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Bowloader
A bowloader or bow-coxed shell is a racing shell (a type of boat used in rowing) in which the coxswain lies semi-supine in the bow, as opposed to the normal seated position at the stern. Bowloaders are often seen as coxed fours and also coxed pairs. A small number of bowloader eights exist, and one was raced by the Soviet Union in the 1988 Olympics and the 1989 Royal Henley Regatta, as well as the Russian men's crew at the 2002 World Rowing Junior Championships. Steering is difficult because the bow swings less than the stern, so that the coxswain has trouble judging how much the boat has moved laterally, and this problem is exacerbated in an eight. A bowloader is slightly faster than a stern-coxed boat, since the mass of the coxswain in the bow reduces porpoising, and the semi-supine position puts the coxswain's center of mass below the waterline, reducing roll. Both of these factors help to reduce drag. The cox also has better forward vision in a bowloader: in the con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coxed Four
A coxed four, also known as a 4+, is a rowing boat used in the sport of competitive rowing. It is designed for four persons who propel the boat with sweep oars and is steered by a coxswain. The crew consists of four rowers, each having one oar, and a cox. There are two rowers on the stroke side (rower's right hand side) and two on the bow side (rower's lefthand side). The cox steers the boat using a rudder and may be seated at the stern of the boat where there is a view of the crew or in the bow (known as a bowloader). With a bowloader, amplification is needed to communicate with the crew which is sitting behind, but the cox has a better view of the course and the weight distribution may help the boat go faster. When there is no cox, the boat is referred to as a "coxless four". Racing boats (often called "shells") are long, narrow, and broadly semi-circular in cross-section in order to reduce drag to a minimum. Originally made from wood, shells are now almost always m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coxed Pair
A coxed pair is a rowing boat used in the sport of competitive rowing. It is designed for two persons who propel the boat with sweep oars and is steered by a coxswain. The crew consists of two rowers, each having one oar, and a cox. One rower is on the stroke side (rower's right hand side) and other is on the bow side (rower's lefthand side). The cox steers the boat using a rudder and may be seated at the stern of the boat where there is a view of the crew or in the bow (known as a bowloader). With a bowloader, amplification is needed to communicate with the crew which is sitting behind, but the cox has a better view of the course and the weight distribution may help the boat go faster. When there is no cox, the boat is referred to as a "coxless pair". Racing boats (often called "shells") are long, narrow, and broadly semi-circular in cross-section in order to reduce drag to a minimum. Originally made from wood, shells are now almost always made from a composite mate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eight (rowing)
An eight is a rowing boat used in the sport of competitive rowing (crew). It is designed for eight rowers, who propel the boat with sweep oars, and is steered by a coxswain, or "cox". Each of the eight rowers has one oar. The rowers, who sit in a line in the centre of the boat and facing the stern, are usually placed alternately, with four on the port side (rower's right hand side - also traditionally known as "stroke side") and four on the starboard side (rower's lefthand side - known as "bow side"). The cox steers the boat using a rudder and is normally seated at the stern of the boat. Because of the speed of the boat, it is generally considered unsafe to row coxless or to have a bowloader cox. Racing boats (often called "shells") are long, narrow, and broadly semi-circular in cross-section in order to reduce drag to a minimum. Originally made from wood, shells are now almost always made from a composite material (usually carbon-fibre reinforced plastic) for strength a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rowing (sport)
Rowing, sometimes called crew in the United States, is the sport of racing boats using oars. It differs from paddling sports in that rowing oars are attached to the boat using oarlocks, while paddles are not connected to the boat. Rowing is divided into two disciplines: sculling and sweep rowing. In sculling, each rower holds two oars—one in each hand, while in sweep rowing each rower holds one oar with both hands. There are several boat classes in which athletes may compete, ranging from single sculls, occupied by one person, to shells with eight rowers and a coxswain, called eights. There are a wide variety of course types and formats of racing, but most elite and championship level racing is conducted on calm water courses long with several lanes marked using buoys. Modern rowing as a competitive sport can be traced to the early 17th century when professional watermen held races (regattas) on the River Thames in London, England. Often prizes were offered by the Londo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racing Shell
In watercraft, a racing shell (also referred to as just a ''fine boat'' (UK) or just ''shell'') is an extremely narrow, and often comparatively long, rowing boat specifically designed for racing or exercise. It is outfitted with long oars, outriggers to hold the oarlocks away from the boat, and sliding seats. The boat's long length and semicircular cross-section reduce drag to a minimum. This makes the boat both fast and unstable. It must be balanced by the rowers to avoid tipping. Being able to balance – or "set" – the boat while putting maximum effort into the oars is therefore an essential skill of sport rowing. History The racing shell evolved from the simple working rowboat. Boats with longer hulls and narrower in beam were developed in the early 19th century specifically for team racing. These dedicated boats were the first boats that could be called racing shells, and they evolved into the highly specialized forms used today. Riggers A narrower boat provides a sharp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Henley Regatta
Henley Royal Regatta (or Henley Regatta, its original name pre-dating Royal patronage) is a rowing event held annually on the River Thames by the town of Henley-on-Thames, England. It was established on 26 March 1839. It differs from the three other regattas rowed over approximately the same course, Henley Women's Regatta, Henley Masters Regatta, and Henley Town and Visitors' Regatta, each of which is an entirely separate event. The regatta lasts for six days (Tuesday to Sunday) ending on the first weekend in July. Races are head-to-head knock out competitions, raced over a course of . The regatta regularly attracts international crews to race. The most prestigious event at the regatta is the Grand Challenge Cup for Men's Eights, which has been awarded since the regatta was first staged. As the regatta pre-dates any national or international rowing organisation, it has its own rules and organisation, although it is recognised by both British Rowing (the governing body of rowin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loudspeakers
A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or "loudspeaker", comprises one or more such speaker ''drivers'', an enclosure, and electrical connections possibly including a crossover network. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This is thus the opposite function to the microphone; indeed the ''dynamic speaker'' driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amplifier
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It may increase the power significantly, or its main effect may be to boost the voltage or current ( power, voltage or current amplifier). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a greater amplitude signal at its output. The ratio of output to input voltage, current, or power is termed gain (voltage, current, or power gain). An amplifier, by definition has gain greater than unity (if the gain is less than unity, the device is an attenuator). An amplifier can either be a separate piece of equipment or an electrical circuit contained within another device. Amplification is fundamental to modern electronics, and amplifiers are widely used in almost all electronic equipment. Amplifiers can be ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Rowing Junior Championships
The World Rowing Junior Championships is an international rowing regatta organized by FISA (the International Rowing Federation). A rower or coxswain shall be classified as a Junior until 31 December of the year in which he reaches the age of 18. After that date, he shall be classified as an Under 23 rower. During Olympic years it is held at the same location as the Senior World Rowing Championships. The first FISA Youth Regatta was held in 1967 and has been held every year since then, being raised to the status of FISA Junior Champs in 1970 and Junior World Champs in 1985. Many European countries send athlete An athlete (also sportsman or sportswoman) is a person who competes in one or more sports that involve physical strength, speed, or endurance. Athletes may be professionals or amateurs. Most professional athletes have particularly well-de ...s not up to the standard for World Championships to the Coupe de la Jeunesse. Venues Medal table As of 2022. Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evert Kroes And Peter Van De Plas 1977
Evert is a Dutch and Swedish short form of the Germanic masculine name "Everhard" (alternative Eberhard). at the database of given names in the Netherlands. It is also used as surname. Notable people with the name include: Given name * (1602–1657), Dutch still life painter * (1772–1809), Norwegian naval officer *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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