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R42 (New York City Subway Car)
The R42 was a New York City Subway car model built by the St. Louis Car Company between 1969 and 1970 for the IND/ BMT B Division. There were 400 cars in the R42 fleet, numbered 4550–4949. It was the last B Division car built for the New York City Subway until the R143 in 2001, and the last car model class to be built in married pairs. The first R42 cars entered service on May 9, 1969. Various modifications were made over the years to the R42 fleet. In the late 1980s, the R42 cars were rebuilt by Morrison–Knudsen and the Coney Island Rapid Transit Car Overhaul Shop. The R160 order replaced most of the R42s in the late 2000s, though 50 cars of the original fleet remained. The R179 order replaced the remainder of the R42s in the late 2010s, and the final train of R42s ran in passenger service on February 12, 2020. After retirement, most of the cars were sunk as artificial reefs, scrapped, or placed into storage, but a handful have been preserved and others retained for vari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
J (New York City Subway Service)
The J Nassau Street Local and Z Nassau Street Express are two rapid transit services in the B Division of the New York City Subway. Their route emblems, or "bullets", are colored since they use the BMT Nassau Street Line in Lower Manhattan. The J operates at all times while the Z, operating as its rush-hour variant, runs with six trips in each peak direction on weekdays. Both services run through the entirety of the BMT Archer Avenue and Jamaica lines, via the Williamsburg Bridge, and the Nassau Street Line between Jamaica Center–Parsons/Archer in Jamaica, Queens, and Broad Street in Lower Manhattan. When the Z operates, the two services form a skip-stop pair between Sutphin Boulevard–JFK and Myrtle Avenue-Broadway. In addition during rush hours and middays in the peak direction, they run express in Brooklyn between Myrtle Avenue-Broadway and Marcy Avenue, bypassing three stations. At all other times, only the J operates, serving every station on its entire route. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twin Unit
A twin unit or twinset is a set of two railroad cars or locomotives which are permanently coupled and treated as if they were a single unit. A twinset of cars or coaches can also be called a twin car. In US passenger railroad parlance, twin units are also known as married pairs. On passenger railroads, light rail, and monorail services, married pairs may have machinery necessary for full operation of the cars split between them. Items that are typically shared include transformers, motor controllers, dynamic braking grids, cabs, current collectors, batteries, and air compressors. This provides significant savings in both cost of equipment and weight, which increases performance and decreases energy consumption. The cost of operating such a pair may be slightly higher when the extra car in such a pair is not needed to meet level-of-service demands at a particular time. See also * Cow-calf * Multiple unit A multiple-unit train or simply multiple unit (MU) is a self-p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Transportation
The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the secretary of transportation, who reports directly to the President of the United States and is a member of the president's Cabinet. The department's mission is "to develop and coordinate policies that will provide an efficient and economical national transportation system, with due regard for need, the environment, and the national defense." History Prior to the creation of the Department of Transportation, its functions were administered by the under secretary of commerce for transportation. In 1965, Najeeb Halaby, administrator of the Federal Aviation Agency (predecessor to the Federal Aviation Administration, FAA), suggested to President Lyndon B. Johnson that transportation be elevated to a cabinet-level post, and that the FAA be folded into the DOT. It was established by Congress in the Department of Transportatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flywheel Energy Storage
Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the system correspondingly results in an increase in the speed of the flywheel. Most FES systems use electricity to accelerate and decelerate the flywheel, but devices that directly use mechanical energy are being developed.Torotrak Toroidal variable drive CVT , retrieved June 7, 2007. Advanced FES systems have rotors made of high strength carbon-fiber composites, suspended by |
California
California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the most populated subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento is the state's capital, while Los Angeles is the most populous city in the state and the second most populous city in the country. San Francisco is the second most densely populated major city in the country. Los Angeles County is the country's most populous, while San Bernardino County is the largest county by area in the country. California borders Oregon to the north, Nevada and Arizona to the ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles
Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits , Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to it's east. It covers about , and is the county seat of Los Angeles County, which is the most populous county in the United States with an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garrett AiResearch
Garrett AiResearch was a manufacturer of turboprop engines and turbochargers, and a pioneer in numerous aerospace technologies. It was previously known as Aircraft Tool and Supply Company, Garrett Supply Company, AiResearch Manufacturing Company, or simply AiResearch. In 1964, Garrett AiResearch merged with Signal Oil & Gas to form a company renamed in 1968 to Signal Companies, which in 1985 merged with Allied Corp. into AlliedSignal. In 1999 AlliedSignal acquired Honeywell and adopted the Honeywell name. Founding years John Clifford "Cliff" Garrett founded a company in Los Angeles in 1936 which came to be known as Garrett AiResearch or simply AiResearch. The company was first named Aircraft Tool and Supply Company, then by early 1937 was renamed as Garrett Supply Company, and by 1939, AiResearch and shortly thereafter AiResearch Manufacturing Company, which then became a division within the Garrett Corporation. Already operating his Garrett Supply and Airsupply businesses, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R46 (New York City Subway Car)
The R46 is a New York City Subway car model that was built by the Pullman Standard Company from 1975 to 1978 for the IND/ BMT B Division. They replaced all remaining Arnine cars and General Electric-powered R16s, and some R10s. The R46 order initially consisted of 754 single cars, each long, and was the largest single order of passenger cars in United States railroad history at the point of the fleet's completion. The R46 was the second order of 75-foot cars to be ordered for the New York City Subway, after the R44s. The first R46s ran in passenger service on July 14, 1975. The fleet was initially slated to be delivered between 1973 and 1975, but a strike at Pullman's factory delayed final deliveries until 1978. Several hundred cracks were found in the R46 trucks during their first few years of service, leading them to be referred to as "the most troubled cars ever purchased". Morrison–Knudsen rebuilt the R46s in 1990–1992. They are expected to remain in service until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R44 (New York City Subway Car)
The R44 is a New York City Subway car model built by the St. Louis Car Company from 1971 to 1973 for the B Division and the Staten Island Railway (SIR). The cars replaced many R1-R9 series cars, and all remaining 1925 Standard Steel built SIRTOA ME-1 trains, providing Staten Island with a new fleet of railcars. The R44 fleet originally consisted of 352 cars, of which 61 remain in service, all on the Staten Island Railway. The first R44 cars entered service on the subway on April 19, 1972, and on the Staten Island Railway on February 28, 1973. Various modifications were made over the years to the R44 fleet. The R44s set the world speed record for a subway car in 1972, reaching a top speed of . In the early 1990s, the R44 cars were rebuilt by Morrison–Knudsen or the New York City Transit Authority. Though the R160 order replaced all New York City Subway-operated R44s from December 18, 2009 to September 16, 2010 because of structural integrity issues found on them, the St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R62 (New York City Subway Car)
The R62 is a New York City Subway car model built between 1983 and 1985 by Kawasaki Heavy Industries in Kobe, Japan, for the A Division. A total of 325 cars were built, originally as single car units. When the reliability of the fleet improved, they were converted to five-car sets. The cars replaced the remaining R12s, R14s, and R15s, which were all retired by the end of 1984. The R62 was the first order of A Division cars in 20 years (following the R36 order from 1963), and the first stainless steel subway car built for the A Division. The first cars entered revenue service testing on November 29, 1983, and officially entered service on May 7, 1984. The R62s are scheduled to remain in service until 2023–2026, when they will be replaced with the R262s. Description The R62s are numbered 1301–1625, totaling 325 cars. Each car was purchased at an average price of US$918,293. The R62 was the first stainless steel and air-conditioned subway car built for the A Division. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R40 (New York City Subway Car)
The R40 was a New York City Subway car model built by the St. Louis Car Company from 1967 to 1969 for the IND/ BMT B Division. There were 400 cars in the R40 fleet, arranged in married pairs. Two versions of the R40 were manufactured: the original 200-car R40 order built in 1967–1968, and the supplementary 200-car R40A order built in 1968–1969. The 200 original R40s and the first 100 R40As were unique for their futuristic 10-degree slanted end (designed by the firm Raymond Loewy and Associates) and were nicknamed the R40 Slants or simply Slants. The first R40s entered service on March 23, 1968. Various modifications were made over the years to the R40 fleet, including a complete redesign to the last 100 R40As. In 1987–1989, the R40s and R40As were rebuilt by Sumitomo Corp. of America. The R160 subway car order replaced all of the R40s and R40As from 2007 to 2009; the last slant-ended train ran on June 12, 2009, while the last straight-ended R40As ran on August 28, 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R38 (New York City Subway Car)
The R38 was a New York City Subway car model built by the St. Louis Car Company from 1966 to 1967 for the IND/BMT B Division. Two hundred were built in married pairs. The R38s were built to supply extra trains for service changes resulting from the 1967 opening of the Chrystie Street Connection. The R38 was the second subway car order to be built with stainless steel exteriors, and the first subway car fleet to have air conditioning installed. The first R38s entered service on August 23, 1966. In 1987–1988, all R38s were rebuilt by General Electric, and the original rollsigns and express/local marker lights at the end of each car were replaced with flipdot signs. The R160 order replaced the entire fleet of R38s, the last of which ran on March 18, 2009. After retirement, all cars but one pair, which is preserved by the New York Transit Museum, were stripped and sunken as artificial reefs. Description The R38s were numbered 3950–4149. The cars were arranged in "married ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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