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Seidelmann 37
The Seidelmann 37 is an American sailboat that was designed by Bob Seidelmann as a racer-cruiser and first built in 1980.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 296-297. Houghton Mifflin Company, 1994. Production The design was built by Seidelmann Yachts in Berlin, New Jersey, United States, but it is now out of production. Design The Seidelmann 37 is a recreational keelboat, built predominantly of fiberglass, with teak wood trim. It has a masthead sloop rig, with aluminum spars, a raked stem, a raised reverse transom, an internally mounted spade-type rudder controlled by a wheel and a fixed fin keel. It displaces and carries of ballast. The design was produced with several different keel and rig combinations. The boat has a draft of with the standard keel and with the optional shoal draft keel. The boat is fitted with a Japanese Yanmar 2GMF Yanmar 2GM20 diesel engine of for docking and maneuvering. The fuel tank h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bob Seidelmann
Seidelmann Yachts was an American boat builder based in Berlin, New Jersey. The company specialized in the design and manufacture of fiberglass sailboats. The company was founded by Bob Seidelmann in 1977. History Bob Seidelmann was a sailmaker and one design sailor, winning championships in Lightnings, Comets and Dusters, as well as several other one-design racing classes. He founded a sailmaking business, Seidelmann Sails, with his father, Joe Seidelmann, in the early 1960s. He was co-designer of the 1972 Hunter 25 with John Cherubini, which became Hunter Marine's first production boat. He began designing his own boats and started Seidelmann Yachts to produce them.Henkel, Steve: ''The Sailor's Book of Small Cruising Sailboats'', page 311. International Marine/McGraw-Hill, 2010. The first designs produced were the Seidelmann 25, Seidelmann 30 and the Seidelmann 30-T, all in 1977. Reviewer Steve Henkel reports in ''The Sailor's Book of Small Cruising Sailboats'' that s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masthead Sloop
A masthead rig on a sailing vessel consists of a forestay and backstay both attached at the top of the mast. The Bermuda rig can be split into two groups: the masthead rig and the fractional rig. The masthead rig has larger and more headsails, and a smaller mainsail, compared to the fractional rig. The major advantage a masthead sloop has over a fractional one, is that the jib is larger. Since the jib has no mast in front of it to cause turbulent airflow over it, it is considered much more efficient than the main, especially for sailing up wind. Also, since the fore stay is attached to the top of the mast, it pulls directly against the back stay. Tightening the back stay, then, increases the tension on the fore stay. This is useful because the jib needs considerable fore stay tension to set well. This need increases in direct proportion to the wind speed and jib size. Increasing the tension on the back stay does not tend to bend the mast, as it would on a fractional sloop. It put ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genoa (sail)
A genoa sail is a type of large jib or staysail that extends past the mast and so overlaps the main sail when viewed from the side, sometimes eliminating it. It was originally called an "overlapping jib" and later a genoa jib. It is used on single-masted sloops and twin-masted boats such as yawls and ketches. Its larger surface area increases the speed of the craft in light to moderate winds; in high wind, a smaller jib is usually substituted, and downwind a spinnaker may be used. Definition The term ''jib'' is the generic term for any of an assortment of ''headsails''. The term ''genoa'' (or genny) refers to a type of jib that is larger than the 100% foretriangle, which is the triangular area formed by the point at which the stay intersects the mast, and deck or bowsprit, and the line where the mast intersects deck at the rail. Colloquially the term is sometimes used interchangeably with ''jib''. A working jib is no larger than the 100% foretriangle. A genoa is larger, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reefing
Reefing reduces the area of a sail, usually by folding or rolling one edge of the canvas in on itself and attaching the unused portion to a spar or a stay, as the primary measure to preserve a sailing vessel's stability in strong winds. Restoring full sail area is termed ''shaking out'' a reef. Whereas fore-and-aft rigged vessels store the unused portion of the sail on a boom, below the sail, square-rigged vessels stow the unused portion on a spar, above the sail. Reefing may occur by rolling the sail around its luff or foot, either on a rotating stay or within a spar. Fore-and-aft rigs Sails may have built-in alternative attachment points that allow their area to be reduced. In a mainsail, pairs of grommets, called reefing tacks, reefing clews, or reefing cringles may be installed in the sail; a cruising boat will typically have two to three pairs. Pulling these points down to the boom forms a new tack and clew, reducing the sail's area. Using the pair of grommets closest t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topping Lift
The topping lift (more rarely known as an uphaul) is a line which applies upward force on a boom on a sailboat. Part of the running rigging, topping lifts are primarily used to hold a boom up when the sail is lowered. This line would run from near the free end of the boom(s) forward to the top of the mast. The line may be run over a block at the top of the mast and down to the deck to allow it to be adjusted. For small booms, the topping lift may be run from end of the boom to the backstay or next mast aft. When the sail is raised again, the topping lift is loosened or removed. On sailboats used for racing, boom lift function is frequently incorporated into the boom vang system, to reduce the number of lines aloft. Allowing the vang to take this function also simplifies operation of the boat. On larger or older sailing vessels, lifts known as "quarter-lifts" run to the middle of the boom. When the sail is raised, the quarter-lift on the leeward side must be slack, otherwise i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halyard
In sailing, a halyard or halliard is a line (rope) that is used to hoist a ladder, sail, flag or yard. The term ''halyard'' comes from the phrase "to haul yards". Halyards, like most other parts of the running rigging, were classically made of natural fibre like manila or hemp. Sail types * A square rig sail with a halyard is mounted on a lifting yard that is free to slide on a short section of the mast. The halyard is used to raise (hail or hal) the yard when setting the sail. * A gaff rigged sail has two; a throat halyard to lift the end of the gaff nearer the mast, and a peak halyard to lift the outer end. * A more modern triangular (Bermuda or "Marconi") sail has only one halyard which is attached at its uppermost point (the ''head''). Fastenings Halyards can be attached a number of ways to the head of a triangular sail. The most common methods are as follows: # A shackle through a headboard on the sail. # A bowline through a hole in the head. # A half hitch with a figure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorade Vent
A dorade box (also called a dorade vent, collector box, or simply a "ventilator") is a type of vent that permits the passage of air in and out of the cabin or engine room of a boat while keeping rain, spray, and sea wash out. Design The basic form is a low, rectangular box fixed to the deck or cabin top, fitted with interleaving vertical baffles. The baffles alternate to be free at the floor of the box, or free at the ceiling, forming a series of chambers. A horn-shaped ventilation cowl is usually fitted facing forward to a large hole at the top of the chamber at one end of the box with another large hole opening down into the boat from the chamber at the other end. Limber holes perforate the wall of the box at the floor of each chamber. Dorade boxes operate on the principle that air can pass relatively freely through the chambers, yet rain or sea wash will be trapped in successive chambers and drain out the small holes in the sides of the box. The principle can be applied ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head (watercraft)
The head (pl. heads) is a 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 ship. 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 into the to ... [...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 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 was called a caboose or ''camboose'', originating from the nl, kombuis, which is still in use today. In English it is a defunct term used only for a cooking area that is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yanmar 2GM20
The Yanmar 2GM20 is a series of Inboard motor, inboard marine diesel engine manufactured by the Japanese company Yanmar, Yanmar Co. Ltd. It is used in a wide range of sailboats and motorboats. The 2GM20 is out of production and has been superseded by the newer Yanmar 3YM20 series. Specifications It is a four-stroke, vertical, water cooling, water-cooled diesel engine. It is built around two Cylinder (engine), cylinders (hence the "2" in 2GM20) of 75 mm in diameter and 72 mm in stroke (engine), stroke, adding up to 0.635 litres in displacement: each cylinder is roughly the size and volume of a 300 ml Beverage can, soft-drink can. The compression system uses a proprietary swirl-type pre-combustion chamber.Yanmar technical reference sheet The continuous rating output at the crankshaft is 11.8 kW, at 3400 revolutions per minute (rpm). The maximum output at the crankshaft is 13.4 kW, at 3600 rpm. The engine delivers roughly 16 horsepower, for a weight of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel
The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in British and American shipbuilding traditions the construction is dated from this event. Etymology The word "keel" comes from Old English , Old Norse , = "ship" or "keel". It has the distinction of being regarded by some scholars as the first word in the English language recorded in writing, having been recorded by Gildas in his 6th century Latin work ''De Excidio et Conquestu Britanniae'', under the spelling ''cyulae'' (he was referring to the three ships that the Saxons first arrived in). is the Latin word for "keel" and is the origin of the term careen (to clean a keel and the hull in general, often by rolling the ship on its side). An example of this use is Careening Cove, a suburb of Sydney, Australia, where careening was carried out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship's Wheel
A ship's wheel or boat's wheel is a device used aboard a water vessel to steer that vessel and control its course. Together with the rest of the steering mechanism, it forms part of the helm. It is connected to a mechanical, electric servo, or hydraulic system which alters the horizontal angle of the vessel's rudder relative to its hull. In some modern ships the wheel is replaced with a simple toggle that remotely controls an electro-mechanical or electro-hydraulic drive for the rudder, with a rudder position indicator presenting feedback to the helmsman. History Until the invention of the ship's wheel, the helmsman relied on a tiller—a horizontal bar fitted directly to the top of the rudder post—or a whipstaff—a vertical stick acting on the arm of the ship's tiller. Near the start of the 18th century, a large number of vessels appeared using the ship's wheel design, but historians are unclear when the approach was first used. Design A traditional ship's wheel is compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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