Some controversy surrounded Greening's Rainbow IV, built in 1924. The Gold Cup Race rules barred hydroplanes, but allowed lapstrake hulls. Rainbow IV was a lapstrake boat, but was planked crosswise rather than fore-aft, thereby giving her a number of steps on the bottom of her hull. While the design was challenged, it was eventually allowed and Greening ran the race, winning on points.
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Thompson Bros. Boat switched from primarily making cedar strip built hulls to plywood lapstrake boats. The greater horsepower outboard motors were better suited to the very strong yet lightweight lapstrake hulls. Effective 1 January 1959 the three boat operations owned by the Thompson family at Peshtigo, Cortland, and Oconto were split amongst family branches. Thompson Bros. Boat Mfg. Co. at Peshtigo became property of Ray Thompson and family. The former branch at Cortland, New York became Thompson Boat Company of New York, Inc.
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The hull has a lapstrake appearance. The thwarts and dagger-board trunk are fiberglass inserts glassed into the hull and are watertight. It is cat rigged with a Bermuda mainsail. A transom notch allows sculling.
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The Playmate was a wooden lapstrake rounded-bottom hull with all models built in 1935 and later powered by a Buchanan Midget 25-horsepower inboard engine. The boat was redesigned in 1939 with forward seats and a windshield, along with a slightly higher hull, which was the configuration it retained for the rest of the production run. In 1940 Duke introduced two larger launches; 19 and 21 feet long, with cedar lapstrake bottoms and mahogany topsides and decks. The smaller models were powered by a 4-cylinder Buchanan 57-horsepower or Gray 75-horsepower engine.
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He established T & T Boats, Inc. and a factory was built in Wausaukee, Wisconsin. T & T also made wooden lapstrake outboard and inboard/outboard boats. It lasted until a liquidation auction signaled the firm's end in May 1965.
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The hull was a four plank lapstrake hard-chine design, with each plank glued and fastened to the frames. Also the Seamew was designed to have a small inboard engine fitted to the bilge. Plans are not currently available.
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Local lumber was used, harvested in along the banks of the Peshtigo River. The first product was a modified lapstrake canoe, dubbed the "Anti-Leak" canoe by the brothers. Thompson badge on ogee-style deck Thompson Bros. Boat Mfg.
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There are basically two types of drascombe. There are undecked open day sailers and one or two- berth weekenders. They were originally designed and built in marine plywood using glued lapstrake construction. As they became more popular, they were then manufactured in GRP.
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In 1953 second generation Thompson family men (Ray, Glenn, Roy, Grant, Bob, and Ted, Jr.) started Cruisers, Inc., a builder of wooden lapstrake boats at Oconto, Wisconsin. Cruisers was formed with the full knowledge, encouragement, and cooperation of the elder Thompson men and Thompson Bros. Boat Mfg.
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It had no sail. It was of lapstrake construction fastened with iron nails. The bow and stern had slight elevation. The keel was a flattened plank about twice as thick as a normal strake plank but still not strong enough to withstand the downwards thrust of a mast.
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Peter Russell. Prince Henry 'the Navigator': A Life. (Yale University Press, United States: 2001)p. 227 Atlantic sailors tended to utilize a stouter, heavier Baltic cog, lapstrake, planked cargo ship with a single square sail that had axial stern rudders that was meant to help in the stormy waters they were accustomed to.
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Company in 1904 in nearby Peshtigo, Wisconsin. The company was originally known as "Cruisers Incorporated", or "Cruisers Inc." for short. They set up operations in the former Holt Lumber planing mill in Oconto. In the first year of operation, Cruisers constructed 14- and 16-foot lapstrake boats, and sold them to the Thompson Bros.
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Charlie Duke died in 1954. In 1957 the company expanded the 19-foot model to 20 feet and installed a larger, 100-horsepower engine. Customers found, however, that the lapstrake hull did not withstand the higher speeds well, so in 1961 the design was changed to a seam and batten construction with a hard chine. This new style continued in production until 1968.
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A ship normally used about of iron nails in a long ship. In some ships the gap between the lower uneven futtock and the lapstrake planks was filled with a spacer block about long. In later ships spruce stringers were fastened lengthwise to the futtocks roughly parallel to the keel. Longships had about five rivets for each yard () of plank.
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Lapstrake hull schematic Working up from a stout oaken keel, the shipwrights would rivet the planks together using wrought iron rivets and roves. Ribs maintained the shape of the hull sides. Each tier of planks overlapped the one below, and waterproof caulking was used between planks to create a strong but supple hull. Remarkably large vessels could be constructed using traditional clinker construction.
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The lapstrake-style hull has a spooned raked stem, a rounded transom, a transom-hung, wooden rudder controlled by an ash wood tiller and a fixed triple keel. It has a central long keel and two side bilge keels, allowing it to remain upright when left high and dry at low tide. It displaces and weighs when fully equipped. Foam buoyancy is fitted.
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Viking ships varied from other contemporary ships, being generally more seaworthy and lighter. This was achieved through use of clinker (lapstrake) construction. The planks from which Viking vessels were constructed were rived (split) from large, old-growth trees—especially oaks. A ship's hull could be as thin as one inch (2.5 cm), as a split plank is stronger than a sawed plank found in later craft.
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Boat Mfg Co. with the Thompson name badge on the hulls. The first shipment left the Oconto factory on November 18, 1953. The first cabin-cruiser model was a 19-foot 3-inch lapstrake boat, which was introduced at the 1954 New York Boat Show; she featured a sink, alcohol stove, water closet, cushioned bunks to sleep four, cabin lights and a collapsible table. In 1956, the first Cruisers product catalog debuted. The company was producing 60 boats per week then, and the work force had grown from 20 to 101, over 5 times its size, in three years. By 1961, 300 people were employed at the company. At this time they were producing 12 different models, ranging from 14 feet to 20 feet long. Cruisers claimed to be the foremost lapstrake boat builder in the world. In 1959 and 1960, they made 3,000 boats annually.
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The garboard planks are narrow and remain only slightly wider to take the turn of the bilge. The topside planks are progressively wider. Each oak plank is slightly tapered in cross section to allow it to overlap about 30mm the plank above and below in normal clinker (lapstrake) style. Iron rivets are about 180 mm apart where the planks lie straight and about 125 mm apart where the planks turn.
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The whaleboat was originally a lapstrake design, clearly in the Northern European building tradition that created the longship and the yole. Its "superior handling characteristics soon made it a popular general-purpose ship's boat"."whaleboat". Encyclopædia Britannica, January 1 – December 31, 2013. Retrieved April 11, 2014 In the first half of the 20th century, many navies carried whaleboats on their warships, such as the 27ft whalers used in the Royal Navy.
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Accessed June 19, 2015. In 1987, he created one of his best-known pieces, "Lapstrake," for CBS Plaza in New York City. His largest work is the Houston Police Officer's Memorial, which was installed in 1990 in Houston, Texas. In 1995, he created three rose-colored granite works for the entrance to the Edwin A. Ulrich Museum in Wichita, Kansas, which are entitled Granite Landscape, Granite Weaving, and Fountain Wall.
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They have been carbon dated to the years 5,210-4,910 BCE and they are the oldest known boats in Northern Europe. In Scandinavia, later models increased freeboard (and seaworthiness) by lashing additional boards to the side of the dugout. Eventually, the dugout portion was reduced to a solid keel, and the lashed boards on the sides became a Lapstrake hull. In the United Kingdom, two log boats were discovered in Newport, Shropshire and are now on display at Harper Adams University Newport.
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Nearly all longships were clinker (also known as lapstrake) built, meaning that each hull plank overlapped the next. Each plank was hewn from an oak tree so that the finished plank was about thick and tapered along each edge to a thickness of about . The planks were radially hewn so that the grain is approximately at right angles to the surface of the plank. This provides maximum strength, an even bend and an even rate of expansion and contraction in water.
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University of Vermont 8+ oar shell Originally made from lapstrake wood, shells are now almost always made from a composite material for strength and weight advantages. The first composite shells were made from a form of papier-mâché and became popular in the 1870s. These paper shells were sold world-wide by the Waters Paper Boat Factory of Troy, New York. The next evolution of rowing shells were mainly created from thin plywood sandwiching a cardboard honeycomb structure with a fiberglass outer hull.
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The Seagull featured a lifting keel and ballast stub which weighed – the use of such a retractable keel at the time was seen as unusual. The keel was raised and lowered by means of a winch mechanism, which was situated in the cockpit in early boats but moved to the cabin on later kits and builds. The hull was a four plank lapstrake hard-chine design, with each plank glued and fastened to the frames. Plans are not currently available but some owners are working on this.
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However, efforts were made to drain, pump out and right the ship, and when these failed attention turned to salvaging the accessible timber and iron (for reuse), along with removing larger items such as anchors, guns and rigging. The salvaging of the vessel involved hacking at the upper works with axes and removing substantial amounts of the lapstrake planking, framing and internal timbers. The salvaged material would have been readily reusable in other ships or building works. During this salvage work, numerous disarticulated timbers accrued in the hold of the vessel.
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The Nordland boat has a clinker, or lapstrake hull design and has its rudder on the sternpost. Its length varies from 14 to well over 40 feet and usually has a length to beam ratio of 3-1 to 4-1. It has a high prow and stern, shallow keel, v-hull and has an inboard gunwale, which can be used to drain off the fishing nets when they are drawn on board. Some of the larger Nordlanders have a detachable cabin that is used for shelter, often having a wood-burning stove inside.
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Clinker was the predominant method of ship construction used in Northern Europe before the carvel. In clinker built hulls, the planked edges overlap; carvel construction with its strong framing gives a heavier but more rigid hull, capable of taking a variety of sail rigs. Clinker (lapstrake) construction involves longitudinal overlapping "riven timber" (split wood) planks that are fixed together over very light scantlings. A carvel boat has a smoother surface which gives the impression that it is more hydrodynamically efficient since the exposed edges of the clinker planking appear to disturb the streamline and cause drag.
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MacGregor was a champion marksman but turned to boating when a railway accident left him unable to hold a rifle steady. The boat he designed was a 'double-ended' kind of canoe inspired by the Northern American kayaks, but built in Lambeth of lapstrake oak planking, decked in cedar covered with rubberised canvas with an open cockpit in the center. It measured 15 feet long, 28 inches wide, nine inches deep and weighed 80 pounds (36 kg) and was designed to be used with a double-bladed paddle. He named the boat Rob Roy after the celebrated Scottish outlaw of the same name, to whom he was related.
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Arques students working on a Black Cat 15 foot lapstrake daysailor designed by the school The Arques School of Traditional BoatbuildingArques School of Traditional Boatbuilding website opened in June 1996 within the Arques Trust property in the Marinship District of Sausalito. It was founded by Bob Darr, who is currently the Program Director and Head Instructor. With a core apprenticeship program of just six students, it is a small school dedicated to developing craftsmen skilled in the art of building boats in the traditional plank on frame methods. The school owes its existence to an endowment provided by Donlon Arques who laid the groundwork for the school prior to his death in 1993.
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He was introduced to the canoes and kayaks of the Native Americans on a camping trip in 1858, and on his return to the United Kingdom constructed his own 'double-ended' canoe in Lambeth. The boat, nicknamed 'Rob Roy' after a famous relative of his, was built of lapstrake oak planking, decked in cedar covered with rubberized canvas with an open cockpit in the center. He cruised around the waterways of Britain, Europe and the Middle East and wrote a popular book about his experiences, A Thousand Miles in the Rob Roy Canoe. In 1866, Macgregor was a moving force behind the establishment of the Royal Canoe Club, the first club in the world to promote pleasure cruising.
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Stern-mounted rudder Cogs were typically constructed largely of oak, and had full lapstrake, or clinker, planking covering their sides, generally starting from the bilge strakes, with double-clenched iron nails for plank fastenings. At the stem, chases are formed; that is, in each case, the land of the lower strake is tapered to a feather edge at the end of the strake where it meets the stem or stern-post. This allows the end of the strake to be fastened to the apron with the outside of the planking mutually flush at that point and flush with the stem. This means that the boat's passage through the water will not tend to lift the ends of the planking away from the stem.
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