Electro Motive Division Builder List

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Part I - EMD builder's list 1253-2999 (start of EMD production to 1946)
 

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Seaboard Coast Line Diesel Locomotive Roster

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Part 1. Seaboard Coast Line - Merger Day to 1972 . This .pdf covers the initial merger in 1967 to the purging of F-units to 1972 Part 2. Seaboard Coast Line - 1973 to 1976 . This .pdf covers the delivery of U18B's and GP38-2's in 1973 until the transfer of GP30, RS11, C420, C430, C628 and C630 units to the Louisville & Nashville in 1976. Part 3. Seaboard Coast Line - 1977 . This .pdf covers transfer of SD35 and SDP35's to Louisville & Nashville, SD45's to Clinchfield, and the Clinchfield U36C's to SCL. Part 4. Seaboard Coast Line - 1978-1981 . This .pdf covers the last orders for new power, Alco and Baldwin switchers purging, and the Uceta GP16 program. Part 5. Seaboard Coast Line - 1982 . This .pdf covers the last year of SCL operation before being merged into Seaboard System, and includes the renumbering key. This module is not yet complete .
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Phelps Dodge Corporation Diesel Locomotive Roster

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  Phelps Dodge Corporation was one of the largest copper producers in the United States, with operations in Ajo, Douglas, Bisbee, and Morenci, Arizona, and Hidalgo, New Mexico.  The company had extensive rail operations in the open-pit mines at the New Cornelia Branch, Morenci Mines, and Lavender Pit. It operated two fairly long rail lines, the Tucson, Cornelia & Gila Bend between Ajo and Gila Bend, Arizona, and later, from Separ to Hidalgo, New Mexico. The roster is very complex. Transfers in the early years were frequent. David F. Myrick took six volumes to document the railroads of Arizona and died before completing the work. P. Allen Copeland completed a masterful set of Arizona shortline and industrial rosters for volume three, and this work updates, corrects, and clarifies the multiple rosters for Phelps Dodge. Here's a link to the completed work, revised to March 13, 2022 at 6:40 a.m. MST
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Alco Diesel Locomotive Builders List

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  Links PDF of the American Locomotive Company builder's list (includes Alco Products, Inc.). Description This is a 246 page builder list with a complete bibliography.  Bibliography Alco-GE Locomotive List. Alco. Cupper, R. Dan, David R. Sweetland, and Paul K. Withers. Alco's HH Series: American Locomotive Company's Pioneering Diesel Switcher . Halifax, Pennsylvania: Withers Publishing, 2006. Kirkland, John F. The Diesel Builders Vol. 2: American Locomotive Company and Montreal Locomotive Works . Special 110. Glendale, California: Interurban Press, 1989. ———— .   Dawn of the Diesel Age: The History of the Diesel Locomotive in America. Special 110. Glendale, California: Interurban Press, 1983. Lehmuth, R. H. American Locomotive Company: Complete Works . 2 vol. 1998. Rutherford, R. Craig. Alco's FA: Running in the Shadow, and In-Depth Look at the Alco-GE/MLW FA Series . La Mirada, California: Four Ways West Publications, 2005. Steinbrenner, Richard T. The American Locomo...
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Central of Georgia Diesel Locomotive Roster

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Links PDF of the Central of Georgia Roster . Description This is a nine-page detailed roster with a full bibliography. This is the final completed version of this project. The roster began with compiling a roster distilled from Diesels of the Southern Railway 1939-1982 by Paul K. Withers, Warren L. Calloway and J. Harlen Wilson. This compiled roster was compared to the Alco , Baldwin , and  Fairbanks-Morse  builder's lists found on this blog and the primary source EMD Locomotive Reference Data . Those provided accurate builder's dates (actually the shipping dates that all builders use as the builder date) and order numbers. Locomotive classes were derived from Central of Georgia locomotive diagram books of various dates. Bibliography EMD Locomotive Reference Data - Locomotive Data - Locomotive Units Built at Electro-Motive Division (Including Domestic, Export, and Some Rebuild Models. La Grange, Illinois: EMD, 1990. Withers, Paul K., Warren L Calloway, and J. Harlen Wilson...
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Seaboard System Locomotive Roster

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Here are links to an ongoing work in progress. This is based on the condensed rosters issued by the railroad on July 1, 1983, right after the formation of Seaboard System on January 1, 1983, and another issued on August 1, 1984, which covers several classes that were renumbered. It will also cover the joint Seaboard System/Chessie System renumbering covered in the condensed roster issued November 1, 1986, just before the formation of CSX. Part 1. Seaboard System Locomotive Roster - July 1, 1983 . Link to pdf Part 2. Seaboard System Locomotive Roster - August 1, 1984. Link to pdf Seaboard System was formed when Seaboard Coast Line Industries, the parent company of Seaboard Coast Line Railroad , absorbed the Louisville & Nashville . SCL owned 70 per cent of the outstanding shares of the L&N at the time of the merger.  Seaboard System also controlled the Georgia Group, which consisted of the Georgia Railroad, the Atlanta & West Point , and the Western Railway of Alabama , ...
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New York, New Haven & Hartford Diesel Locomotive Roster

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Links PDF of the  N ew Haven roster . Description This is a 18-page detailed roster with a full bibliography. This roster was compiled from Tim Nelligan's two-page roster, with additions from New Haven Power by J. W. Swanberg. This compiled roster was compared to the  Alco , Lima, and  Fairbanks-Morse  builder's lists found on this blog and the primary source  EMD Locomotive Reference Data . Those provided accurate builder's dates (actually the shipping dates that all builders use as the builder date) and order numbers. Bibliography Garver, Craig H. "American Locomotive Company builder list."  Digital Rail Artist (blog). Accessed April 7, 2024.  https://digitalrailartist.blogspot.com/2023/09/alco-diesel-locomotive-builders-list.html . ————. "Fairbanks-Morse builder list." Digital Rail Artist (blog). Accessed April 7, 2024.  https://digitalrailartist.blogspot.com/2023/12/fairbanks-morse-builder-list.html EMD Locomotive Reference Data - Locomoti...
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EMD GP20 Phase Guide and Builder's List

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  EMD's GP20 was cutting-edge technology in 1959 when the first unit was sold to the Western Pacific.  The builder was loathe to risk the sacrifice of its rock-solid engineering reputation on the altar of unproven technology.  Railroads, however, were having none of it. The horsepower race was well underway. Wealthy customers were already blazing new ground, EMD in tow or not. Union Pacific was happily buying General Electric gas turbines that dwarfed the power of the GP9/GP18. The railroad was also adding turbochargers to their existing GP9 fleet. Southern Pacific and the Denver & Rio Grande Western were importing complex and exotic diesel hydraulics from Germany that had unheard of adhesion and horsepower.   If that wasn't bad enough, General Electric was ready to introduce the 2500 horsepower U25B that had been long under development. Reluctantly, then, EMD introduced the SD24 and the GP20, unfortunately just as a severe recession was getting started....
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EMD SW7 Phase Guide and Builder's List

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  EMD replaced the 1,000 horsepower NW2 with the 1,200 horsepower SW7 in October, 1949. The SW7 continued to be built until it too was replaced by the SW9 in November, 1950. There was some overlap in production, until January, 1951. This was a popular locomotive, and EMD could not keep up with demand. Southern Pacific wanted to place significant orders but had to settle for just four units for the Cotton Belt because of long lead times. Here's the link to the .pdf
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EMD SW600 Phase Guide and Builder List

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 EMD's SW600 was the six-hundred horsepower successor to the SW1. Three new models were introduced in 1954 - the SW600, SW900, and SW1200. EMD built 1,056 of their 1200-horsepower SW1200 model. The SW900, at 900 horsepower, sold reasonably well at 372. The customer base for that model was industry and a few Class I roads with light-duty branch line applications. But the little SW600? Just 15 units for 13 different customers with no repeat orders. Six hundred horsepower units were a niche market by this time. Long gone were the robust sales of the SW1. Customers were few, mostly oil refiners, chemical plants, coal-fired electrical power plants, and rarely, a steel producer.  The only Class I customer was Chicago & North Western, buying just two units. By the time the 645-powered switchers were introduced, EMD could no longer justify including a six-hundred horsepower model because the margins were too low. Here's a link to the .pdf.
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EMD NW2 Phase Guide and Builder List

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  Atlantic Coast Line NW2 605, location, date and photographer unknown. Scanned from a 2 1/4 x 3 1/4 positive owned by Digital Rail Artist. This is a Phase 1a unit built in May, 1942. EMD sold 1,145 of their 1,000 horsepower switchers, built between February, 1939 and December, 1949, when it was replaced by the 1,200 horsepower SW7 . This is a 40-page detailed look at the phases and builder list. Revised to March 20, 2022 at 8:41 a.m., Mountain Standard Time.
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