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  • The design principles of Kayak .
    Typically, kayak design is largely a matter of trade-offs: directional stability ("tracking") vs maneuverability; stability vs speed; and primary vs secondary stability. This is true for single hull (a.k.a. mono-hull) kayaks, but does not necessarily encompass newer types of hulls, such as twin hulls. Length As a general rule, a longer kayak is faster. See Hull speed. Kayaks that are built to cover longer distances such as touring and sea kayaks are longer, generally 16 to 19 feet (4.9 to 5.8 m). With touring kayaks the keel is generally more defined (helping the kayaker track in a straight line.) Whitewater kayaks, which generally depend upon river current for their forward motion, are short, to maximize maneuverability. These kayaks rarely exceed 8 feet (2.4 m) in length, and play boats may be only 5–6 feet (1.5–1.8 m) long. Recreational kayak designers try to provide more stability at the price of reduced speed, and compromise between tracking and maneuverability, ranging from 9–14 feet (2.7–4.3 m). Primary and secondary stability Primary (sometimes called initial) stability describes how much a boat tips, or rocks back and forth, when displaced from level by paddler weight shifts. Secondary (final) stability describes how stable a kayak feels when put on edge or when waves are passing under the hull perpendicular to the length of the boat. Primary stability is often a big concern to a beginner, while secondary stability matters both to beginners and experienced travelers. By example, a wide, flat-bottomed kayak will have high primary stability and feel very stable on flat water. However, when a steep wave breaks on such a boat, it can be easily overturned because the flat bottom is no longer level. By contrast, a kayak with a narrower, more rounded hull can be edged or leaned into waves and (in the hands of a skilled kayaker) provides a safer, more comfortable response on stormy seas. Beam profile The most important attribute in determining the stability of a single hulled kayak is the overall width of its cross section. The shape of the cross section can affect both maneuverability and stability. Hull shapes are categorized by roundness/flatness, whether it has a "V" shape at various points, and by the presence and severity of a chine, where the side and bottom of a hull meet at an angle, creating an edge below the gunwales. This cross–section may vary along the length of the boat. Kayaks with only moderate primary, but excellent secondary stability are, in general, considered more seaworthy, especially in challenging conditions. A V-shaped hull tends to ease traveling straight (track), but makes turning harder. V-shaped hulls also have the greatest secondary stability. Conversely, flat-bottomed hulls are easy to turn, but harder to direct in a constant direction. The chine typically increases secondary stability by effectively widening the beam of the boat when it heels (tips). Sea kayaks, designed for open water and rough conditions, are generally narrower 22–25 inches (56–64 cm) and have more secondary stability than recreational kayaks, which are wider 26–30 inches (66–76 cm), have a flatter hull shape, and more primary stability. Hull surface profile Traditional kayak hulls are categorized according to the shape from bow to stern Common shapes include: Symmetrical: the widest part of the boat is halfway between bow and stern. Fish form: the widest part is forward (in front) of the midpoint. Swede form: the widest part is aft (behind) midpoint. Rocker Length alone does not fully predict a kayak's maneuverability: a second design element is rocker, i.e. its lengthwise curvature. A heavily rockered boat curves more, shortening its effective waterline. For example, an 18-foot (5.5 m) kayak with no rocker is in the water from end to end. In contrast, the bow and stern of a rockered boat are out of the water, shortening its lengthwise waterline to only 16 ft (4.9 m). Rocker is generally most evident at the ends, and in moderation improves handling. Similarly, although a rockered whitewater boat may only be a few feet shorter than a typical recreational kayak, its waterline is far shorter and its maneuverability far greater. When surfing, a heavily rockered boat is less likely to lock into the wave as the bow and stern are still above water. A boat with less rocker cuts into the wave and makes it harder to turn while surfing. Paddling ease and ergonomics Some recreational kayak makers try to maximize hull volume (weight capacity) for a given length as shorter kayaks are easier to transport and store. Many paddlers who use a sit-in kayak feel more secure in a kayak with a weight capacity substantially more than their own weight. Maximum volume in a sit-in kayak is helped by a wide hull with high sides. But paddling ease is helped by lower sides where the paddler sits and a narrower width. A narrower kayak makes a somewhat shorter paddle appropriate and a shorter paddle puts less strain on the shoulder joints. Some paddlers are comfortable with a sit-in kayak so narrow that their legs extend fairly straight out. Others want sufficient width to permit crossing their legs inside the kayak. Traditional-style and most modern types of kayaks (e.g. sit-on-top) require that paddler be seated with their legs stretched in front of them, in a right angle, in a position called the "L" kayaking position. Most modern kayaks feature a system comprising footrests and a backrest, designed to provide the paddler with means to support their paddling effort by allowing them to push the footrests with their feet, and the backrest with their lower back (lumbar spine). Such arrangements were not included in kayaks made by native peoples of the arctic regions, who were fit enough to paddle their kayaks without needing such devices. These devices are not required in new twin hull kayaks of the "W" type that offer a different sitting position called the "Riding" position, in which the paddler's legs are not stretched out in front of them. https://en.wikipedia.org/wiki/Kayak

    2015 10/21

  • Kayak`s history .
    Kayaks (Inuktitut: qajaq (ᖃᔭᖅ [qɑˈjɑq]), Yup'ik: qayaq (from qai- "surface; top"),[4] Aleut: Iqyax) were originally developed by the Inuit, Yup'ik, and Aleut. They used the boats to hunt on inland lakes, rivers and coastal waters of the Arctic Ocean, North Atlantic, Bering Sea and North Pacific oceans. These first kayaks were constructed from stitched seal or other animal skins stretched over a wood or whalebone-skeleton frame. (Western Alaskan Natives used wood whereas the eastern Inuit used whalebone due to the treeless landscape). Kayaks are believed to be at least 4,000 years old. The oldest existing kayaks are exhibited in the North America department of the State Museum of Ethnology in Munich. Native people made many types of boat for different purposes. The baidarka, developed by indigenous cultures in Alaska, was also made in double or triple cockpit designs, for hunting and transporting passengers or goods. An umiak is a large open sea canoe, ranging from 17 to 30 feet (5.2 to 9.1 m), made with seal skins and wood. It is considered a kayak although it was originally paddled with single-bladed paddles, and typically had more than one paddler. Native builders designed and built their boats based on their own experience and that of the generations before them, passed on through oral tradition. The word "kayak" means "man's boat" or "hunter's boat", and native kayaks were a personal craft, each built by the man who used it-with assistance from his wife, who sewed the skins-and closely fitting his size for maximum maneuverability. A special skin jacket, Tuilik, was then laced to the kayak, creating a waterproof seal. This enabled the eskimo roll to become the preferred method of regaining posture after capsizing, especially as few Eskimos could swim; their waters are too cold for a swimmer to survive for long. Instead of a tuilik, most traditional kayakers today use a spray deck made of waterproof synthetic material stretchy enough to fit tightly around the cockpit rim and body of the kayaker, and which can be released rapidly from the cockpit to permit easy exit. Eskimo kayak builders had specific measurements for their boats. The length was typically three times the span of his outstretched arms. The width at the cockpit was the width of the builder's hips plus two fists (and sometimes less). The typical depth was his fist plus the outstretched thumb (hitch hiker). Thus typical dimensions were about 17 feet (5.2 m) long by 20–22 inches (51–56 cm) wide by 7 inches (18 cm) deep. This measurement system confounded early European explorers who tried to duplicate the kayak, because each kayak was a little different. Traditional kayaks encompass three types: Baidarkas, from the Bering sea & Aleutian islands, the oldest design, whose rounded shape and numerous chines give them an almost Blimp-like appearance; West Greenland kayaks, with fewer chines and a more angular shape, with gunwales rising to a point at the bow and stern; and East Greenland kayaks that appear similar to the West Greenland style, but often fit more snugly to the paddler and possess a steeper angle between gunwale and stem, which lends maneuverability. Most of the Aleut people in the Aleutian Islands eastward to Greenland Inuit relied on the kayak for hunting a variety of prey-primarily seals, though whales and caribou were important in some areas. Skin-on-frame kayaks are still being used for hunting by Inuit people in Greenland, because the smooth and flexible skin glides silently through the waves. In other parts of the world home builders are continuing the tradition of skin on frame kayaks, usually with modern skins of canvas or synthetic fabric, such as sc. ballistic nylon. Contemporary traditional-style kayaks trace their origins primarily to the native boats of Alaska, northern Canada, and Southwest Greenland. Wooden kayaks and fabric kayaks on wooden frames dominated the market up until the 1950s, when fiberglass boats were first introduced in the US, and inflatable rubberized fabric boats were first introduced in Europe. Rotomolded plastic kayaks first appeared in 1973, and most kayaks today are made from roto-molded polyethylene resins. The development of plastic and rubberized inflatable kayaks arguably initiated the development of freestyle kayaking as we see it today, since these boats could be made smaller, stronger and more resilient than fiberglass boats. https://en.wikipedia.org/wiki/Kayak

    2015 10/21

  • What is a kayak ?
    A kayak is a small, narrow boat primarily designed to be manually propelled by means of a double-bladed paddle. The word kayak originates from the Greenlandic Inuktitut language, where it is the word 'qajaq'. In the UK the term canoe is often used when referring to a kayak. The traditional kayak has a covered deck and one or more cockpits, each seating one paddler. The cockpit is sometimes covered by a spray deck that prevents the entry of water from waves or spray and makes it possible for suitably skilled kayakers to roll the kayak: that is, to capsize and right it without it filling with water or ejecting the paddler. Man sitting with legs covered in boat that tapers to a point at each end holding long, pointed, wooden pole Inuit seal hunter in a kayak, armed with a harpoon Some modern boats vary considerably from a traditional design but still claim the title "kayak", for instance in eliminating the cockpit by seating the paddler on top of the boat ("sit-on-top" kayaks); having inflated air chambers surrounding the boat; replacing the single hull by twin hulls ("W" kayak), and replacing paddles with other human-powered propulsion methods, such as foot-powered rotational propellers and "flippers". Kayaks are also being sailed, as well as propelled by means of small electric motors, and even by outboard gas engines, when possible. Photo of person sitting in boat holding paddle with otters swimming in foreground. Boat is approximately 12 feet long and only slightly wider than paddler. Kayaks are often used to get closer to marine animals, such as sea otters The kayak was first used by the indigenous Aleut, Inuit, Yupik and possibly Ainu hunters in subarctic regions of the world. https://en.wikipedia.org/wiki/Kayak

    2015 10/21

  • These are mainly new products released in 2015
    These are mainly new products released in 2015.

    2015 08/19

  • This new fishing kayak is released in 2015
    The Onefeng kayak is a fantastic way to get out on the water. It is stable, fast and comfortable with many features to make it a pleasure to use.Although this kayak has been designed with fishing in mind, it is also a fantastic all round recreational kayak. It is ideal for use on rivers,lakes,estuaries and the sea. It is stable and manoeuvrable, so why not try taking it out in the waves! It glides well, allowing for long distance exploring.This model has two flush and four swivel mounted fishing rod holders, two water tight storage hatches and a large bungee secured storage area.It also comes with a deluxe padded seat for comfort and back support. All our kayaks are built to last and have a lifetime warranty.

    2015 08/19

  • Express News!New fishing kayak will soon see the light of day
    The Onefeng kayak is a fantastic way to get out on the water. It is stable, fast and comfortable with many features to make it a pleasure to use.Although this kayak has been designed with fishing in mind, it is also a fantastic all round recreational kayak. It is ideal for use on rivers, lakes,estuaries and the sea. It is stable and manoeuvrable, so why not try taking it out in the waves! It glides well, allowing for long distance exploring.This model has two flush rod holders, one water tight storage hatches and two big bungee bungee secured storage area. It also comes with a deluxe padded seat for comfort and back support. All our kayaks are built to last and have a lifetime warranty.

    2015 08/19

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