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Twitchell 12
The Twitchell 12 is an American sailboat that was designed by Ron Holder as a day sailer for people with limited mobility and first built in 1991. Production The design was built by W. D. Schock Corp in the United States, from 1991 until 1993, with 27 boats completed, but it is now out of production. Design The Twitchell 12 is a recreational sailing dinghy, built predominantly of fiberglass, with wood trim. It has a fractional sloop rig with a jib boom, a raked stem, a reverse transom, a transom-hung rudder controlled by a cockpit joystick and a retractable daggerboard. It displaces . The boat has a draft of with the daggerboard extended and with it retracted, allowing operation in shallow water, beaching or ground transportation on a trailer. The design has a hull speed of . See also *List of sailing boat types The following is a partial list of sailboat types and sailing classes, including keelboats, dinghies and multihull ( catamarans and trimarans). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ron Holder
Ron is a shortening of the name Ronald. Ron or RON may also refer to: Arts and media *Big Ron (EastEnders), Big Ron (''EastEnders''), a TV character *Ron (King of Fighters), Ron (''King of Fighters''), a video game character *Ron Douglas, the protagonist in ''Lucky Stiff (film), Lucky Stiff'' played by Joe Alasky *Ron Weasley, a character in ''Harry Potter.'' Language * Ron language, spoken in Plat State, Nigeria * Romanian language (ISO 639-3 code ron) People Mononym *Ron (singer), Rosalino Cellamare (born 1953), Italian singer Given name *Ron (given name) Surname *Dana Ron (born 1964), Israeli computer scientist and professor *Elaine Ron (1943-2010), American epidemiologist *Emri Ron (born 1936), Israeli politician *Ivo Ron (born 1967), Ecuadorian football player *Jason De Ron (born 1973), Australian musician *José Ron (born 1981), Mexican actor *Liat Ron, actress, dancer and dance instructor * *Lior Ron (born 1982), Israeli-American film and trailer composer and musicia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1990s Sailboat Type Designs
Year 199 ( CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 ''Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinghies
A dinghy is a type of small boat, often carried or towed by a larger vessel for use as a tender. Utility dinghies are usually rowboats or have an outboard motor. Some are rigged for sailing but they differ from sailing dinghies, which are designed first and foremost for sailing. A dinghy's main use is for transfers from larger boats, especially when the larger boat cannot dock at a suitably-sized port or marina. The term "dinghy towing" sometimes is used to refer to the practice of towing a car or other smaller vehicle behind a motorhome, by analogy to towing a dinghy behind a yacht. Etymology The term is a loanword from the Bengali ', Urdu ', and Hindi '. Types Dinghies usually range in length from about . Larger auxiliary vessels are generally called tenders, pinnaces or lifeboats. Folding and take-down multi-piece (nesting) dinghies are used where space is limited. Some newer dinghies have much greater buoyancy, giving them more carrying capacity than older b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin 16
The Martin 16 is a Canadian trailerable sailboat, that was designed by Don Martin of Vancouver, British Columbia, specifically as a boat for disabled sailors. It was first built in 1995. Production The boat was first built in 1995 by Martin Yachts, who completed 58 examples. Production then passed to Abbott Boats in Sarnia, Ontario, Canada, who built a further 55 boats. The original molds were destroyed in a fire in 2006, but a new set were built in 2009 and production was restarted by KAPE Boatworks of Mississauga, Ontario. The design remains in production. Design The Martin 16 is a small recreational keelboat, built predominantly of fiberglass. It has a fractional sloop rig, a transom-hung rudder and a lifting weighted bulb keel. It displaces and carries of lead ballast. Both the mainsail and the jib are mounted with booms. It can fly a spinnaker of . Martin 16 sailors sit on a seat facing forward and all controls and lines are led to the cockpit to allow sailing wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sailing Boat Types
The following is a partial list of sailboat types and sailing classes, including keelboats, dinghies and multihull ( catamarans and trimarans). Olympic classes World Sailing Classes Historically known as the IYRU (International Yacht Racing Union), the organization evolved into the ISAF (International Sailing Federation) in 1996, and as of December 2015 is now World Sailing. Dinghies Keelboats & yachts Multihulls Boards Radio-controlled Former World Sailing-classes Dinghies Keelboats & yachts Multihulls Boards Other classes and sailboat types Dinghies Keelboats & yachts Multihulls See also * Classic dinghy classes * List of boat types * List of historical ship types * List of keelboat classes designed before 1970 * Olympic sailing classes * Small-craft sailing * Clansman 30 Notes References {{DEFAULTSORT:Sailing boat types Types * Boat types A boat is a watercraft of a large range of types and sizes, but general ... [...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. Thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boat Trailer
A boat trailer is designed to launch, retrieve, carry and sometimes store boats. Commercial boat trailers Commercial hydraulic boat trailers are used by marinas, boat yards, boat haulers, boat dealers and boat builders. Generally this type of trailer is not used for storage of the boat. Self-propelled Self-propelled boat movers are not strictly trailers, but hydraulically operated boat movers, with their own tractor unit. They share all of the features of hydraulic boat trailers. Non-commercial boat trailers This type of trailer is usually used by the boat owner/operator. The trailer is also used for storage. * Roll-on, also known as a "Roller style trailer", uses rubber and/or polyurethane rollers for ease of launching and loading a boat. * Glide-path, also known as a "Float-on style trailer", allows the boat to float onto the trailer; after the trailer has been partially submerged (usually of the trailer). Since its inception, it has become quite popular compared to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaching (nautical)
Beaching (or Landing) is the process in which a ship or boat is laid ashore, or grounded deliberately in shallow water. This is more usual with small flat-bottomed boats. Larger ships may be beached deliberately; for instance, in an emergency, a damaged ship might be beached to prevent it from sinking in deep water. Some vessels are designed to be loaded and unloaded by beaching; vessels of this type used by the military to disembark troops under fire are called landing craft. During the age of sail, vessels were sometimes beached to allow them to be rolled over for the hull to be maintained, a process called ''careening''. Ships scheduled for break-up are sometimes intentionally beached to make the procedure easier. See also * Landing craft * Shipwrecking * Cetacean stranding Cetacean stranding, commonly known as beaching, is a phenomenon in which whales and dolphins strand themselves on land, usually on a beach. Beached whales often die due to dehydration, collapsing under t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joystick
A joystick, sometimes called a flight stick, is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. A joystick, also known as the control column, is the principal control device in the cockpit of many civilian and military aircraft, either as a centre stick or side-stick. It often has supplementary switches to control various aspects of the aircraft's flight. Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick. Joysticks are also used for controlling machines such as cranes, trucks, underwater unmanned vehicles, wheelchairs, surveillance cameras, and zero turning radius lawn mowers. Miniature finger-operated joysticks have been adopted as input devices for smaller electronic equipment such as mobile phones. Aviation Joystic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
