TedsWoodworking Plans and Projects

DIY Woodworking Projects

Tag: Maritime

  • “The Teignmouth Puffin” – A Cornish Shrimper 19

    The Cornish Crabber Shrimper 19 is a popular sailing vessel that has been designed by Roger Dongray. It was first built in 1979 and has enjoyed a successful run with over 1000 units manufactured. The boat has a keel/cbrd hull type and a gaffhead sloop rigging type. It measures 22’6” in length overall and has a displacement of 2350lb. It also has a ballast of 700lb and a sail area of 194ft2.

    The construction of the Shrimper 19 is made from hand-laid solid GRP hull with no foam core. It also has an integral centerplate case laminated as part of the complete hull structure. The interior bunk and forepeak moulding are bonded into the hull with additional structural bulkheads that have been bonded to both the hull and deck mouldings. The standard colors are off white, dark blue or dark green. The hull and deck joint is by way of an overlap or ‘Biscuit Tin Lid’ with GRP bonding.

    The rudder of the Shrimper 19 is transom hung on two stainless steel hangings that are bolted through the transom with hardwood backing pads. The rudder is constructed from laminated plywood with a stainless steel lifting drop plate. The engine beds are incorporated into the GRP bunk moulding with mild steel mounts bonded into the bed design which incorporates an oil drip tray.

    Ballast is by way of iron punchings encapsulated in resin inside the hull keel moulding. A galvanised steel centerplate forms part of the ballast with a stainless steel lifting wire leading to a winch lifting system operated from the cockpit. The deck construction is hand-laid GRP with Balsa core in way of horizontal load areas. Hardwood pads are used under deck fittings and stress points.

    The cockpit of the Shrimper 19 has a cockpit locker with hand-laid lids and Balsa core. There is integrated non-slip on horizontal surfaces with an optional two-tone color. A cockpit drain is located in the center of the main footwell with additional drainage from the seats. A central watertight locker offers general storage or houses the diesel engine when it is fitted.

    The deck fittings of the boat include bespoke deck fittings including bowsprit, tabernacle and chain plates that are made from stainless steel. Four aluminum deck cleats are positioned aft and amidships with two fairleads feeding a teak Sampson post forward. All sail controls are led aft to rope clutches/jammers with a single halyard winch to starboard. Adjustable jib and mainsheet cars are also included. Access below is via a teak-lined sliding companionway hatch and split plywood/Perspex washboards. Extra ventilation is provided by an aluminum forward hatch.

    There are two aluminum fixed ports fitted, one each in the hull topsides. Chain plates are in stainless steel and through bolted on the hull sides. Ventilation is via a washboard vent and opening forward hatch. Fuel filler and tank vent are also included.

    The mainmast of the Shrimper 19 is laminated in Sitka Spruce and treated with Sikkens Cetol including a stainless steel mast band to take Cap shrouds, jib, and mainsail halyards. All deck mounted on a substantial stainless steel tabernacle. The main boom is laminated in Sitka Spruce and treated with Sikkens Cetol including a Stainless steel gooseneck fitting, kicker, and mainsheet bands and all associated reefing line leads/terminals. The bowsprit is laminated in Sitka Spruce and treated with Sikkens Cetol including a Stainless steel pivot fitting, end plate and bobstay take off points. The gaff is laminated in Sitka Spruce and treated with Sikkens Cetol including a Stainless steel gaff collar with rubber protection on bearing surface, wire hoist span and block.

    The standing rigging of the boat includes cap shrouds, lower shrouds, and forestay in 4mm 1 x 19 stainless steel wire with swaged ends. Chromed rigging screws are also included. The jib is mounted on a reefing spar and controls led aft to the cockpit. The running rigging includes main throat/peak halyards – 6mm braid, jib and staysail halyards – 6mm braid, main topping lift – 6mm braid, mainsail reefing lines – 6mm braid, mainsail outhaul – 6mm braid, and mainsheet and jib sheets – 10mm sheet rope. All associated blocks for purchase tackles are also included.

    The sails of the Shrimper 19 are made of Dacron in tan or cream. The mainsail has two reef points with tie-in lacing, and luff and gaff lacing as required. The jib is also made of Dacron in tan or cream with wire luff and tell-tales. The boom cover is made of maroon, or cream acrylic with fixings to allow for topping lift and mainsheet take off. All sails are supplied with sail numbers, logo, and ties.

    The outboard version of the Shrimper 19 has a teak engine mounting with stainless brackets. The engine well hull blank is also included. The GRP molded fuel tank stowage and fuel lead splitter through aft locker compartment (fuel lead not supplied as standard). The inboard version, on the other hand, has a 1” stainless steel shaft that is fitted, connected to the engine via a coupling and fitted with a Tides Marine ‘lip seal’ gland. The Yanmar 1GM10 9hp marine diesel engine is also included in this version as well as a 55 amp (12V) alternator fitted to the engine.

    The boat has a 12-volt DC system that includes an engine battery of one 12 volt 55 amp/hour. When charging, the main engine is used with a 35 amp (at 12 volts) alternator. An optional switch panel is also included in boats that have additional electronics fitted.

    Miscellaneous standard equipment of the Shrimper 19 includes a winch handle, a bilge pump handle stowed in the aft cockpit locker, and a fire extinguisher situated down below. The interior joinery is constructed from high-quality materials and in accordance with good yacht practice. Bulkheads and side back linings are made from plywood. All cabin woodwork is finished in a mix of painted bulkheads and varnished trim. Rubber textured soles are included throughout the boat, and there is a choice of soft or wipe-down plastic upholstery available.

    Overall, the Cornish Crabber Shrimper 19 is a well-made and durable sailing vessel that has been designed with comfort, safety, and practicality in mind. Its high-quality construction and excellent performance make it a popular choice among sailors of all levels of experience.

    Posted by The Shaldives on 2022-08-21 15:25:23

  • “Cruising the Waterfront of Port Townsend WA with BRYONY”

    BRYONY cruising the Port Townsend WA waterfront

    The Northwest School of Wooden Boatbuilding is a non-profit vocational school located in Port Hadlock, Washington. Founded by Robert Prothero, the school’s mission is to teach and preserve the fine art of wooden boatbuilding and traditional maritime crafts. In 1983, the school built the cutter BRYONY under Prothero’s direction. Recently restored, BRYONY was originally owned by Kitty Reithel, who wrote an article about the school for WoodenBoat magazine in which she praised not just the boats the school built, but the craftsmen who built them. The school can be found online at www.nwboatschool.org, by email at info@nwboatschool.org, or by phone at 360-385-4948.

    Posted by Northwest School of Wooden Boatbuilding on 2012-09-26 14:59:21

  • Craftsman Delighted with Discovery of High-Quality Driveshaft // 0551

    A Craftsman, happy with his find: an excellent driveshaft // 0551

    There are a variety of factors that can contribute to the lifespan of a marine vessel or component, including the materials used in its construction, the quality of its maintenance and upkeep, and the stresses placed upon it during operation. In the case of a high-speed hydrofoil, which uses wings or foils to lift the vessel out of the water at high speeds, these stresses can be exceptionally high, leading to wear and tear that may necessitate replacement of certain components over time.

    One such component is the shaft, which connects the vessel’s engine to its propeller(s) and transmits power and rotational force to drive the vessel through the water. In the case of the unnamed hydrofoil in question, which is now being retired and repurposed for use in a schooner, its shaft has been replaced with a new one as part of the refurbishment process. While it may seem unusual to reuse a component from a vastly different type and size of vessel, the shaft has likely been designed and constructed to withstand a high degree of stress and wear, making it a potentially valuable addition to the schooner’s propulsion system.

    Overall, the story of the hydrofoil’s repurposed shaft is an interesting illustration of the ways in which marine components can have long and varied lifetimes, being passed from one vessel to another as they wear out or become obsolete. It also speaks to the ingenuity and resourcefulness of marine engineers and designers, who are constantly striving to create efficient, reliable, and sustainable vessels that can withstand the rigors of marine environments over many years of operation.

    Posted by markiisi on 2016-04-09 14:59:29

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    The Northwest School of Wooden Boatbuilding offers a Basic Boatbuilding course where students learn how to use a lathe to create a pearwood mallet. Using a lathe is an important part of boatbuilding and helps to create various pieces of equipment, including mallets.

    In this particular project, students begin with a block of pearwood, which they must transform into the desired shape for their mallet. The lathe is an essential tool in this process, as it allows the student to create a symmetrical, uniform shape for the mallet.

    The first step in the project is to prepare the pearwood block for turning. The block is cut to the correct size using a bandsaw and then sanded down to a smoother finish. This helps to protect the lathe from any rough edges that may damage it. Once the block is prepped and ready, it is mounted onto the lathe and the turning process can begin.

    The actual turning process takes place in stages. With each pass, the student uses a combination of hand tools and the lathe to create a specific shape for the mallet. This process can take several hours, and requires a great deal of patience and precision.

    The student begins by creating a basic round shape for the mallet, using a roughing gouge to remove the bulk of the material. Next, they switch to a skew chisel to create a more defined shape for the handle. Once the handle is shaped to their preference, they move onto creating the head of the mallet.

    The head of the mallet is typically wider than the handle, and has a flat top and bottom. The student uses a parting tool to create a groove around the circumference of the head, which will allow them to create a more detailed shape for the mallet. They use a skew chisel to create a tapered shape for the head, cutting away at the wood until they achieve the desired shape.

    Once the basic shape is achieved, the student can move onto more detailed work. This involves creating chamfers, or beveled edges, on the handle for comfort, as well as creating a more rounded shape for the head of the mallet. The final step is to sand and finish the mallet, which brings out the natural beauty of the pearwood and also protects it from damage.

    Overall, turning a pearwood mallet is an important demonstration project in the Basic Boatbuilding course at the Northwest School of Wooden Boatbuilding. It teaches students how to use a lathe, which is an essential tool for boatbuilding, and also provides them with a tangible piece of equipment that they can use in their future projects.

    Posted by Northwest School of Wooden Boatbuilding on 2012-11-12 01:29:52

  • Frontier of Rogues

    Rogue Frontier

    Rogue Frontier is a collaborative display by 24 members of RogueBricks, showcasing a mountainous western landscape reminiscent of Canada’s pioneer era. Members contributed their own unique modules to the display, including a fort with soldiers, a train station with a water tower, a small mining town with a sawmill, an Indigenous village, and more. The display was originally planned three years ago but was postponed due to the pandemic. It was finally exhibited at Bricking Bavaria 2022, where it won 1st place in both visitor and exhibitor voting. The team dedicated the project to Ben Tritschler, a member who passed away earlier this year.

    Posted by Vaionaut on 2022-12-02 19:16:05