S-Motor was the class designation given by the New York Central to its ALCO-GE built S-1, S-2, S-2a and S-3 electric locomotives. The S-Motors hold the distinction of being the world's first mass-produced main line electric locomotives with the prototype #6000 being constructed in 1904. The S-Motors would serve alone until the more powerful T-motors began to arrive in 1913, eventually displacing them from main line passenger duties. From that point the class was assigned to shorter commuter trains and deadheadrolling stock between Grand Central Terminal and Mott Haven coach yard. Some examples, including the prototype later renumbered #100, would serve in this capacity through the Penn Central merger in 1968, only being retired in the 1970s as long distance passenger traffic to Grand Central dried up.
Unit 6000 hauling a train with various railway officials, 1904
After a disastrous 1902 accident in the Park Avenue Tunnel the New York legislature passed a law banning steam locomotives within the city limits effective in 1908. Seeing an opportunity, the railroad decided this could mean a chance to completely rebuild its congested Midtown Manhattan stub end terminal and yard facilities. The electrification project would see not only the construction of the Grand Central Terminal itself, but miles of completely underground platforms and yard tracks which would not have been possible with exhaust-producing steam locomotives.
Having already found success with the world's first main line electrification project in Baltimore in 1895, ALCO and General Electric were tasked with designing a new locomotive for the project with Alco building the engine and GE supplying the electrical equipment. The initial prototype locomotive, delivered as Class L #6000, was in the 1-D-1 configuration with 4 gearless "bi-polar" type traction motors which used the axle shaft as the motor armature. Between October 1904 and July 1906 #6000 racked up 50,000 miles (80,000km) in test on a track near both Alco and GE plants in Schenectady, New York.
The advantages of the new locomotive were striking. It was only half the length of a standard steam locomotive with tender and weighed only two thirds as much, but could provide more power, especially when starting trains on steep grades. It was capable of rapid acceleration and deceleration, ideal for the Hudson and Harlem lines’ numerous, closely spaced commuter rail stations. The locomotive required no turntable and could be reversed for service in the opposite direction in a matter of seconds. With the tests complete an order was placed for 34 additional locomotives to be delivered in the 3400 series and classed T-2 with the original being re-classed T-1.
Unfortunately, two days into the new electric service in 1907 a train led by two T-2 class locomotives number 3407 and 3421 derailed on a curve on the Harlem Line killing 24 and injuring 140. The investigation identified design flaws involving the long rigid wheelbase and its performance at high speed. The solution was to convert the entire class to use 2 axle leading and trailing trucks to better guide the locomotive around curves. Units already delivered were modified to fit the extra wheels and units not delivered were modified in the factory. Again the class was changed from T to S. Finally in 1908 an additional batch of 12 locomotives, class S-3, were ordered to support the electrification being extended to North White Plains on the Harlem Line.
The original S-Motor, former No. 6000, awaiting restoration south of Albany, NY in 2012.
With weight split between powered and unpowered axles the S motors were never completely satisfactory at pulling long heavy trains at high speed. The 1907 accident only made matters worse with additional unpowered axles being added and new speed restrictions imposed. Finally in 1913 the new class of T-Motors arrived, displacing the S Motors from first line service. For the next 60 years the S-motors were assigned to short local commuter trains and empty equipment movements between Grand Central and the Coach Yards at Mott Haven. They were later re-numbered into the 1100 series and ultimately the 100 series with some examples surviving the Penn Central merger. The combination of the New Haven's new 60 unit strong electro-diesel FL-9 to handle short commuter trains and the drastic reduction in long distance passenger trains using the Mott Haven coach yards eventually ended these niche applications as well. Their final assignment was switching service in the underground yards of Grand Central Terminal. The last S motor, #115, was finally retired from Conrail commuter operations in 1981 after 75 years in service, being replaced by GE E-10steeplecab units acquired second hand from the Niagara Junction Railroad after Conrail took control of that operation.[1]
Metro-North Railroad, trading as MTA Metro-North Railroad, is a suburban commuter rail service operated by the Metropolitan Transportation Authority (MTA), a public authority of the U.S. state of New York. Metro-North serves the New York Metropolitan Area, running service between New York City and its northern suburbs in New York and Connecticut, including Port Jervis, Spring Valley, Poughkeepsie, Yonkers, New Rochelle, Mount Vernon, White Plains, Southeast and Wassaic in New York and Stamford, New Canaan, Danbury, Bridgeport, Waterbury, and New Haven in Connecticut. Service in Connecticut is operated under contract with the Connecticut Department of Transportation. Metro-North also provides local rail service within the New York City boroughs of Manhattan and the Bronx.
The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston in the north to Washington, D.C. in the south, with major stops in Providence, New Haven, Stamford, New York City, Newark, Trenton, Philadelphia, Wilmington, and Baltimore. The NEC closely parallels Interstate 95 for most of its length. Carrying more than 2,200 trains a day, it is the busiest passenger rail line in the United States by ridership and service frequency.
The New York, New Haven and Hartford Railroad, commonly known as The Consolidated, or simply as the New Haven, was a railroad that operated principally in the New England region of the United States from 1872 to December 31, 1968. Founded by the merger of the New York and New Haven and Hartford and New Haven railroads, the company had near-total dominance of railroad traffic in Southern New England for the first half of the 20th century.
Montreal Locomotive Works (MLW) was a Canadian railway locomotive manufacturer that existed under several names from 1883 to 1985, producing both steam and diesel locomotives. For many years it was a subsidiary of the American Locomotive Company. MLW's headquarters and manufacturing facilities were in Montreal, Quebec.
The EMD FL9 is a model of electro-diesel locomotive, capable of operating either as a traditional diesel-electric locomotive or as an electric locomotive powered from a third rail. Sixty units were built between October 1956 and November 1960 by General Motors Electro-Motive Division for the New York, New Haven and Hartford Railroad.
The Harlem Line is an 82-mile (132 km) commuter rail line owned and operated by the Metro-North Railroad in the U.S. state of New York. It runs north from New York City to Wassaic, in eastern Dutchess County. The lower 53 miles (85 km) from Grand Central Terminal to Southeast, in Putnam County, is electrified with a third rail and has at least two tracks. The section north of Southeast is a non-electrified single-track line served by diesel locomotives. Before the renaming of the line in 1983, it eventually became the Harlem Division of the New York Central Railroad. The diesel trains usually run as a shuttle on the northern end of the line, except for rush-hour express trains in the peak direction.
The New Haven Line is a 72.7 mi (117.0 km) commuter rail line operated by the Metro-North Railroad in the U.S. states of New York and Connecticut. Running from New Haven, Connecticut, to New York City, the New Haven Line joins the Harlem Line in Mount Vernon, New York, and continues south to Grand Central Terminal in Manhattan. The New Haven Line carries 125,000 passengers every weekday and 39 million passengers a year. The busiest intermediate station is Stamford, with 8.4 million passengers, or 21% of the line's ridership.
The Danbury Branch is a diesel branch of the Metro-North Railroad's New Haven Line in the U.S. state of Connecticut, running from downtown Norwalk north to Danbury. It opened in 1852 as the Danbury and Norwalk Railroad. Until the early 1970s, passenger service continued north from Danbury to Canaan, Connecticut, and Pittsfield, Massachusetts. Metro-North took over operation of the line from Conrail in 1983, and the modern-day branch is mostly single-tracked.
The Pennsylvania Railroad's class P5 comprised 92 mixed-traffic electric locomotives constructed 1931–1935 by the PRR, Westinghouse and General Electric. Although the original intention was that they work mainly passenger trains, the success of the GG1 locomotives meant that the P5 class were mostly used on freight. A single survivor, prototype #4700, is at the National Museum of Transportation in St Louis, Missouri.
The Pennsylvania Railroad's class B1 comprised 42 electric switcher locomotives built between 1926 and 1935. They were of 0-6-0 wheel arrangement in the Whyte notation with 700 horsepower. As built, the first 28 locomotives in the 1926 order formed semi-permanently coupled pairs grouped in three classes.
Railroad electrification in the United States began at the turn of the 20th century and comprised many different systems in many different geographical areas, few of which were connected. Despite this situation, these systems shared a small number of common reasons for electrification.
T-Motor was the class designation given by the New York Central to its ALCO-GE built T-1a, T-1b, T-2a, T-2b, and T-3a electric locomotives. The T-Motors were the New York Central's second electric locomotive purchase after the original class of S-Motors. The T-motors continued on in service with the New York Central and a few continued on with the Penn Central after the 1968 merger.
The Pennsylvania Railroad's MP54 was a class of electric multiple unit railcars. The class was initially constructed as an unpowered, locomotive hauled coach for suburban operations, but were designed to be rebuilt into self-propelled units as electrification plans were realized. The first of these self-propelled cars were placed in service with the PRR subsidiary Long Island Rail Road with DC propulsion in 1908 and soon spread to the Philadelphia-based network of low frequency AC electrified suburban lines in 1915. Eventually the cars came to be used throughout the railroad's electrified network from Washington, D.C. to New York City and Harrisburg, Pennsylvania.
The RP-210 was a streamlined 1,000 hp (750 kW) locomotive built in 1956 by Baldwin-Lima-Hamilton, specifically to operate with the experimental, all-aluminum Train-X coaches that were built by the Pullman-Standard Car Manufacturing Company. The model represented Baldwin's attempted entry into the lightweight passenger locomotive market, but only three of the low-slung diesel-hydraulic units were produced. The first RP-210 was built for the New York Central Railroad to power their Ohio Xplorer train between Cleveland, Columbus, and Cincinnati, and a pair was purchased by the New York, New Haven and Hartford Railroad to double-end their Dan'l Webster, running between New York City and Boston.
The Highbridge Facility, also simply known as Highbridge or High Bridge, is a maintenance facility for the Metro-North Railroad in the Highbridge section of the Bronx, New York City, United States. It is the third stop along the Hudson Line north of Grand Central Terminal, and is for Metro-North employees only, though this stop also formerly served commuter rail passengers and was called High Bridge station.
The GE boxcabs, sometimes also GE IR boxcabs, were diesel-electric switcher locomotives succeeding the ALCO boxcabs. The locomotives were built by General Electric and Ingersoll Rand without ALCO. Production lasted from 1928 to 1930. These boxcabs were often termed oil-electrics to avoid the use of the German name Diesel, unpopular after World War I.
P-Motor was the class designation given by the New York Central a fleet of 22 ALCO-GE electric passenger locomotives. The P Motors were not only more powerful than previous New York Central electrics, but also a more advanced design using the highly successful 2-C+C-2 wheel arrangement found on the later PRR GG1 and New Haven EP-3 classes as well as nose suspended traction motors. Although originally built and owned by a consortium of railroads involved in the large scale Cleveland Union Terminal project, the New York Central was the majority owner and later acquired them outright in the 1950s when the Terminal's electrification scheme was scrapped in favor of diesel locomotives. Rebuilt and re-classified as P-2, the 21 remaining engines were sent to the New York electrified zone to supplement the aging fleet of T-Motors that had been purchased starting in 1913. There they played out the remainder of their careers pulling the Central's premier passenger trains.
R-Motor was the class designation given by the New York Central one prototype and a later fleet of 42 ALCO-GE built electric freight locomotives for use in the New York Electrified Zone. In conjunction with the P Motors, the Rs marked the second generation of electric locomotives built for the New York Central. Also like the P Motors they used advanced nose suspended traction motors and the R-2s were some of the first North American locomotives to make use of the C-C wheel arrangement, which later became the standard for diesel electric road freight.
Baldwin, the locomotive manufacturer, and Westinghouse, the promoter of AC electrification, joined forces in 1895 to develop AC railway electrification. Soon after the turn of the century, they marketed a single-phase high-voltage system to railroads. From 1904 to 1905 they supplied locomotives carrying a joint builder's plate to a number of American railroads, particularly for the New Haven line from New York to New Haven, and other New Haven lines. Westinghouse would produce the motors, controls, and other electrical gear, while Baldwin would produce the running gear, frame, body, and perform final assembly.
Maine Central Railroad began operating diesel locomotives in 1935, and had retired all steam locomotives by 1954. That time interval was a joint operating period with the Boston and Maine Railroad (B&M). This article describes diesel locomotives owned by Maine Central through the period of joint operation and later independent operation prior to Guilford Rail System control in 1981.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
