How well does it sail? Junk Sails: A Tutorial. Reddish also says that he picked batten sizes which would give him about a 10% camber in normal sailing conditions. On our 10-foot sail, the battens would bend so that they were about 1 foot out of line near the middle of the sail. (Make sure the boom is stiff enough that it does not bend, however). Photos of traditional Chinese sails show some bending, especially when sailing to windward. Finally Reddish says he made each panel somewhat baggy simply by pushing it down in the middle as he attached the battens. The corners wrinkled some, he says, but that did not seem to cause any problems. This note comes from Bill Samson in Scotland. Dear Craig, I had a long telephone conversation with Vincent Reddish this evening.