|
Swan 55
The Swan 55 is a Finnish sailboat that was designed by Sparkman & Stephens as a cruiser- racer and first built in 1970. The boat was variously sold as the Swan 55, Swan 53 and the Palmer Johnson 53. Production The design was built by Oy Nautor AB in Finland, from 1970 to 1974 with 16 boats built, but it is now out of production. Of those built, seven were the yawl rig version. Design The Swan 55 is a recreational keelboat, built predominantly of glassfibre, with wood trim. It has a masthead sloop or yawl rig, a raked stem, a skeg-mounted rudder controlled by a wheel and a fixed swept fin keel. It displaces and carries of lead ballast. The boat has a draft of with the standard keel. The boat is fitted with a Swedish Volvo Penta MD21A diesel engine of for docking and manoeuvring. The fuel tank holds and the fresh water tank has a capacity of . The design has sleeping accommodation for nine people, with a double "V"-berth in the bow cabin, L-shaped and U-shaped settees in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sparkman & Stephens
Sparkman & Stephens is a naval architecture and yacht brokerage firm with offices in Newport, Rhode Island and Fort Lauderdale, Florida, USA. The firm performs design and engineering of new and existing vessels for pleasure, commercial, and military use. Sparkman & Stephens also acts as a ship and yacht brokerage. The firm offers similar design and engineering services for the performance optimization of existing yachts. Their designs have won most of the major international yacht races such as the America's Cup, for several decades, including a string of victories in the Fastnet and Sydney to Hobart as well as winning twice the Whitbread Round the World Race by '' Sayula II'' in 1974 and '' Flyer'' in 1978. S&S has a number of custom yacht design projects as well as being designers for boat builders such as Nautor's Swan, Grand Banks Yachts, and Morris Yachts. With more than 100 units built, the S&S design #1710 also known as Swan 36 became the most utilized design in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skeg
A skeg (or skegg or skag) is a sternward extension of the keel of boats and ships which have a rudder mounted on the centre line. The term also applies to the lowest point on an outboard motor or the outdrive of an inboard/outboard."A small fin fitted aft of the keel to protect the rudder and propeller, and improve steering and tracking." "Skeg, or Skegg. A projecting stump formerly left on the keel, abaft the stern-post. The after-end of the keel. The composition piece supporting the heel of an equipoise rudder." at Internet Archive In more recent years, the name has been used for a fin on a surfboard which improves directional stability and to a movable fin on a kayak which adjusts the boat's Center of lateral resistance, centre of lateral resistance (it moves the center of resistance relative to the center of effort). The term is also often used for the fin on water skis in the U.S. It has been used for the vertical fin on seaplane hulls and floats. The wear-bar on the bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinnaker
A spinnaker is a sail designed specifically for sailing off the wind on courses between a Point of sail#Reaching, reach (wind at 90° to the course) to Point of sail#Running downwind, downwind (course in the same direction as the wind). Spinnakers are constructed of lightweight fabric, usually nylon, and are often brightly colored. They may be designed to perform best as either a reaching or a running spinnaker, by the shaping of the panels and seams. They are attached at only three points and said to be ''flown''. Etymology Some dictionaries suggest that the origin of the word could be traced to the first boat to commonly fly a spinnaker, a yacht called ''Sphinx'', mispronounced as ''Spinx''. ''Spinnaker'' entry in The Concise Oxford Dictionary of English Etymology (1996). Oxford University PressAccording to encyclopedia.com Both retrieved on 20 July 2008. ''Sphinx'' first set her spinnaker in the Solent in 1865, and the first recorded use of the word was in 1866 in the Augu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Transom
In some boats and ships, a transom is the aft transverse surface of the hull that forms the stern of a vessel. Historically, they are a development from the canoe stern (or "double-ender") wherein which both bow and stern are pointed. Transoms add both strength and width to the stern. They may be flat or curved and they may be vertical, raked forward (known as retroussé), or raked aft. In small boats and yachts, this flat termination of the stern is typically above the waterline, but large commercial vessels often exhibit vertical transoms that dip slightly beneath the water. On cruising boats, a counter stern may be truncated to form a "truncated counter stern", in which there is a part of the stern that approximates a transom. Although that standard stern transom is typically vertical, they may be raked such that there is an overhang above the water, as at the bow. A reverse transom is angled from the waterline forwards. On smaller boats such as dinghies, transoms may be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Performance Handicap Racing Fleet
Performance Handicap Racing Fleet (PHRF) is a handicapping system used for yacht racing in North America. It allows dissimilar classes of sailboats to be raced against each other. The aim is to cancel out the inherent advantages and disadvantages of each class of boats, so that results reflect crew skill rather than equipment superiority. PHRF is used mainly for larger sailboats (i.e., 7 meters and above). For dinghy racing, the Portsmouth yardstick handicapping system is more likely to be used. The handicap number assigned to a class of yachts is based on the yacht's speed relative to a theoretical yacht with a rating of 0. A yacht's handicap, or rating, is the number of seconds per mile traveled that the yacht in question should be behind the theoretical yacht. Most boats have a positive PHRF rating, but some very fast boats have a negative PHRF rating. If Boat A has a PHRF rating of 15 and Boat B has a rating of 30 and they compete on a 1 mile course, Boat A should finish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull Speed
Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well. When hull speed is exceeded, a vessel in displacement mode will appear to be climbing up the back of its bow wave. From a technical perspective, at hull speed the bow and stern waves interfere constructively, creating relatively large waves, and thus a relatively large value of wave drag. Ship drag for a displacement hull increases smoothly with speed as hull speed is approached and exceeded, often with no noticeable inflection at hull speed. The concept of hull speed is not used in modern naval architecture, where considerations of speed/length ratio or Froude number are considered more helpful. Background As a ship moves in the water, it creates standing waves that oppose its movement. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head (watercraft)
In sailing vessels, the head is the ship's toilet. The name derives from sailing ships in which the toilet area for the regular sailors was placed at the head or bow of the vessel. Design In sailing ships, the toilet was placed in the bow somewhat above the water line with vents or slots cut near the floor level allowing normal wave action to wash out the facility. Only the captain had a private toilet near his quarters, at the stern of the ship in the quarter gallery. The plans of 18th-century naval ships do not reveal the construction of toilet facilities when the ships were first built. The Journal of Aaron Thomas aboard HMS ''Lapwing'' in the Caribbean Sea in the 1790s records that a canvas tube was attached, presumably by the ship's sailmaker, to a superstructure beside the bowsprit near the figurehead, ending just above the normal waterline. In many modern boats, the heads look similar to seated flush toilets but use a system of valves and pumps that brings sea water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Box
An icebox (also called a cold closet) is a compact non-mechanical refrigerator which was a common early-twentieth-century kitchen appliance before the development of safely powered refrigeration devices. Before the development of electric refrigerators, iceboxes were referred to by the public as "refrigerators". Only after the invention of the modern electric refrigerator did early non-electric refrigerators become known as iceboxes. The terms ''ice box'' and ''refrigerator'' were used interchangeably in advertising as long ago as 1848. Origin The first recorded use of refrigeration technology dates back to 1775 BC in the Sumerian city of Terqa. It was there that the region's King, Zimri-lim, began the construction of an elaborate ice house fitted with a sophisticated drainage system and shallow pools to freeze water in the night. Using ice for cooling and preservation was not new at that time; the ice house was an introductory model for the modern icebox. The traditional kit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Companionway
In the architecture of a ship, a companion or companionway is a raised and windowed hatchway in the ship's deck, with a ladder leading below and the hooded entrance-hatch to the main cabins. A companionway may be secured by doors or, commonly in sailboats, ''hatch boards'' which fit in grooves in the companionway frame. This allows the lowest board to be left in place during inclement weather to minimize water infiltration. The term may be more broadly used to describe any ladder between decks. File:Hatchboards.JPG, Set of hatch boards in companionway hatch. File:Hatchboards2.JPG, Set of hatch boards with top board removed. See also * Glossary of nautical terms (other) Glossary of nautical terms may refer to: * Glossary of nautical terms (A–L) This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water (mostly though n ... References {{sailing ship elements Rooms Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galley (kitchen)
The galley is the compartment of a ship, train, or aircraft where food is cooked and prepared. It can also refer to a land-based kitchen on a naval base, or, from a kitchen design point of view, to a straight design of the kitchen layout. Ship's cooking area A fork galley is the cooking area aboard a vessel, usually laid out in an efficient typical style with longitudinal units and overhead cabinets. This makes the best use of the usually limited space aboard ships. It also caters for the rolling and heaving nature of ships, making them more resistant to the effects of the movement of the ship. For this reason galley stoves are often gimballed, so that the liquid in pans does not spill out. They are also commonly equipped with bars, preventing the cook from falling against the hot stove. A small cooking area on deck is called a caboose or ''camboose'', originating from the , which is still in use today. In English it is a term used only for a cooking area that is abovedecks. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilot Berth
A sleeping berth is a bed or sleeping accommodation on vehicles. Space accommodations have contributed to certain common design elements of berths. Beds in boats or ships While beds on large ships are little different from those on shore, the lack of space on smaller yachts means that bunks must be fit in wherever possible. Some of these berths have specific names: V-berth Frequently, yachts have a bed in the extreme forward end of the hull (usually in a separate cabin called the forepeak). Because of the shape of the hull, this bed is basically triangular, though most also have a triangular notch cut out of the middle of the aft end, splitting it partially into two separate beds and making it more of a V shape, hence the name. This notch can usually be filled in with a detachable board and cushion, creating something more like a double bed (though with drastically reduced space for the feet; wide is typical). The term "V-berth" is not widely used in the UK; instead, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
