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PRR AA1
The Pennsylvania Railroad's class AA1 comprised two experimental electric locomotives constructed in 1905 by the company's own Altoona Works with the assistance of Westinghouse. Intended as testbeds as the PRR began its electrification project, both locomotives remained service into the 1930s. History In the early 1900s, the Pennsylvania Railroad embarked on a major program to improve its access to New York City. The New York Tunnel Extension comprised tunnels and approaches from New Jersey and Long Island to Midtown Manhattan, leading to the PRR's massive new station, New York Penn Station. It was obvious that steam locomotives would be inappropriate for prolonged operation underground, so the PRR began experimenting with 600 V DC electrification, which had already been placed into operation elsewhere by the Baltimore and Ohio Railroad and the New York, New Haven and Hartford Railroad. The Pennsylvania Railroad constructed the two locomotives in its Altoona Works as testbeds f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altoona Works
Altoona Works (also known as Altoona Terminal) is a large railroad industrial complex in Altoona, Pennsylvania. It was built between 1850 and 1925 by the Pennsylvania Railroad (PRR), to supply the railroad with locomotives, railroad cars and related equipment. For many years, it was the largest railroad shop complex in the world. History In 1849, PRR officials developed plans to construct a repair facility at a town newly established for this purpose, Altoona. Construction was started in 1850, and soon a long building was completed in the 12th Street area that housed a machine shop, woodworking shop, blacksmith shop, locomotive repair shop and foundry. The 12th Street area facilities were replaced later by the Altoona Machine Shops. The first locomotive was built there in 1866. A total of 6,783 steam, diesel and electric locomotives were manufactured in Altoona between 1866 and 1946. In time, additional PRR repair facilities were located in Harrisburg, Pittsburgh, Renovo and M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Association Of American Railroads
The Association of American Railroads (AAR) is an industry trade group representing primarily the major freight Rail transport, railroads of North America (Canada, Mexico and the United States). Amtrak and some regional Commuter rail in North America, commuter railroads are also members. Smaller freight railroads are typically represented by the American Short Line and Regional Railroad Association (ASLRRA), although some smaller railroads and railroad holding companies are also members of the AAR. The AAR also has two associate programs, and most associates are suppliers to the railroad industry. Creation AAR was created October 12, 1934, by the merger of five industry-related groups: * The American Railway Association * The Association of Railway Executives * The Bureau of Railroad Economics * The Railway Accounting Officers Association * The Railway Treasury Officers Association William George Besler was its first President. Facilities and subsidiaries The AAR is headquarter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experimental Locomotives
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale but always rely on repeatable procedure and logical analysis of the results. There also exist natural experimental studies. A child may carry out basic experiments to understand how things fall to the ground, while teams of scientists may take years of systematic investigation to advance their understanding of a phenomenon. Experiments and other types of hands-on activities are very important to student learning in the science classroom. Experiments can raise test scores and help a student become more engaged and interested in the material they are learning, especially when used over time. Experiments can vary from personal and informal natural comparisons (e. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
600 V DC Locomotives
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics Six is the smallest positive integer which is neither a square number nor a prime number; it is the second smallest composite number, behind 4; its proper divisors are , and . Since 6 equals the sum of its proper divisors, it is a perfect number; 6 is the smallest of the perfect numbers. It is also the smallest Granville number, or \mathcal-perfect number. As a perfect number: *6 is related to the Mersenne prime 3, since . (The next perfect number is 28.) *6 is the only even perfect number that is not the sum of successive odd cubes. *6 is the root of the 6-aliquot tree, and is itself the aliquot sum of only one other number; the square number, . Six is the only number that is both the sum and the product of three consecutive positive numbers. Unrelated to 6's being a perfect number, a Golomb ruler of length 6 is a "perfect ruler". Six is a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Railroad Locomotives
Pennsylvania (; (Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's subsequent five ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-B Locomotives
BB, Bb, or similar, may refer to: In arts and entertainment *BB, abbreviation for a catalogue of works by Béla Bartók * ''BB'' (album), by Mod Sun (2017) *"BB Talk", 2015 song by Miley Cyrus * BB (Transformers), a character in the franchise *BB, pseudonym of author and artist Denys Watkins-Pitchford * Les B.B., a Canadian band from Quebec *BattleBots, a robot combat TV show *Beast Boy, a comic book character *Beyond Birthday, a character from the novel '' Death Note Another Note: The Los Angeles BB Murder Cases'' * Big Brother (''Nineteen Eighty-Four'') or BB in Orwell's novel * ''Big Brother'' (TV series), home living reality TV popularity contest show *Billy Butcher, supporting character and final antagonist of the ''The Boys'' comic book series ** ''Butcher, Baker, Candlestickmaker'', spin-off comic miniseries of ''The Boys'', following Billy Butcher *** "Butcher, Baker, Candlestick Maker" (''The Boys''), television adaptation of the comic miniseries *BB, the productio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Magazine
''Railroad Magazine'' was a pulp magazine founded by Frank Munsey, Frank Anderson Munsey and published October 1906 to January 1979. It was the first specialized pulp magazine with stories and articles about rail transport, railroads. The magazine merged with ''Railfan'' to form the new ''Railfan & Railroad'', published by Carstens Publications beginning after the final ''Railroad'' issue in 1979. Early years and development Frank Munsey (b. Maine, 1854) moved to New York City in 1892, where he authored a few books and published periodicals and newspapers in many cities. At the time that Munsey founded ''The Railroad Man's Magazine'', the first offices were located in the Flatiron Building in New York City and there was no organized railfan, railroad enthusiast movement. Initially the magazine was targeted towards railroaders and retirees. Fictionalized stories of working on the railroad became the cornerstone of the new magazine, along with profiles of current and historic rai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrap
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes. Scrap recycling is important for creating a more sustainable economy or creating a circular economy, using significantly less energy and having far less environmental impact than producing metal from ore. Metal recycling, especially of structural steel, ships, used manufactured goods, such as vehicles and white goods, is a major industrial activity with complex networks of wrecking yards, sorting facilities and recycling plants. Processing Scrap metal originates both in business and residential environments. Typically a "scrapp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Island Rail Road
The Long Island Rail Road , often abbreviated as the LIRR, is a commuter rail system in the southeastern part of the U.S. state of New York, stretching from Manhattan to the eastern tip of Suffolk County on Long Island. With an average weekday ridership of 354,800 passengers in 2016, it is the busiest commuter railroad in North America. It is also one of the world's few commuter systems that runs 24/7 year-round. It is publicly owned by the Metropolitan Transportation Authority, which refers to it as MTA Long Island Rail Road. In , the system had a ridership of , or about per weekday as of . The LIRR logo combines the circular MTA logo with the text ''Long Island Rail Road'', and appears on the sides of trains. The LIRR is one of two commuter rail systems owned by the MTA, the other being the Metro-North Railroad in the northern suburbs of the New York area. Established in 1834 and having operated continuously since then, it is the oldest railroad in the United States s ... [...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 In rail transport, a cow-calf (also cow and calf) locomotive is a set of switcher- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PRR DD1
The Pennsylvania Railroad DD1 was a class of boxcab electric locomotives built by the Pennsylvania Railroad. The locomotives were developed as part of the railroad's New York Tunnel Extension, which built the original Pennsylvania Station in New York City and linked it to New Jersey via the North River Tunnels. The Pennsylvania built a total of 66 locomotives in its Altoona Works; they operated in semi-permanently coupled pairs. Westinghouse supplied the electrical equipment. The first locomotives entered service in 1910, with the opening of Pennsylvania Station. They operated between Manhattan Transfer and Pennsylvania Station, and from there to the coach yards at Sunnyside Yard in Queens, New York. With the arrival of the Class L5 locomotives in 1924, some DD1s moved to the Pennsylvania-owned Long Island Rail Road (LIRR), which had substantial electrified commuter rail operations. The conversion of the New York–Philadelphia main line to alternating current in the 1930s s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whyte Notation
Whyte notation is a classification method for steam locomotives, and some internal combustion locomotives and electric locomotives, by wheel arrangement. It was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in ''American Engineer and Railroad Journal''. The notation was adopted and remains in use in North America and the United Kingdom to describe the wheel arrangements of steam locomotives (in the latter case also for diesel and electric locomotives), but for modern locomotives, multiple units and trams it has been supplanted by the UIC system in Europe and by the AAR system (essentially a simplification of the UIC system) in North America. Structure of the system Basic form The notation in its basic form counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, numbers being separated by dashes. For example, a locomotive with two lead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
