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Yacht Tender
A yacht tender is a vessel used for servicing and providing support and entertainment to a private or charter yacht. They include utilitarian craft, powered by oar or outboard motor, and high-speed luxury craft, supporting superyachts, powered by inboard engines, some using water-jets. Some superyachts have a support vessel that follows them with bulky items that are not conveniently stowed aboard the main yacht, such as a helicopter, automobile or larger watercraft. History In the early 20th century multiple builders were developing wooden powered yacht tenders, equipped with naphtha steam engines or gasoline motors. By 1929 Chris Craft was building mahogany tenders with powerful inboard engines. Types Tenders may be towed behind a yacht, if they are light and towed at a low speed, or lifted on board, if they are heavy enough to cause damage in a collision or when the vessel cruises at too high a speed for towing. The type of tender varies, according to the size of the ya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hacker Tender And Christina O
A hacker is a person skilled in information technology who achieves goals and solves problems by non-standard means. The term has become associated in popular culture with a security hackersomeone with knowledge of bugs or exploits to break into computer systems and access data which would otherwise be inaccessible to them. In a positive connotation, though, hacking can also be utilized by legitimate figures in legal situations. For example, law enforcement agencies sometimes use hacking techniques to collect evidence on criminals and other malicious actors. This could include using anonymity tools (such as a VPN or the dark web) to mask their identities online and pose as criminals. Hacking can also have a broader sense of any roundabout solution to a problem, or programming and hardware development in general, and hacker culture has spread the term's broader usage to the general public even outside the profession or hobby of electronics (see life hack). Etymology The term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrol
Gasoline (North American English) or petrol ( Commonwealth English) is a petrochemical product characterized as a transparent, yellowish, and flammable liquid normally used as a fuel for spark-ignited internal combustion engines. When formulated as a fuel for engines, gasoline is chemically composed of organic compounds derived from the fractional distillation of petroleum and later chemically enhanced with gasoline additives. It is a high-volume profitable product produced in crude oil refineries. The ability of a particular gasoline blend to resist premature ignition (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating. Tetraethyl lead was once widely used to increase the octane rating but is not used in modern automotive gasoline due to the health hazard. Aviation, off-road motor vehicles, and racing car engines still use leaded gasolines. Other substances are frequently added to gasoline to improve chemical stabilit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wakeboarding
Wakeboarding is a water sport in which the rider, standing on a wakeboard (a board with foot bindings), is towed behind a motorboat across its wake and especially up off the crest in order to perform aerial maneuvers. A hallmark of wakeboarding is the attempted performance of midair tricks. Wakeboarding was developed from a combination of water skiing, snowboarding and surfing techniques. The rider is usually towed by a rope behind a boat, but can also be towed by cable systems and winches, and be pulled by other motorized vehicles like personal watercraft, cars, trucks, and all-terrain vehicles. The gear and wakeboard boat used are often personalized to each rider's liking. Though natural watercourses such as rivers, lakes and areas of open water are generally used in wakeboarding, it is possible to wakeboard in unconventional locations, such as flooded roads and car parks, using a car as the towing vehicle. Wakeboarding is done for pleasure and competition, ranging from frees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterskiing
Water skiing (also waterskiing or water-skiing) is a surface water sport in which an individual is pulled behind a boat or a cable ski installation over a body of water, skimming the surface on one or two skis. The sport requires sufficient area on a stretch of water, one or two skis, a tow boat with tow rope, two or three people (depending on local boating laws), and a personal flotation device. In addition, the skier must have adequate upper and lower body strength, muscular endurance, and good balance. There are water ski participants around the world, in Asia and Australia, Europe, Africa, and the Americas. In the United States alone, there are approximately 11 million water skiers and over 900 sanctioned water ski competitions every year. Australia boasts 1.3 million water skiers. There are many options for recreational or competitive water skiers. These include speed skiing, trick skiing, show skiing, slaloming, jumping, barefoot skiing and wakeski. Similar, related ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banana Boat (boat)
A banana boat (or water sled), is an unpowered, inflatable recreational boat meant to be towed. Different models usually accommodate three to ten riders sitting on a larger, main tube and resting their feet on two laterally flanking tubes which stabilize the boat. The main tube is often yellow and banana-shaped. Some models have two main tubes. See also *List of boat types This is a list of boat types. For sailing ships, see: List of sailing boat types A * Airboat * Amphibious automobile * Amphibious vehicle * Ark * Auxiliary ship Top of page B * Banana boat * Banana boat * Barge * Bow rider * Bracera ... References Boat types {{Ship-type-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Boat
A motorboat or powerboat is a boat that is exclusively powered by an engine; faster examples may be called "speedboats". Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit. An inboard-outboard contains a hybrid of an inboard and an outboard, where the internal combustion engine is installed inside the boat, and the gearbox and propeller are outside. There are two configurations of an inboard, V-drive and direct drive. A direct drive has the powerplant mounted near the middle of the boat with the propeller shaft straight out the back, where a V-drive has the powerplant mounted in the back of the boat facing backwards having the shaft go towards the front of the boat then making a ''V'' towards the rear. Overview A motorboat is a small craft with one or more engines for propulsion. Motorboats are commonly used for work, recreation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleasure Craft
Boating is the leisurely activity of travelling by boat, or the recreational use of a boat whether powerboats, sailboats, or man-powered vessels (such as rowing and paddle boats), focused on the travel itself, as well as sports activities, such as fishing or waterskiing. It is a popular activity, and there are millions of boaters worldwide. Types of boats Boats (boat types) can be categorized into 3 different types of board categories: unpowered, motor boats, and sailboats. Recreational boats (sometimes called pleasure craft, especially for less sporting activities) fall into several broad categories, and additional subcategories. Broad categories include dinghies (generally under 16 feet (5 m) powered by sail, small engines, or muscle power) usually made from hardwood or inflatable rubber. paddle sports boats (kayaks, rowing shells, canoes), runabouts (15–25 ft. (5–8 m) powerboats with either outboard, sterndrive, or inboard engines), daysailers (14–25 Ft. (4–8 m) s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hodgdon Yachts
Hodgdon Shipbuilding, LLC, known as Hodgdon Yachts, is an American shipbuilding company that builds Yacht, yachts and specialized military vessels, based in Boothbay, Maine, East Boothbay, Maine. It is a family-run business founded in 1816—the oldest continuously operating family boatbuilder in the United States, predating the Burger Boat Company by 47 years. Hodgdon Yachts is noted for building superyachts, both sail and power, using advanced composite materials and construction techniques. It's also noted for its ability to incorporate those advanced materials into traditional designs that employ modern electronic and mechanical marine systems. The company has several divisions—yachts, custom tenders, yacht interiors, yacht services and military composites with offices in Boothbay, Maine, Newport, Rhode Island and Monaco. History In 1816, founder, Caleb Hodgdon with brother Tyler, added boatbuilding as "Hodgdon Brothers" in East Boothbay on the Damariscotta River to Cale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impeller
An impeller, or impellor, is a driven rotor used to increase the pressure and flow of a fluid. It is the opposite of a turbine, which extracts energy from, and reduces the pressure of, a flowing fluid. Strictly speaking, propellers are a sub-class of impellers where the flow both enters and leaves axially, but in many contexts the term "impeller" is reserved for ''non''-propeller rotors where the flow enters axially and leaves radially, especially when creating suction in a pump or compressor. In pumps An impeller is a rotating component of a centrifugal pump that accelerates fluid outward from the center of rotation, thus transferring energy from the motor that drives the pump to the fluid being pumped. The acceleration generates output pressure when the outward movement of the fluid is confined by the pump casing. An impeller is usually a short cylinder with an open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a splined, keyed, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jetboat
A jetboat is a boat propelled by a jet of water ejected from the back of the craft. Unlike a powerboat or motorboat that uses an external propeller in the water below or behind the boat, a jetboat draws the water from under the boat through an intake and into a pump-jet inside the boat, before expelling it through a nozzle at the stern. The modern jetboat was developed by New Zealand engineer Bill Hamilton (engineer), Sir William Hamilton in the mid-1950s. His goal was a boat to run up the fast-flowing rivers of New Zealand that were too shallow for propellers. Previous attempts at waterjet propulsion had very short lifetimes, generally due to the inefficient design of the units and the fact that they offered few advantages over conventional propellers. Unlike these previous waterjet developments, such as Secondo Campini, Campini's and the Hanley Hydrojet, Hamilton had a specific need for a propulsion system to operate in very shallow water, and the waterjet proved to be the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller
A propeller (often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft (ship), propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from stern sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the blade to the wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Runabout (boat)
A runabout is any small motorboat holding between four and eight people, well suited to moving about on the water. Characteristically between 20' and 35' in length, runabouts are used for pleasure activities like boating, fishing, and water skiing, as a ship's tender for larger vessels, or in racing. Some common runabout types are Bow Rider, bow rider, Center console (boat), center console, cuddy boat and Walkaround (boat), walkaround. The world's largest runabout, ''Pardon Me'', is 48 feet long and owned by the Antique Boat Museum in Clayton, New York. History The first runabouts date back to the 1920s and were originally small, fast, powerful, varnished, wooden boats created to take advantage of the power of outboard motors such as the first Evinrude Outboard Motors, Evinrude, introduced in 1909. In order to gain speed, the hull shape had to be designed to take advantage of Hydroplaning (tires), hydroplaning; a hydrofoil-like design would allow the boat to skim atop the wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
