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SM-1 (Stationary, Medium-size reactor, prototype #1) was a 2-megawatt nuclear reactor developed by the American Locomotive Company (ALCO) and the United States Atomic Energy Commission (AEC) as part of the US Army Nuclear Power Program (ANPP) in the mid-1950s. The compact "package" reactor was designed to produce electricity and generate heat for remote military facilities. The first, the SM-1, served as the Army's primary training facility to train reactor operations personnel from all three services (Army, Navy and Air Force). In 1954, the Department of Defense placed the US Army in charge of all military nuclear power plants except those used for propulsion by the US Navy. The Army's Chief of Engineers established the US Army Engineer Reactors Group in April 1954, and decided to construct the SM-1 facility at the Corps of Engineers headquarters at Fort Belvoir , Virginia, about 18 miles (29 km) south of Washington, D.C. About 800 personnel were trained on the SM-1 during its operational life, from 1957 to 1973. The power plant was shut down in March 1973, and is monitored within a "restricted access" section of the post. Inspectors enter the shut-down operations control room every decade or so. USACE has started dismantling the SM-1 facility, and estimate completion by 2026.

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63-626: Research and development of the reactor design was conducted in 1952–54 at the Oak Ridge National Laboratory, under the guidance of the Package Power Group. Funding for the reactor was approved in 1954 and bids to construct the facility were received from 18 companies, ranging in price from $ 2 million to $ 7 million. According to Time magazine of 18 July 1955, the Army selected the low bid ($ 2,096,753), submitted by

126-650: A 5.5-mile (8.9 km) stretch between Hooes Road (Virginia Secondary Route 636) and the Richmond Highway ( U.S. Route 1 ) at Lorton . Several tributaries of the Pohick Creek are impounded by dams constructed under the Watershed Protection and Flood Prevention Act to prevent soil erosion and flooding. Originally eight dams were planned, but from 1970 to 1985, only six were actually built. The following variant names have been listed on

189-465: A community of about 5,000 people." Alco Products supplied the reactor, pressurizer and steam generator, while Westinghouse Electric Corporation supplied the canned-rotor pumps, General Electric supplied the turbine and generator, the Lummus Company supplied the condenser, and Minneapolis-Honeywell installed the controls. By late October 1955, the Army pushed ALCO to accelerate construction towards

252-481: A completion date of 10 July 1957. As a result, all major work was completed by March 1957. Construction was completed in 18 months, the SM-1 reactor achieved first criticality on 8 April 1957, and the plant was formally opened in a public ceremony on 29 April 1957. Designed as a small-scale, pressurized-water, commercial nuclear power plant the power output from the SM-1 was connected to the local electrical grid . Thus,

315-726: A consortium with General Electric (electrical equipment) and Ingersoll-Rand ( diesel engine ). This locomotive was sold to the Central Railroad of New Jersey . It built additional locomotives for the Long Island Rail Road and the Chicago and North Western Railway . The company bought the McIntosh & Seymour Diesel Engine Company in 1929 and henceforth produced its own diesel engines, though it always bought its electrical equipment from GE. The diesel program

378-520: A cost-plus estimate. On 14 December 1954, the AEC announced that the contract was being given to American Locomotive Company of New York, whose $ 2 million bid was the lowest of the 18 proposals received. Asking companies to submit a lump-sum bid was hailed, at that time, as a sign of how much progress had been made in reactor power plant design by mid-1954, such that companies now had sufficient experience and could calculate costs with confidence. Construction of

441-420: A healthy fleet of Alcos DL540 running commuter and cargo trains. The Glenbrook Vintage Railway New Zealand, has a 2-4-4-2 articulated compound mallet, built by Alco in 1912. Only four mallets with this wheel arrangement were ever built; the other three by Baldwin. This unique loco is currently out of service awaiting overhaul. During the 1970s, Romania's UCMR Resita made licensed engines from ALCo, putting

504-491: A household dishwasher. At a press conference held on 19 August 1954, (then) Major General Sturgis , Chief of Engineers , announced the plan by the Army and the AEC to build the "package" power plant at Fort Belvoir. A location in a "closed area" of the garrison had been selected, near a point at which Accotink Bay (aka, Gunston Cove ) joins the Potomac River. The general said the design of the package reactor resembles

567-545: A prototype gas-turbine–electric locomotive to address the concerns of operators such as Union Pacific that sought to minimize the number of locomotive units needed for large power requirements. In 1949, ALCo embarked on a clean-sheet design project to replace the 244. 1949 also saw the introduction of the EMD GP7 road–switcher, a direct challenge in ALCo's bread-and-butter market. In 1953, General Electric , dissatisfied with

630-481: A small quantity of ALCO DL-109 dual-service engines and its proven steam designs, while EMD (formerly EMC) was allocated the construction of mainline road freight diesels (the production of straight passenger-service engines was prohibited by the War Production Board ). Still, ALCo ranked 34th among United States corporations in the value of wartime production contracts. Alco's RS-1 road switcher

693-645: A step in the automotive career of Walter P. Chrysler , who worked as the plant manager. In 1911 he left Alco for Buick in Detroit, Michigan , where he subsequently founded the Chrysler Corporation in 1925. Alco made 60-ton center-cab electric freight motors from 1912 through the 1920s for electric railway lines in Oregon. Already a leader in steam locomotives , Alco produced the first commercially successful diesel–electric switch engine in 1924 in

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756-740: A subsidiary of Nitram Energy. Following the sale of these assets, Smithco remained in business, manufacturing other heat exchange products. In 1985, the assets acquired from Smithco were assigned by Bos-Hatten to its parent, Nitram. In 2008, Nitram was acquired by Peerless Manufacturing Co In 2015, Peerless sold its heat exchanger business to Koch Heat Transfer Co. After the closure of Alco's Schenectady works, locomotives to Alco designs continued to be manufactured in Canada by Montreal Locomotive Works and in Australia by AE Goodwin . In addition, Until 2022, Alco-derived locomotives accounted for most of

819-528: A time. At some later point, some of the heat exchanger products were manufactured by the Alco Products Division of Smithco Engineering in Tulsa, Oklahoma (Smithco). In January 1983, certain assets of the Alco Products Division of Smithco, namely double-pipe and hairpin-type heat exchanger products sold under the "Alco Twin" name, mark and style, were sold in an asset sale by Smithco to Bos-Hatten,

882-913: Is now being restored by the Railroad Heritage of Midwest America museum. Alco and MLW locomotives still work on many regional and tourist railroads across the United States and Canada, including the Delaware-Lackawanna Railroad in Scranton, Pennsylvania , the Catskill Mountain Railroad in Kingston ; the Livonia, Avon and Lakeville Railroad family of lines based in Lakeville, New York ,

945-619: Is now occupied by a large industrial park. Alco diversified into areas other than automobiles with greater success. During World War II , Alco built munitions for the war effort, in addition to locomotive production; this continued throughout the Korean War . After the Korean War, Alco began making oil production equipment and heat exchangers for nuclear plants. In 1955, the company was renamed Alco Products, Incorporated. By this stage, locomotive production only accounted for 20% of

1008-603: Is still manufactured by Fairbanks-Morse of Beloit, Wisconsin , a company which also manufactured diesel locomotives. Additionally, Alco diesel engines are used to power the NASA Crawler Transporter . Some Alcos survive on Australian networks, as well as in Bangladesh and Pakistan. Another fleet of Alco Bombardier locomotives run in rugged terrain on the Sri Lanka railway network. Argentina also has

1071-400: The 630 (the first AC/DC transmission), the 430 and the 636 , the first 3,600 horsepower (2.7 MW) locomotive, failed to keep the enterprise going. Third-place in the market proved to be an impossible position; ALCo products had neither the market position nor reputation for reliability of EMD's products, nor the financing muscle and customer support of GE. It could not earn enough profits. In

1134-560: The American Locomotive Company (ALCO Products) of Schenectady, New York, and awarded the contract in December 1954. The name "SM-1" stands for Stationary, Medium-size reactor, prototype #1. The pressurized-water reactor (PWR) design developed by the AEC was a heterogeneous, water-cooled and water-moderated, stainless steel system, using highly enriched (93%) uranium dioxide mixture as fuel. The term "package" in

1197-863: The Arcade & Attica Railroad in Arcade, New York. It returned to service in May 2009 after a six-year overhaul to bring it into compliance with the FRA's new steam locomotive regulations. Great Western 60 , a 2-8-0 built in Schenectady in 1937, currently operates in passenger service on the Black River & Western Railroad in Ringoes, NJ. Oregon Coast Scenic Railroad in Garibaldi, Oregon . This railroad owns

1260-666: The Four Aces to No. 2626 and ran it on the North Coast Limited , as well as its pool trains between Seattle, Washington , and Portland, Oregon , and excursions, through 1957. During World War II, Alco produced many 2-10-0 Decapods for the USSR . Many went undelivered, and ten of these were sold to Finland in 1947. One, Alco builder's No. 75214, is preserved at the Finnish Railway Museum . Though

1323-818: The Geographic Names Information System by the United States Geological Survey . Pohick Creek forms at the confluence of Rabbit Branch and Sideburn Branch in Burke, Virginia . Pohick Creek Creek then flows southeast, forming the border between Burke and West Springfield . After crossing the Fairfax County Parkway , it enters Newington and descends into a gorge where the Gerry Connolly Cross County Trail follows

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1386-759: The Hellenic Railways Organisation (OSE) in Greece. The oldest of them (class A.201, DL532B) were delivered to the former Hellenic State Railways (SEK) in 1962. In addition to a variety of standard gauge locomotives, the fleet includes 11 metre gauge Alco locomotives, mainly used for departmental trains in the Peloponnese network. The MX627 and MX636 locomotives have been extensively rebuilt at Piraeus Central Factory of OSE. The remaining Alco locomotives are also being rebuilt, starting with models DL532B and DL537. The ALCO 251 diesel engine

1449-534: The McCloud Railway 25 . One of only 4 prairie type (2-6-2) locomotives ever built by ALCO. This locomotive is operational, and is used in daily service six months of the year and weekend service an additional four months of the year. This locomotive appeared in the film " Stand by Me ". While regular production of steam locomotives by Alco ended in the 1950s, Alco-built steam engines have been preserved in locations across North America. They can be found on

1512-1039: The Nevada Northern Railway in Ely, Nevada; at the Orange Empire Railway Museum in California, on the Lake Whatcom Railway in Washington and on the Durango and Silverton Narrow Gauge Railroad in Colorado. Pohick Creek Pohick Creek is a 14.0-mile-long (22.5 km) tributary stream of the Potomac River in Fairfax County in the U.S. state of Virginia . It takes its name from

1575-792: The New York Central Railroad , the Union Pacific Railroad and the Milwaukee Road . Among Alco's better-known steam locomotives were the 4-6-4 Hudson , 4-8-2 Mohawk , and the 4-8-4 Niagara built for the New York Central; and the 4-8-4 FEF and the 4-6-6-4 Challenger built for the Union Pacific. Alco built many of the biggest locomotives ever constructed, including Union Pacific's Big Boy ( 4-8-8-4 ). Alco also built

1638-520: The Pohick Native American tribe once prevalent in the area. Pohick Creek forms in the vicinity of Burke and flows southeast past the western edge of Fort Belvoir to empty into the tidal Pohick Bay , which itself empties, along with Accotink Bay , into Gunston Cove , an embayment of the tidal Potomac River. Pohick Creek is a popular stream for whitewater kayaking , rafting, and paddling, providing Class II and III rapids along

1701-468: The RS-1 , the first road–switcher locomotive. The versatile road–switcher design gained favor for short-haul applications, which would provide ALCo a secure market niche through the 1940s. The entry of the United States into World War II froze ALCo's development of road diesel locomotives. During that time, ALCo was allocated the construction of diesel switching locomotives, their new road–switcher locomotives,

1764-579: The Schenectady Locomotive Engine Manufactory of Schenectady, New York : The consolidation of the seven manufacturers was the brainchild of financier Pliny Fisk Sr. of the brokerage house Harvey Fisk & Sons. The consolidated ALCO was intended to compete with Baldwin Locomotive Co. which controlled two-fifths of the industry. The new company was headquartered in Schenectady. Samuel R. Callaway left

1827-556: The Studebaker corporation in 1967 to form Studebaker-Worthington , Alco remaining a wholly owned subsidiary. Former divisions of Alco became semi-independent subsidiaries in 1968. After the termination of locomotive production in 1969, the locomotive designs (but not the engine development rights) were transferred to the Montreal Locomotive Works , which continued their manufacture. The diesel engine business

1890-431: The 1930s and its established service infrastructure. ALCo would prove unable to overcome that lead. In 1946, ALCo controlled 26% of the diesel locomotive market. The ubiquitous S series ( 660 and 1000 horsepower) switchers and RS series ( 1000 and 1500 horsepower) road switchers represented ALCo well during the late 1940s. Much of its success in this period can be tied to its pioneering RS locomotives, representing

1953-627: The Army's nuclear reactor training facility alongside Gunston Cove explains why the floating MH-1A came to be tested at Fort Belvoir in April 1966. The successful operation of the SM-1 was promoted by the Department of Defense as a demonstration of President Eisenhower's " Atoms for Peace " program. Shortly after it was placed in operation in 1957, the Pentagon invited a group of foreign defense military attaches stationed in Washington D.C. to tour

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2016-525: The Berliet license was abandoned, and the company began to produce its own designs instead. An Alco racing car won the Vanderbilt Cup in both 1909 and 1910 and competed in the first Indianapolis 500 in 1911, driven on all three occasions by Harry Grant . ALCO's automotive venture was unprofitable, and they abandoned automobile manufacture in 1913. The Alco automobile story is notable chiefly as

2079-550: The Delaware & Hudson's 1924 addition of SKF roller bearings to the drivers and main and side rods of their own 4-6-2 locomotives). This was Timken 1111 , a 4-8-4 commissioned in 1930 by Timken Roller Bearing Company and ultimately used for 100,000 miles (160,000 km) on 15 major United States railroads before it was purchased in 1933 by the Northern Pacific Railway . The Northern Pacific renumbered

2142-570: The Electro-Motive Division of General Motors. Joseph Burroughs Ennis (1879–1955) was a senior vice president between 1917 and 1947 and was responsible for the design of many of the company's locomotives. The company diversified into the automobile business in 1906, producing French Berliet designs under license. Production was located at Alco's Rhode Island Locomotive Works in Providence, Rhode Island . Two years later,

2205-512: The Fort Belvoir facility. A 30-second news video of that 1957 visit shows military officers from Cuba, Costa Rica and Portugal, amongst the group invited inside the reactor control room. Plans to decommission the SM-1 reactor were announced in June 1972, and the reactor was shut down for the last time on 16 March 1973: four members of the first group of operators trained in 1957 participated in

2268-690: The Lake Whatcom Railway in Wickersham, Washington and the Middletown & Hummelstown Railroad in Middletown, Pennsylvania . The latter owns one of the last true ALCO switchers ever built, #1016. The 1016 is a T-6 type switcher engine. This and ALCO sister 151 (ex Western Maryland Railway S-6 ) provide daily service in Middletown. Two original Alco RS-2's that were delivered to the Nevada Northern Railway are still in operation. ALCO-Cooke 2-8-0 #18, built in 1920, survives in passenger service on

2331-519: The No. 2 position from ALCo, and eventually eclipsed EMD in overall production. Despite continual innovation in its designs (the first AC/DC transmission among others), ALCo gradually succumbed to its competition, in which its former ally, General Electric, was an important element. India during 1960s began gradual withdrawal of Steam locomotives from Indian Railways so the Diesel electric locomotive WDM series

2394-569: The SM-1 and Fort Belvoir hold the distinction of delivering the first nuclear generated electricity for public use in America, coming online several months before the (much larger, $ 55 million) Shippingport Reactor (in December 1957.) According to a June 1957 report in the industry magazine POWER , "Normal operation (of the SM-1) will need a total of 29 men. Operators will be high-school graduates with 1-year training, led by engineers." The location of

2457-765: The U-235 was enriched to 93 percent. The spent fuel from the first core was sent to the Idaho National Engineering and Environmental Laboratory (the INEEL, originally known as the Idaho National Reactor Testing Station) and the fuel from the SM-1's second and third cores was sent to the Savannah River Site. In April 1975, the reactor building was reopened to the public as a museum until the mid-1980s when it

2520-480: The building to house the reactor began on 5 October 1955 in the southeast "corner" of Fort Belvoir , Virginia, alongside Gunston Cove, off the Potomac River . According to a news note in the December 1955 Bulletin of the Atomic Scientists , "Construction of the 'package' or portable reactor has been started at Fort Belvoir, VA. Alco Products is the contractor for the Defense Department and the AEC. The reactor will generate about 2,000 kilowatts of electricity, enough for

2583-417: The business. The first nuclear power plant connected to the electrical grid, the SM-1, was built for the Army Nuclear Power Program at Fort Belvoir in Virginia in 1957. Another complete plant, the PM-2A, was shipped to and constructed at Camp Century in Greenland. The Camp Century plant was filmed by the U.S. Army. The company was purchased in 1964 by the Worthington Corporation , which merged with

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2646-450: The company changed its name to Alco Products, Incorporated. In 1964, the Worthington Corporation acquired the company. The company went out of business in 1969, although Montreal Locomotive Works continued to manufacture locomotives based on Alco designs. The ALCO name is currently being used by Fairbanks Morse Engine for their FM|ALCO line. The company was created in 1901 from the merger of seven smaller locomotive manufacturers with

2709-428: The country's second-largest locomotive manufacturer behind Baldwin Locomotive Works . Alco produced more than 75,000 locomotives, including more steam locomotives than any U.S. company except Baldwin Locomotive Works . (Alco outlasted Baldwin, in part by shifting more readily to diesel.) Railroads that favored Alco products included the Delaware & Hudson Railway , the New York, New Haven & Hartford Railroad ,

2772-400: The creek, crossing it eight times. It then passes into Lorton and crosses Interstate 95 , the CSX RF&P Subdivision , and U.S. Route 1. It then meets the Potomac River in Pohick Bay about 0.5 miles north of Springfield Farms. Pohick Creek drains 32.21 square miles (83.4 km ) of area, receives about 43.5 in/year of precipitation, has a topographic wetness index of 409.88 and

2835-600: The diesel power on the Indian Railways . Many thousands of locomotives with Alco lineage are in regular mainline use in India. Most of these locomotives were built by the Diesel Locomotive Works (DLW) at Varanasi, India . The Diesel Loco Modernisation Works (DMW) at Patiala, India, do mid-life rebuilding and upgrading the power of these locomotives, typically the 2,600 horsepower (1.94 MW) WDM-2 to 3,100 horsepower (2.31 MW). A number of Alco and MLW diesel–electric locomotives (models DL500C, DL532B, DL537, DL543, MX627 and MX636) are in daily use hauling freight trains of

2898-434: The dual-service 4-8-4 steam locomotive had shown great promise, 1948 was the last year that steam locomotives were manufactured in Schenectady. These were the seven A-2a class 9400-series Pittsburgh & Lake Erie Railroad 2-8-4 "Berkshires." Their tenders had to be subcontracted to Lima Locomotive Works , as Alco's tender shop had been closed. The building was converted to make diesel locomotives to compete with those of

2961-483: The engines 6&12R251 into naval gensets and also with the 6R251 in FAUR factory were made locomotives known as LDH 1500 CP. (CFR Classes 67/68/70/71 and CFR Class 61). They were also exported in Iran and Greece ( OSE ) Several Alco-built mainline engines are still operational, such as Union Pacific 844 , Union Pacific Big Boy 4014 , Milwaukee Road 261 , Soo Line 1003 , and Florida East Coast 148 . UP Challenger 3985 ran in UP excursion service until 2010, but

3024-420: The fastest American locomotives, the Class A Atlantic and Class F7 Hudson streamliners for the Milwaukee Road 's Twin Cities Hiawatha run. Among the ambitious state-of-the-art designs of the late steam era, Alco's Challengers, Big Boys, and high-speed streamliners stood out for their success in operations. Alco built the second production steam locomotive in North America to use roller bearings (after

3087-406: The first modern road–switcher, a configuration which has long-outlasted ALCo. The success of their switcher and road–switcher locomotives was not matched with the PA and FA -type mainline units, however. The 244 engine, developed in a crash program to compete with EMD's powerful 567 engine, proved unreliable and sales of ALCo's mainline units soon went into decline. In 1948, ALCo-GE produced

3150-411: The late 1960s, Alco gradually ceased locomotive production, shipping its last two locomotives, a pair of T-6 switchers to the Newburgh & South Shore Railroad (#1016 and #1017) in January 1969. ALCo closed its Schenectady locomotive plant later that year, and sold its designs to the Montreal Locomotive Works in Canada. The vast ALCo Schenectady plant was completely demolished by 2019, and its site

3213-415: The market for locomotives was declining after the height of the dieselization era and EMD's GP9 was on the market as a proven competitor backed by a service infrastructure that ALCo, since the dissolution of the GE partnership, lacked. Sales were disappointing and ALCo's profitability suffered. GE entered the export road-diesel locomotive market in 1956, then the domestic market in 1960, and quickly took

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3276-409: The name Army Package Power Reactor refers to the program objective of designing a compact nuclear power plant whose components could be packed for delivery to remote facilities aboard large military transport aircraft. The SM-1 served as the prototype for the SM-1A power plant, which was constructed at Fort Greely, Alaska , between 1960 and 1962. The reactor core itself was compact, about the size of

3339-400: The nuclear power plant on the US Navy's (newly launched) nuclear submarine Nautilus . He also said the reactor could be housed in a building 29 feet (8.8 m) wide, 42 feet (13 m) high and 80 feet (24 m) long. The Army was sending out a request for proposals, that day, to "33 qualified bidders", and companies were being asked to come up with a "competitive lump-sum bid", rather than

3402-413: The pace of ALCo's efforts to develop a replacement for the troubled 244 engine, dissolved their partnership with ALCo and took over the gas turbine–electric venture that had started series production the previous year. In 1956, ALCo made long-overdue changes, modernizing its production process and introducing road locomotives with its new 251 engine. However, the benefits to ALCo were negated by bad timing;

3465-447: The presidency of the New York Central Railroad to become president of Alco. When Callaway died on June 1, 1904, Albert J. Pitkin succeeded him as president of Alco. In 1904, the American Locomotive Company acquired control of the Locomotive and Machine Company of Montreal , Quebec, Canada; this company was eventually renamed the Montreal Locomotive Works . In 1905, Alco purchased Rogers Locomotive Works of Paterson, New Jersey ,

3528-418: The shutdown ceremony. According to a 1998 US Army report on the Army Reactor Program, during its 16 years of operations the facility trained some 800 nuclear operations specialists. During its operational life, the SM-1 reactor had its core replaced twice. According to a January 2001 report compiled by the Department of Energy, the total amount of uranium-235 supplied for the SM-1's three cores was 72.7 kilograms:

3591-486: Was again closed to the public. American Locomotive Company The American Locomotive Company (often shortened to ALCO , ALCo or Alco ) was an American manufacturer that operated from 1901 to 1969, initially specializing in the production of locomotives but later diversifying and fabricating at various times diesel generators, automobiles, steel, tanks, munitions , oil-production equipment, as well as heat exchangers for nuclear power plants . The company

3654-488: Was developed by Banaras Locomotive Works with help of American Locomotive Company (ALCO) for Indian Railways. In 1962 Alco locomotives entered in service and since then Thousands of Alco class Locomotive WDM-2 , WDM-3A , WDM-3D would be manufactured and rebuilt which would make most successful locomotives of Indian Railways serving both passenger and freight trains and still retain operational status for Indian railways today A new line of Century locomotives including

3717-441: Was formed by the merger of seven locomotive manufacturers and Schenectady Locomotive Engine Manufactory of Schenectady, New York . A subsidiary, American Locomotive Automobile Company, designed and manufactured automobiles under the Alco brand from 1905 to 1913. ALCO also produced nuclear reactors from 1954 to 1962. After World War II , Alco closed all of its manufacturing plants except those in Schenectady and Montreal. In 1955,

3780-729: Was largely overseen by Perry T. Egbert , vice president in charge of diesel locomotive sales and later president of the company. In the early to mid-1930s, ALCo was the pre-eminent builder of diesel–electric switch engines in the United States. It was slower than its competition to develop reliable diesel power for full-size mainline trains, though it did provided motive power for the Gulf, Mobile and Northern Railroad 's Rebel streamliners in 1935. In 1939, ALCo started producing passenger diesel locomotives to compete with General Motors ' Electro-Motive Corporation . The following year, ALCo teamed up with General Electric ( Alco-GE ) for much-needed support in competing with EMC. In 1941, ALCo introduced

3843-411: Was selected by the United States Army for a vital task: rejuvenating the Trans-Iranian Railway and extending it to the Soviet Union. This gave the U.S. ally a new supply line at a time when the German air force and navy had reduced Allied shipments to the Soviet port of Murmansk . The U.S. Army chose as locomotives the RSD-1 , a six-axle, six- traction motor variant of the light ALCo RS-1. Not only

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3906-432: Was sold to White Motor Corporation in 1970, which developed White Industrial Power . In 1977 White Industrial Power was sold to the British General Electric Company (GEC) which renamed the unit Alco Power. The business was subsequently sold to the Fairbanks-Morse corporation, which continues to manufacture Alco-designed engines in addition to their own design. The heat exchanger business continued as Alco Products for

3969-440: Was the company prevented from selling these locomotives to mainline U.S. railroads, but the 13 RS-1s that had already been built were commandeered for Iranian duty and converted to RSD-1s. The postwar era saw ALCo's steam products fall out of favor while it struggled to develop mainline diesel locomotives competitive with EMD's E and F series road locomotives, which were well-positioned from GM-EMC's large development efforts of

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