A multihull is a ship or boat with more than one hull, whereas a vessel with a single hull is a monohull.
A sailboat or sailing boat is a boat propelled partly or entirely by sails smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture.
A light cruiser is a type of small- or medium-sized warship. The term is a shortening of the phrase "light armored cruiser", describing a small ship that carried armor in the same way as an armored cruiser: a protective belt and deck. Prior to this smaller cruisers had been of the protected cruiser model, possessing armored decks only. While lighter and smaller than other contemporary ships they were still true cruisers, retaining the extended radius of action and self-sufficiency to act independently across the world. Through their history they served in a variety of roles, primarily as convoy escorts and destroyer command ships, but also as scouts and fleet support vessels for battle fleets.
The Portsmouth Yardstick (PY) or Portsmouth handicap scheme is a term used for a number of related systems of empirical handicapping used primarily in small sailboat racing.
The Cruiser Tank Mk IV was a British cruiser tank of the Second World War. It followed directly on from the Tank, Cruiser, Mk III. The first Mk IVs were Mk IIIs with extra armour fitted to the turret. Later Mk IVAs were built with the complete extra armour. The tank was used in France in 1940 and in the early part of the war in North Africa, before being withdrawn from service. In total, 955 of these tanks were built.
The Hobie Cat is a small sailing catamaran manufactured by the Hobie Cat Company. Hobie's line of products ranges from surfboards to catamaran sailboats to kayaks and stand-up paddle boards, though the Hobie Cat Company is most famous around the world for its catamarans. Hobie also designed a very successful monohull, the Hobie 33.
A pentamaran is a multihull vessel with five hulls, a further extension of the ideas behind trimarans and catamarans.
A wingsail is a variable-camber aerodynamic structure that is fitted to a marine vessel in place of conventional sails. Wingsails are analogous to airplane wings, except that they are designed to provide lift on either side to accommodate being on either tack. Whereas wings adjust camber with flaps, wingsails adjust camber with a flexible or jointed structure. Wingsails are typically mounted on an unstayed spar—often made of carbon fiber for lightness and strength. The geometry of wingsails provides more lift, and a better lift-to-drag ratio, than traditional sails. Wingsails are more complex and expensive than conventional sails.
Dragonfly Trimarans is a line of trimaran sailboats built by the Quorning Boats shipyard in Skærbækvej, near Fredericia, Denmark.55°31′11.97″N9°38′8.08″E
Set in the crystal-clear waters of the Caribbean, powered by the cooling northeast trade winds and run by an experienced, innovative and friendly race team, the St. Maarten Heineken Regatta is four days of world-class racing in idyllic conditions appealing to a broad range of tastes. The four race committees provide custom-tailored racing for the thousands of sailors from more than 35 countries that come to race: from Olympic medalists and World Champions sailing Maxis and Performance Multihulls to holiday-makers on chartered Bareboats and live-aboard families cruising the Caribbean.
Farrier Marine is a catamaran and trimaran manufacturer based in Christchurch, New Zealand.
The F-27 Sport Cruiser is an American trailerable trimaran sailboat that was designed by New Zealander Ian Farrier in 1984-1985.
John Marples is a multihull sailboat designer who collaborates with Jim Brown.
Jim Brown is a multihull sailboat designer who collaborates with John Marples.
The cant of a railway track or camber of a road is the rate of change in elevation (height) between the two rails or edges. This is normally greater where the railway or road is curved; raising the outer rail or the outer edge of the road providing a banked turn, thus allowing vehicles to maneuver through the curve at higher speeds than would otherwise be possible if the surface is flat or level.
The Constant Camber 37 is a trimaran sailboat designed by John Marples in the 1980s.
Constant Camber 26 is a 26 ft (7.9 m) cruising sloop trimaran sailboat designed in the 1970s by John Marples featuring berths for two adults and two children. The constant camber hull is constructed using a single master template to produce each panel, resulting in a design with unchanging curvature, imparting extraordinary strength similar to an eggshell. The panels are laminated using a vacuum bagging technique, as described in Marples' article, "Backyard Vacuum Bagging," written for WoodenBoat Magazine. A unique and appealing feature, aside from its modular construction, is that her cross arms fold up and in, reducing her beam to just under 8 ft (2.4 m), making this trimaran fully trailerable.
Constant Camber 3M is a 10 ft (3.0 m) cat-rigged solo harbor racer/trainer trimaran sailboat designed in the 1980s by John Marples.
