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Prindle 18
The Prindle 18 is an American catamaran sailing dinghy that was designed by Geoffrey Prindle as a racer and first built in 1977.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 94-95. Houghton Mifflin Company, 1994. Geoffrey Prindle had started out as a surfboard manufacturer, but was also successful racing Hobie 14 catamarans and started his own line of boats, starting with the Prindle 16. Production The design was initially built by Surfglas, a surfboard manufacturer that changed its name to Prindle Catamarans. The boat was also built by Lear Siegler Inc. in the United States. A total of 2,300 boats were built, but it is now out of production. The design was replaced in the manufacturer's line by the Prindle 18-2 in 1983, a more conventional design, with straight hulls and centerboards. Design The Prindle 18 is a recreational sailboat, built predominantly of fiberglass. It has a fractional sloop rig with aluminum spars, a ...
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Geoffrey Prindle
Geoffrey, Geoffroy, Geoff, etc., may refer to: People * Geoffrey (name), including a list of people with the name * Geoffroy (surname), including a list of people with the name * Geoffrey of Monmouth (c. 1095–c. 1155), clergyman and one of the major figures in the development of British history * Geoffrey I of Anjou (died 987) * Geoffrey II of Anjou (died 1060) * Geoffrey III of Anjou (died 1096) * Geoffrey IV of Anjou (died 1106) * Geoffrey V, Count of Anjou (1113–1151), father of King Henry II of England * Geoffrey II, Duke of Brittany (1158–1186), one of Henry II's sons * Geoffrey, Archbishop of York (c. 1152–1212) * Geoffroy du Breuil of Vigeois, 12th century French chronicler * Geoffroy de Charney (died 1314), Preceptor of the Knights Templar * Geoffroy IV de la Tour Landry (c. 1320–1391), French nobleman and writer * Geoffrey the Baker (died c. 1360), English historian and chronicler * Geoffroy (musician) (born 1987), Canadian singer, songwriter and multi-instrume ...
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Hobie 14
The Hobie 14 is an American catamaran sailing dinghy that was designed by Hobie Alter and first built in 1967.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 38-39. Houghton Mifflin Company, 1994. The design was developed into the Hobie 16 in 1971. Production The Hobie 14 was the initial design produced by Hobie Cat and led to a large family of similar boats that have been produced in numbers exceeding 200,000. The design was built by Hobie Cat in the United States from 1967 until 2004 and in Europe until the late 2000s, but it is now out of production. Design The Hobie 14 is a recreational sailboat, built predominantly of fiberglass over a foam core. In its base model it has a fully battened catboat rig with a rotating mast and aluminum spars. A jib can be added to make it a fractional sloop rig and a trapeze is optional. The asymmetrical hulls have spooned raked stems, vertical transoms and dual transom-hung rudders controlle ...
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Trampoline (multihulls)
A sailboat trampoline is a very high strength material under high tension, woven together in strips to provide flat areas in between hull members on catamarans or trimarans. This results in a lightweight decking that allows water to pass through, as holes are intentionally left in the weave for this purpose. It allows the crew to move about on it and most trampolines also serve as tension components of the sailboat structure along with the rest of the rigging Rigging comprises the system of ropes, cables and chains, which support a sailing ship or sail boat's masts—''standing rigging'', including shrouds and stays—and which adjust the position of the vessel's sails and spars to which they are .... References {{Reflist Sailboat components ...
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Tiller
A tiller or till is a lever used to steer a vehicle. The mechanism is primarily used in watercraft, where it is attached to an outboard motor, rudder post or stock to provide leverage in the form of torque for the helmsman to turn the rudder. A tiller may also be used in vehicles outside of water, and was seen in early automobiles. On vessels, a tiller can be used by the helmsman directly pulling or pushing it, but it may also be moved remotely using tiller lines or a ship's wheel. Rapid or excessive movement of the tiller results in an increase in drag and will result in braking or slowing the boat. Description A tiller is a lever used to steer a vehicle. It provides leverage in the form of torque to turn the device that changes the direction of the vehicle, such as a rudder on a watercraft or the surface wheels on a wheeled vehicle. A tiller can be used by directly pulling or pushing it, but it may also be moved remotely using tiller lines or a ship's wheel; some kayaks wh ...
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Reverse Transom
A transom is the vertical reinforcement which strengthens the stern of a boat. This flat termination of the stern is typically above the waterline. The term was used as far back as Middle English in the 1300s, having come from Latin ''transversus'' (transverse) via Old French ''traversain'' (set crosswise). The stern of a boat is typically vertical. It can be raked such that there is an overhang above the water, as at the bow. A reverse transom is angled from the waterline forwards. Transoms can be used to support a rudder, outboard motor, or as a swimming and access platform. Gallery File:The Bermuda cedar (Juniperus bermudiana) transom of Spirit of Bermuda, 2016.jpg, The Bermuda cedar transom of the Spirit of Bermuda File:Sea Scooter transom.jpg, Flat transom on a dinghy with mount points for a rudder. File:Coble on shore at Boulmer (2) - geograph.org.uk - 1381157.jpg, Raked transom with rudder mount points. File:CS 30 Sailboat Kelsea 0297.jpg, Reverse transom with rudder ...
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Raked Stem
The stem is the most forward part of a boat or ship's bow and is an extension of the keel itself. It is often found on wooden boats or ships, but not exclusively. Description The stem is the curved edge stretching from the keel below, up to the gunwale of the boat. It is part of the physical structure of a wooden boat or ship that gives it strength at the critical section of the structure, bringing together the port and starboard side planks of the hull. Plumb and raked stem There are two styles of stems: ''plumb'' and ''raked''. When the stem comes up from the water, if it is perpendicular to the waterline it is "plumb". If it is inclined at an angle to the waterline it is "raked". (For example, "The hull is single decked and characterized by a plumb stem, full bows, straight keel, moderate deadrise, and an easy turn of bilge.") Stemhead Because the stem is very sturdy, the top end of it may have something attached, either ornamental or functional in nature. On small ...
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Spreader (sailboat)
A spreader is a spar on a sailing boat used to deflect the shrouds to allow them to better support the mast. The spreader or spreaders serve much the same purpose as the crosstrees and tops Total Operations Processing System (TOPS) is a computer system for managing railway locomotives and rolling stock, known for many years of use in the United Kingdom. TOPS was originally developed between the Southern Pacific Railroad (SP), S ... in a traditional sailing vessel. Spreader design and tuning can be quite complex. The spreaders may be fixed (rigid) or swinging (pivoted at the mast). The purpose of the spreaders is to control, by either limiting, or inducing, bend into the spar so that when the windward shroud is loaded the mast achieves the desired bend characteristics. The spreaders may be designed to be angled in a way that either forces bend in to the spar or reduces bend, depending on the desired results. Sailing rigs and rigging {{Navy-stub de:Saling fr:Barre ...
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Sail Batten
On sailboats, a sail batten is a flexible insert in a sail, parallel to the direction of wind flow, that helps shape its qualities as an airfoil. Battens are long, thin strips of material, historically wooden but today usually fiberglass, vinyl, or carbon fiber, used to support the roach of a sail. They are also used on tall ships to form the ladders up the shrouds in a fashion similar to ratlines. History A '' junk'' is an ancient Chinese sailing ship design that is still in use today. Junks were used as seagoing vessels as early as the 2nd century AD and developed rapidly during the Song Dynasty (960–1279). Their rigs featured full-length battens that facilitated short-handed sail handling, including reefing. Applications in sails The most common use of sail battens is in the roach of a mainsail. The batten extends the leech past the line that runs from the head and the clew of the sail to create a wider sail towards the top. Cruising sailboats may have four to six batt ...
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Mainsail
A mainsail is a sail rigged on the main mast of a sailing vessel. * On a square rigged vessel, it is the lowest and largest sail on the main mast. * On a fore-and-aft rigged vessel, it is the sail rigged aft of the main mast. The sail's foot is normally attached to a boom. (In extremely heavy weather, the mainsail may be lowered, and a much smaller trysail hoisted in its place). Historical fore-and-aft rigs used a four-sided gaff rigged mainsail, sometimes setting a gaff topsail above it. Whereas once the mainsail was typically the largest sail, today the mainsail may be smaller than the jib or genoa; Prout catamarans typically have a mainmast stepped further aft than in a standard sloop, so that the mainsail is much smaller than the foresail. Bermuda rig The modern Bermuda rig uses a triangular mainsail aft of the mast, closely coordinated with a jib for sailing upwind. A large overlapping jib or genoa is often larger than the mainsail. In downwind conditions (with t ...
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Fully-battened
On sailboats, a sail batten is a flexible insert in a sail, parallel to the direction of wind flow, that helps shape its qualities as an airfoil. Battens are long, thin strips of material, historically wooden but today usually fiberglass, vinyl, or carbon fiber, used to support the roach of a sail. They are also used on tall ships to form the ladders up the shrouds in a fashion similar to ratlines. History A '' junk'' is an ancient Chinese sailing ship design that is still in use today. Junks were used as seagoing vessels as early as the 2nd century AD and developed rapidly during the Song Dynasty (960–1279). Their rigs featured full-length battens that facilitated short-handed sail handling, including reefing. Applications in sails The most common use of sail battens is in the roach of a mainsail. The batten extends the leech past the line that runs from the head and the clew of the sail to create a wider sail towards the top. Cruising sailboats may have four to six batt ...
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Aluminum
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has a great affinity towards oxygen, and forms a protective layer of oxide on the surface when exposed to air. Aluminium visually resembles silver, both in its color and in its great ability to reflect light. It is soft, non-magnetic and ductile. It has one stable isotope, 27Al; this isotope is very common, making aluminium the twelfth most common element in the Universe. The radioactivity of 26Al is used in radiodating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ is small and highly charged; as such, it is polarizing, and bonds aluminium forms tend towards covalency. The strong affinity towards ox ...
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Fiberglass
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth. The plastic matrix may be a thermoset polymer matrix—most often based on thermosetting polymers such as epoxy, polyester resin, or vinyl ester resin—or a thermoplastic. Cheaper and more flexible than carbon fiber, it is stronger than many metals by weight, non- magnetic, non-conductive, transparent to electromagnetic radiation, can be molded into complex shapes, and is chemically inert under many circumstances. Applications include aircraft, boats, automobiles, bath tubs and enclosures, swimming pools, hot tubs, septic tanks, water tanks, roofing, pipes, cladding, orthopedic casts, surfboards, and external door skins. Other common names for fiberglass are glass-reinforced plastic (GRP), glass-fiber reinforced plastic (GFRP) or GF ...
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