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X-class Submarines
X class or Class X may refer to: Automobiles * Mercedes-Benz X-Class, a luxury pickup truck Railway locomotives * TGR X class, a class of diesel-electric locomotives used by the Tasmanian Government Railways * NZR X class, a class of steam locomotives used by the New Zealand Railways Department * South Australian Railways X class, a class of steam locomotives used by the South Australian Railways * Victorian Railways X class, a class of steam locomotives used by the Victorian Railways in Australia * Victorian Railways X class (diesel), a class of diesel locomotives used by the Victorian Railways in Australia * WAGR X class, a class of diesel locomotives used in Western Australia * NCC Class X, a class of steam locomotives used in Northern Ireland * NER Class X, a class of steam locomotives used on the North Eastern Railway of Britain * Nilgiri Mountain Railway X class, a class of rack and pinion steam locomotives used in India Ships * X-class submarine, a British midget submarin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercedes-Benz X-Class
The Mercedes-Benz X-Class (W470) is a luxury pickup truck that was sold by the German automaker Mercedes-Benz, a division of German multinational company Daimler AG. Unveiled at a world premiere in Cape Town, South Africa in July 2017, the pickup took its chassis from the Nissan Navara and employed many Mercedes-specific features and technologies, including some engines not shared with the Navara. It first went on sale in late 2017. Development In 2015, Mercedes-Benz announced that development of a pickup truck was in the works. The new vehicle, developed in conjunction with the Renault-Nissan-Mitsubishi Alliance, was to be assembled at Nissan and Renault plants in Europe and South America. On 25 October 2016, Mercedes-Benz announced a concept class called the X-Class Concept. Dieter Zetsche, Daimler Chairman and head of Mercedes-Benz cars, said it would help a growing segment. It was slated to be only available in Australia, New Zealand, Europe, Latin America, and Africa. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nilgiri Mountain Railway X Class
The X class is a metre gauge 0-8-2RT rack and pinion compound locomotive used by the Nilgiri Mountain Railway in the Nilgiri Hills of southern India. They are used on the section between Coonoor and Mettupalayam, where the steepest gradient is 1 in 12.5. The railway uses the Abt system on these steep sections. The locomotives have two high-pressure and two low-pressure cylinders, located outside the locomotive's frames. The low-pressure cylinders drive the rack gears, and are positioned above the two main high-pressure cylinders which drive the main wheels. This class of engine was acquired to replace the line's original Beyer, Peacock & Company 2-4-0RT rack locomotives, which were not powerful enough to handle the traffic. The X-class locomotives were bought in two batches from the Swiss Locomotive & Machine Works, Winterthur, Switzerland. The first batch of 12 was delivered between 1914 and 1925, and the second batch of five was delivered in 1952. Four more members of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenth Grade
Tenth grade or grade 10 (called Year Eleven in England and Wales, and sophomore year in the US) is the tenth year of school post-kindergarten or the tenth year after the first introductory year upon entering compulsory schooling. In many parts of the world, the students are 15 or 16 years of age, depending on when their birthday occurs. The variants of 10th grade in various countries are described below. Australia For most Australian states, Year 10 is the fourth year of a student's high school education. However, in the Northern Territory, it is the first year of senior school, which occurs after high school. While in contrast, in most South Australian public schools, it is the third year of high school. For more in depth information on Australia's education system, see: Education in Australia. Belgium In Belgium, the 10th grade is called ''4e secondaire'' in French (Walloon), or ''4de middelbaar'' in Dutch (Flemish). Brazil In Brazil, the tenth grade is the ''"primeiro ano d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drone Racing
First Person View, or FPV, drone racing, is a sport where participants control " drones" (typically small radio-controlled aircraft or quadcopters), equipped with cameras while wearing head-mounted displays showing the live stream camera feed from the drones. Similar to full size air racing, the goal is to complete a set course as quickly as possible. Drone racing began in Germany in 2011 with a number of amateur pilots getting together for semi-organized races in Karlsruhe. Technology FPV (first person view) flying means that pilots only see what the drone sees. This is accomplished by live streaming footage from a camera mounted on the nose of the drone. The image is transmitted as analog video (typically 2.4 GHz or 5.8 GHz frequency, 1.3 GHz for distant transmission) to goggles or monitor worn by the pilot. The remote control, drone, and goggles are all connected via radio and must transmit with sufficient speed and reliability to allow effective control. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First-person View (radio Control)
First-person view (FPV), also known as remote-person view (RPV), or simply video piloting, is a method used to control a radio-controlled vehicle from the driver or pilot's view point. Most commonly it is used to pilot a radio-controlled aircraft or other type of unmanned aerial vehicle (UAV). The vehicle is either driven or piloted remotely from a first-person perspective via an onboard camera, fed wirelessly to video FPV goggles or a video monitor. More sophisticated setups include a pan-and-tilt gimbaled camera controlled by a gyroscope sensor in the pilot's goggles and with dual onboard cameras, enabling a true stereoscopic view. Airborne FPV Airborne FPV is a type of remote-control (RC) flying that has grown in popularity in recent years. It involves mounting a small video camera and an analogue video transmitter to an RC aircraft and flying by means of a live video down-link, commonly displayed on video goggles or a portable monitor. FPV became increasingly common throug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model Yachting
Model yachting is the pastime of building and racing model yachts. It has always been customary for ship-builders to make a miniature model of the vessel under construction, which is in every respect a copy of the original on a small scale, whether steamship or sailing ship. There are fine collections to be seen at both general interest museums such as the Victoria and Albert Museum in London and at many specialized maritime museums worldwide. Many of these models are of exquisite workmanship, every rope, pulley or portion of the engine being faithfully reproduced. In the case of sailing yachts, these models were often pitted against each other on small bodies of water, and hence arose the modern pastime. It was soon seen that elaborate fittings and complicated rigging were a detriment to rapid handling, and that, on account of the comparatively stronger winds in which models were sailed, they needed a greater draught. For these reasons modern model yachts, which usually have fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-class Lifeboat
Since its inception, the Royal National Lifeboat Institution (RNLI) has provided lifeboats to lifeboat stations in the United Kingdom and Ireland. Once past their operation life, the boats have mostly been sold by the RNLI and purchased for domestic use, marine businesses for usage such as further sea lifesaving functions, diving, fishing and pleasure trips or to maritime lifesaving institutions from other countries to continue a lifesaving role. Some lifeboats of particular historic note have been preserved in museums. History of lifeboats The Royal Institution for the Preservation of Life from Shipwreck (RNIPLS) was founded in March 1824. The RNIPLS provided lifeboats to local committees, the Coastguard and harbour authorities. The Duke of Northumberland financed a competition for a standard design of a lifeboat. The winner was William Plenty, of Newbury, Berkshire. These "pulling boats" (rowing) were between 18 and 26 feet in length and were powered by between 4 and 10 oars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-class Submarine
The X class was a World War II midget submarine class built for the Royal Navy during 1943–44. It was substantially larger than the original Chariot manned torpedo. Known individually as X-Craft, the vessels were designed to be towed to their intended area of operations by a full-size "mother" submarine – usually one of the T class or S class – with a passage crew on board, the operational crew being transferred from the towing submarine to the X-Craft by dinghy when the operational area was reached, and the passage crew returning with the dinghy to the towing submarine. Once the attack was over, the X-Craft would rendezvous with the towing submarine and then be towed home. Range was limited primarily by the endurance and determination of their crews, but was thought to be up to 14 days in the craft or 1,200 miles (1931 km) distance after suitable training. Actual range of the X-Craft itself was surfaced and at submerged. Specification The craft was about long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NER Class X
The NER Class X (LNER Class T1) was a class of 4-8-0T tank locomotive designed by Wilson Worsdell for the North Eastern Railway. They were intended for use as powerful shunting engines to arrange and move coal wagons for loading into ships. In total 15 were built, 10 by the NER between 1909 and 1910, and a further five in 1925 by the London and North Eastern Railway (LNER). They had three cylinders with divided drive: the inside cylinder driving the leading axle, the outside cylinders driving the centre. Overview The reversing gear was originally mechanical, but was replaced on all but two of the locomotives (nos. 1355/8) by steam-operated reversing gear between 1932 and 1934. The steam reversing gear was removed again between 1941 and 1947. In 1929, No. 1656 was moved to the newly built Whitemoor Yard at March, Cambridgeshire. In 1932, this locomotive was replaced by Nos. 1355 and 1358. Whitemoor preferred the ex-GCR 0-8-4T ( LNER Class S1) for hump shunting, so in 1934 No 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TGR X Class
The X class is a class of diesel locomotives built by English Electric for the Tasmanian Government Railways between 1950 and 1952. They were the first class of diesel locomotive to enter mainline service on a Government-owned railway in Australia. Description The power generating unit consists of an English Electric 6SRKT Mark I engine, developing at 750 revs. per minute. The engine is turbocharged and has vertical cylinders of bore and stroke. The main generator is coupled directly to the engine crankshaft and the auxiliary generator is mounted on the free end of the main generator.Tasmanian Government Railways Vulcan Locomotives 1950 To house the power unit and auxiliary equipment, the superstructure is divided into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NCC Class X
The Northern Counties Committee (NCC) Class X was a solitary diesel-hydraulic shunting (switcher) locomotive built by Harland and Wolff (H&W) for service in the NCC's yards and at Belfast docks. It was one of several pioneering designs of diesel locomotive produced by H&W under their ''Harlandic'' trademark during the 1930s and 1940s. History There was only one member of Class X, No.17. It was built by Harland and Wolff in Belfast and delivered to the NCC in 1936 under a lease arrangement; it was not actually taken into stock until 1941 when the NCC purchased it. No.17 had an 0-6-0 wheel arrangement and was powered by an eight-cylinder diesel engine developing at 1200 rpm. Transmission was via a torque converter and a jackshaft final drive mounted ahead of the leading coupled wheels. In addition, there was a two-speed gearbox with ratios of 5.76:1 and 19.52:1 giving top speeds of and respectively in both forward and reverse. As delivered, it had its maker's trade name ''Harl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WAGR X Class
The X Class were a class of diesel locomotive built by Beyer, Peacock & Company and Metropolitan-Vickers, Bowesfield Works, Stockton-on-Tees for the Western Australian Government Railways between 1954 and 1956. Construction In the early 1950s the Western Australian Government Railways placed the largest single Australian order for diesel locomotives, when it ordered 48 2-Do-2 locomotives from Beyer, Peacock and Company and Metropolitan-Vickers. All were delivered between 1954 and 1956. The seeds for the construction of the class were laid in by the then WAGR Chief Mechanical Engineer, Tom Marsland, with a proposal for the acquisition of 87 diesel locomotives, including 3 small jetty shunters, 18 diesel shunters and 66 mainline locomotives, later reduced to 48 when railcars were selected for suburban service. The proposal developed further during discussions with Beyer, Peacock regarding issues with the design of the W Class locomotive. Operation The X class revolutionised ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
