Alco "RS3" Locomotives: Cab, Specs, Phases, Roster
Last revised: December 27, 2024
By: Adam Burns
The RS3 was Alco's pinnacle in its early road switcher
designs. While the American Locomotive Company would have some
success in later Road Switcher (RS) series models,
like the RS11 and RSD5, nothing would compare to the amazing success
of the RS3.
When it was released Alco had already cataloged two previous versions, the RS1 and RS2, both of which had seen modest success as the first true road-switchers ever produced.
Overview
Unfortunately, overall the Schenectady manufacturer had considerable trouble seriously competing with Electro-Motive whose cab designs were far outpacing anything in its catalog.
In any event, the RS3 would go on to be the most commonly seen Alco model across the country and remained in the company's catalog for more than six years. Today, numerous examples of this locomotive remain preserved, several of which are still operational.
Photos
Lehigh Valley RS3 #211 at Bethlehem, Pennsylvania on April 28, 1975. One of the unique "Hammerhead" variants, this unit began its career as Pennsylvania #8445, featuring a high short hood which included a steam generator and dynamic brakes. In 1966 it was renumbered 5569. Following Penn Central's formation, the locomotive was swapped with Lehigh Valley RS2 #211, which was then traded in to General Electric in 1970. The "Hammerhead" unit was then painted in LV colors and numbered 211. It managed to survive scrapping under Conrail - albeit rebuilt with an EMD power plant - and was eventually acquired by the Rochester & Genesee Valley Railroad Museum where it resides today fully restored in LV colors. Warren Calloway collection.The RS3 entered production in 1950 replacing its predecessor the RS2. The new model produced slightly more horsepower than the earlier design at 1,600 hp using Alco's commonly problematic 12-cylinder, model 244 prime mover.
From a visual standpoint the RS3 looked almost identical to the RS2. Both had much improved styling over the RS1 albeit it was quite subtle with heavy beveling to corners and edges giving the unit a much more streamlined appearance (because of its good looks some railroads elected to employ theirs in passenger/commuter service).
Instantly beloved by railroads for its versatility and
reliability, RS3s began rolling out of Alco's Schenectady shops in the masses.
Missouri Pacific RS3 #982 and GP7 #236 are tied down in Lee's Summit, Missouri during September of 1964. American-Rails.com collection.Perhaps more than any other locomotive the RS3 defined Alco as a locomotive manufacturer offering eye-appealing, classy designs with their trademark belching black smoke.
While the RS1 and RS2 had sold relatively well perhaps it was the RS3's extra 100 horsepower over its predecessor that really appealed to railroads.
While the model 244 proved generally reliable and rugged in its smaller switcher and light road switcher designs (like the RS3) the prime mover simply not been properly researched and developed for heavy-haul use.
As such, the FA and PA models in production at
the time experienced significant mechanical issues. This allowed Electro-Motive to gain a notable edge and these problems ultimately resulted in Alco's exit from the market.
Erie Lackawanna RS3 #1044, a former Lackawanna unit (#906), is seen here in the early 1960s. American-Rails.com collection.Interestingly, a year prior to the RS3's release EMD was finally cataloging a competitor, the GP7. Unfortunately for EMD their initial design, the BL2, proved unsuccessful although the industry leader quickly learned from their mistake.
The model used the same road switcher design setup pioneered by Alco in its 1941 RS1 with a long trailing hood, offset cab, and short front hood. Both as the time as well as from a historical stance the RS3 has been deemed an incredible success for Alco.
However, had the builder acquired the reputation of EMD it may have sold even more. The GP7 went on to sell more than 2,700 examples before its production run ended in 1954 and its successor, the GP9, was even more successful.
Pennsylvania RS3 #5456 between assignments in Cincinnati, Ohio during the summer of 1967. Fred Byerly photo. American-Rails.com collection.When the RS3 was produced Alco was still working in conjunction with General Electric and Westinghouse to supply internal components for its locomotives.
As such the model contained air brakes and compressors from the latter while the former provided its model 752 traction motors that gave the RS3 around 60,000 pounds of initial tractive effort (more than 2,000 more than the RS2).
The model weighed around 114.5 tons, was 55 feet/5 inches in length and equipped with dynamic braking. This latter ability allowed railroads to use the RS3 in heavy-haul service, such as moving coal drags up steep grades and many did not shy away from doing so; for instance the Reading, Lehigh Valley, Louisville & Nashville, Southern and others beat theirs to pieces in this capacity.
Success
It was the model's ability to take this abuse regularly and continue operating on a daily basis that so endeared them to railroads and resulted in many returning to Alco for more.
It's a shame that the company could not have produced other locomotives that emulated the success of the RS3. By the time production ended in 1956 Alco would sell more than 1,300 and even today you can still find these venerable locomotives operating on short lines and tourist trains all across the country.
Most interesting is that when Alco introduced its RS line in 1941 and found success with a locomotive that could be used in multiple roles EMD was convinced to begin manufacturing its own line of road switcher that would eventually help put Alco out of business one day.
Rock Island RS3 #475 (built as #463) is seen here following its rebuild after an accident, circa 1960. George Hockaday photo.Data Sheet and Specifications
| Alco Class | 404-DL-247 |
| Entered Production | 5/16/1950 (Great Northern #198) |
| Years Produced | 5/16/1950-8/1956 |
| Model Specification | E1662/A/B: MLW = ME1600R |
| Engine | 244, V-12 |
| Horsepower | 1,600 |
| Carbody Styling | Alco |
| Length (Between Coupler Pulling Faces) | 56' 6" |
| Weight | 247,000 Lbs. (Optional ballasting to 250,000 Lbs.) |
| Dynamic Brakes | Optional |
| Trucks | B-B |
| Truck Type | Swing Bolster, Drop-Side Equalizer (AAR Type-B) |
| Truck Wheelbase | 9' 4" |
| Wheel Size | 40" |
| Traction Motors | GE 752 (4) |
| Traction Generator | GT581 |
| Steam Generator | Optional |
| Gear Ratio | 74:18 |
| Tractive Effort Rating | 42,500 Lbs. at 11 MPH |
| Top Speed | 65 MPH |
Production Rosters
Alco
Total Built = 1,272
| Owner | Road Number(s) | Serial Number(s) | Date Built |
|---|---|---|---|
| Alco (Demonstrator) | 1601 (became Rutland #200) | 78252 | 11/1950 |
| Alco (Demonstrator) | 1607 (became Interstate Railroad #37) | 80159 | 8/1952 |
| Alton & Southern | 43, 44 | 78366, 80504 | 11/1950, 6/1953 |
| Alton & Southern | 45 | 81849 | 2/1956 |
| American Smelting & Refining (ASARCO) | 2, 3 | 78371, 78372 | 11/1950 |
| Atlantic & Danville | 107 | 78902 | 6/1951 |
| Birmingham Southern | 151 | 78251 | 9/1950 |
| Birmingham Southern | 152 | 79096 | 10/1951 |
| Blue Ridge Railway | 1, 2 | 78324, 78325 | 10/1950 |
| Boston & Maine | 1505-1509 | 80732-80736 | 4/1954 - 5/1954 |
| Boston & Maine | 1510-1517 | 80749-80756 | 10/1954 |
| Boston & Maine | 1518, 1519 | 81162, 81163 | 4/1955 |
| Boston & Maine | 1535-1545 | 79602-79612 | 1/1952 |
| Carolina & Northwestern Railway | 5, 10 | 78326, 80514 | 10/1950, 6/1953 |
| Central of Georgia Railway | 108-110 | 78246-78248 | 9/1950 |
| Central of Georgia Railway | 111-119 | 78753-78761 | 5/1951 |
| Central of Georgia Railway | 133-147 | 80140-80154 | 7/1952 |
| Central of Georgia Railway | 148 | 80267 | 4/1953 |
| Central of Georgia Railway | 149, 150 | 80269, 80270 | 4/1953 |
| Central of Georgia Railway | 151-154 | 80248-80251 | 4/1953 |
| Central of Georgia Railway | 155-159 | 80262-80266 | 4/1953 |
| Central Railroad of New Jersey | 1540-1547 | 78058-78065 | 6/1950 |
| Central Railroad of New Jersey | 1548, 1549 | 80234, 80243 | 3/1953 |
| Central Railroad of New Jersey | 1550, 1551 | 80247, 80255 | 3/1953, 4/1953 |
| Central Railroad of New Jersey | 1552, 1553 | 80261, 80268 | 4/1953 |
| Central Railroad of New Jersey | 1554, 1555 | 80271, 80276 | 4/1953 |
| Central Railroad of New Jersey | 1700, 1701 | 80236, 80237 | 3/1953 |
| Central Railroad of New Jersey | 1702, 1703 | 80232, 80233 | 3/1953 |
| Central Railroad of New Jersey | 1704 | 80235 | 3/1953 |
| Central Railroad of New Jersey | 1705-1709 | 80238-80242 | 3/1953 |
| Central Vermont | 1859, 1860 | 80747, 80748 | 9/1954 |
| Chesapeake & Ohio | 5600, 5601 | 81160, 81161 | 4/1955 |
| Chicago & North Western | 1551 | 78940 | 8/1951 |
| Chicago & North Western | 1552-1554 | 78942-78944 | 8/1951 |
| Chicago & North Western | 1555 | 79056 | 8/1951 |
| Chicago & North Western | 1613-1618 | 80131-80136 | 7/1952 |
| Chicago & North Western | 1621-1624 | 80515-80518 | 7/1953 |
| Milwaukee Road | 2475, 2476 | 80578, 80579 | 12/1953 |
| Milwaukee Road | 2477 | 80581 | 12/1953 |
| Milwaukee Road | 2478-2482 | 80650-80654 | 12/1953 |
| Milwaukee Road | 2483-2487 | 80738-80742 | 5/1954 |
| Milwaukee Road | 2488-2495 | 81703-81710 | 11/1955 |
| Rock Island | 455-467 | 78253-78265 | 9/1950 |
| Rock Island | 468, 469 | 78290, 78291 | 9/1950 |
| Rock Island | 470-472 | 79058-79060 | 8/1951 |
| Rock Island | 473, 474 | 79062, 79063 | 8/1951 |
| Rock Island | 485-499 | 79261-79275 | 10/1951 - 11/1951 |
| Chicago, St. Paul, Minneapolis & Omaha (C&NW) | 162-164 | 80137-80139 | 7/1952 |
| Chicago, St. Paul, Minneapolis & Omaha (C&NW) | 165-167 | 80519-80521 | 7/1953 |
| Cincinnati, New Orleans & Texas Pacific (Southern) | 6208-6222 | 79637-79651 | 3/1952 |
| Cincinnati, New Orleans & Texas Pacific (Southern) | 6223-6239 | 79680-79696 | 3/1952 |
| Danville & Western | 1, 2 | 78327, 78328 | 10/1950 |
| Delaware & Hudson | 4026-4032 | 78051-78057 | 6/1950 |
| Delaware & Hudson | 4033-4036 | 78356-78359 | 10/1950 |
| Delaware & Hudson | 4037-4045 | 78336-78344 | 10/1950 |
| Delaware & Hudson | 4046-4048 | 78353-78355 | 10/1950 |
| Delaware & Hudson | 4049 | 78886 | 6/1951 |
| Delaware & Hudson | 4052-4054 | 78887-78889 | 6/1951 |
| Delaware & Hudson | 4055-4067 | 79652-79664 | 2/1952 |
| Delaware & Hudson | 4068-4069 | 79665-79666 | 3/1952 |
| Delaware & Hudson | 4070-4094 | 80160-80184 | 8/1952 |
| Delaware & Hudson | 4095-4098 | 80185-80188 | 9/1952 |
| Delaware & Hudson | 4099-4117 | 80299-80317 | 9/1952 |
| Delaware & Hudson | 4118, 4119 | 80318, 80319 | 10/1952 |
| Delaware & Hudson | 4120-4129 | 80522-80531 | 8/1953 |
| Delaware, Lackawanna & Western | 901-904 | 78076-78079 | 8/1950 |
| Delaware, Lackawanna & Western | 905-910 | 78573-78578 | 4/1951 |
| Delaware, Lackawanna & Western | 911-918 | 79667-79674 | 3/1952 |
| Denver & Rio Grande Western | 5200-5204 | 78895-78899 | 6/1951 |
| Erie Railroad | 914, 915 | 78322, 78323 | 10/1950 |
| Erie Railroad | 916-923 | 78555-78562 | 4/1951 |
| Erie Railroad | 924-927 | 79629-79632 | 2/1952 |
| Erie Railroad | 928-933 | 80226-80231 | 3/1953 |
| Erie Railroad | 1005, 1006 | 77975, 77976 | 4/1950 |
| Erie Railroad | 1007-1016 | 78305-78314 | 9/1950 - 10/1950 |
| Erie Railroad | 1017, 1018 | 78320, 78321 | 10/1950 |
| Erie Railroad | 1019-1026 | 78547-78554 | 3/1951 |
| Erie Railroad | 1027, 1028 | 79359, 79360 | 11/1951 |
| Erie Railroad | 1029-1036 | 80116-80123 | 7/1952 |
| Erie Railroad | 1037, 1038 | 80224, 80225 | 10/1952 |
| Federal Barge Lines | 60, 61 | 80130, 81686 | 7/1952, 10/1955 |
| Ferrocarriles Nacionales de México (Mexico) | 6700-6703 | 80124-80127 | 7/1952 |
| Ferrocarriles Nacionales de México (Mexico) | 6704-6706 | 81894-81896 | 4/1956 |
| Grand Trunk Western | 1861, 1862 | 80745, 80746 | 9/1954 |
| Great Northern | 197-199 | 78043-78045 | 5/1950 |
| Great Northern | 220-224 | 78046-78050 | 5/1950 |
| Great Northern | 228-232 | 80497-80501 | 6/1953 |
| Green Bay & Western | 305, 306 | 78856, 78857 | 5/1951 |
| Green Bay & Western | 307, 308 | 81286, 81287 | 7/1955 |
| Gulf, Mobile & Ohio | 1515-1518 | 78072-78075 | 7/1950 |
| Gulf, Mobile & Ohio | 1519-1521 | 79249-79251 | 10/1951 |
| Gulf, Mobile & Ohio | 1522, 1523 | 80128, 80129 | 7/1952 |
| Interstate Railroad | 30-36 | 80559-80565 | 10/1953 |
| Interstate Railroad | 38, 39 | 81843, 81844 | 1/1956 |
| Kennecott Copper Corporation | 109 | 78426 | 12/1950 |
| Lake Superior & Ishpeming | 1604, 1605 | 78301, 78302 | 9/1950 |
| Lake Superior & Ishpeming | 1606, 1607 | 80478, 80479 | 5/1953 |
| Lake Superior & Ishpeming | 1608, 1609 | 80737, 81350 | 5/1954, 8/1955 |
| Lake Superior & Ishpeming | 1610 | 81365 | 9/1955 |
| Lehigh & Hudson River | 1-3 | 78069-78071 | 6/1950 |
| Lehigh & Hudson River | 4-9 | 78292-78297 | 9/1950 |
| Lehigh & Hudson River | 10, 11 | 78369, 78370 | 11/1950 |
| Lehigh & Hudson River | 12, 13 | 78926, 79244 | 7/1951, 10/1951 |
| Lehigh Valley | 215, 216 | 78367, 78368 | 11/1950 |
| Litchfield & Madison | 301, 302 | 79628, 80280 | 5/1952, 5/1953 |
| Litchfield & Madison | 303 | 81900 | 8/1956 |
| Long Island Rail Road | 1551-1560 | 81351-81360 | 8/1955 - 9/1955 |
| Louisville & Nashville | 100-108 | 79385-79393 | 11/1951 |
| Louisville & Nashville | 109 | 79394 | 12/1951 |
| Louisville & Nashville | 110-113 | 80320-80323 | 10/1952 |
| Louisville & Nashville | 114-117 | 80505-80508 | 6/1953 |
| Louisville & Nashville | 118-123 | 80661-80666 | 12/1953 |
| Louisville & Nashville | 124-149 | 80667-80692 | 1/1954 |
| Louisville & Nashville | 150, 151 | 80259, 80260 | 4/1953 |
| Louisville & Nashville | 152-154 | 80509-80511 | 6/1953 |
| Louisville & Nashville | 170-172 | 80252-80254 | 4/1953 |
| Louisville & Nashville | 173-175 | 80256-80258 | 4/1953 |
| Louisville & Nashville | 176 | 81695 | 11/1955 |
| Louisville & Nashville | 177-179 | 81697-81699 | 11/1955 |
| Louisville & Nashville | 214-217 | 81678-81681 | 10/1955 |
| Louisville & Nashville | 219-221 | 81683-81685 | 10/1955 |
| Louisville & Nashville | 222-229 | 81687-81694 | 10/1955 - 11/1955 |
| Louisville & Nashville | 230-243 | 80693-80706 | 1/1954 - 2/1954 |
| Louisville & Nashville | 244-252 | 81851-81859 | 3/1956 |
| Louisville & Nashville | 253-255 | 81891-81893 | 3/1956 |
| Macon, Dublin & Savannah | 1703, 1704 | 78360, 78361 | 10/1950 |
| Macon, Dublin & Savannah | 1705, 1706 | 79361, 81850 | 11/1951, 2/1956 |
| Maine Central | 556, 557 | 80566, 80567 | 11/1953 |
| Minneapolis, St. Paul & Sault Ste. Marie (Soo Line) | 352, 353 | 80978, 80979 | 5/1954 |
| Minnesota Transfer | 200, 201 | 79245, 79246 | 10/1951 |
| Missouri-Illinois Railway | 19, 20 | 81150-81153 | 3/1955 |
| Missouri-Illinois Railway | 62, 63 | 78545, 79252 | 1/1951, 10/1951 |
| Missouri-Illinois Railway | 64 | 79942 | 6/1952 |
| Missouri-Illinois Railway | 65, 66 | 80512, 80513 | 6/1953 |
| Missouri-Illinois Railway | 67, 68 | 80548, 80551 | 10/1953 |
| Missouri-Illinois Railway | 69, 70 | 80730, 80731 | 3/1954 |
| Missouri-Illinois Railway | 71-74 | 81150-81153 | 3/1955 |
| Missouri-Kansas-Texas (Katy) | 1551, 1552 | 78303, 78304 | 9/1950 |
| Missouri-Kansas-Texas (Katy) | 1553-1558 | 78454-78459 | 12/1950 |
| Missouri-Kansas-Texas (Katy) | 1559-1563 | 79091-79095 | 9/1951 |
| Missouri-Kansas-Texas (Katy) | 1701, 1702 | 78892, 78893 | 6/1951 |
| Missouri Pacific | 4501-4512 | 80758-80769 | 1-2/1955 |
| Missouri Pacific | 4513-4526 | 81136-81149 | 2/1955 |
| New Orleans & North Eastern (Southern) | 6875-6882 | 78329-78336 | 10/1950 |
| New York Central | 8223-8230 | 78080-78087 | 8/1950 |
| New York Central | 8231-8241 | 78595-78605 | 5/1951 |
| New York Central | 8242, 8243 | 78751, 78752 | 5/1951 |
| New York Central | 8244-8263 | 78860-78879 | 5/1951 - 7/1951 |
| New York Central | 8264, 8265 | 78900, 78901 | 6/1951 |
| New York Central | 8266-8280 | 78903-78917 | 5/1951 - 6/1951 |
| New York Central | 8281-8284 | 79240-79243 | 10/1951 |
| New York Central | 8285-8303 | 79097-79115 | 10/1951 |
| New York Central | 8304-8307 | 79236-79239 | 10/1951 |
| New York Central | 8308-8312 | 79675-79679 | 3/1952 |
| New York Central | 8313-8319 | 79852-79858 | 9/1952 |
| New York Central | 8320-8328 | 79879-79887 | 5/1952 |
| New York Central | 8329, 8330 | 79889, 79890 | 5/1952 |
| New York Central | 8331-8333 | 79892-79894 | 5/1952 |
| New York Central | 8334-8336 | 79896-79898 | 5/1952 |
| New York Central | 8337-8339 | 79900-79902 | 5/1952 |
| New York Central | 8340-8342 | 79904-79906 | 5/1952 |
| New York Central | 8343-8352 | 80535-80544 | 7/1953 - 10/1953 |
| New York, Chicago & St. Louis (Nickel Plate Road) | 535-557 | 80707-80729 | 3/1954 |
| New York, New Haven & Hartford | 517-536 | 78164-78183 | 8/1950 |
| New York, New Haven & Hartford | 537-544 | 79253-79260 | 10/1951 |
| New York, New Haven & Hartford | 545, 546 | 79357, 79358 | 11/1951 |
| New York, New Haven & Hartford | 547-561 | 79613-79627 | 1/1952 |
| Norfolk & Western | 300-303 | 81361-81364 | 9/1955 - 10/1955 |
| Norfolk & Western | 304-307 | 81845-81848 | 1/1956 - 2/1956 |
| Northern Pacific | 850-852 | 80244-80246 | 3/1953 |
| Northern Pacific | 853-856 | 80655-80658 | 12/1953 |
| Northern Pacific | 857-862 | 81154-81159 | 3/1955 - 4/1955 |
| Northern Pacific | 863 | 81164 | 4/1955 |
| Oliver Iron Mining Company | 1108-1110 | 78066-78068 | 6/1950 |
| Pennsylvania Railroad | 8435-8438 | 80572-80575 | 11/1953 |
| Pennsylvania Railroad | 8439-8442 | 80568-80571 | 11/1953 |
| Pennsylvania Railroad | 8443, 8444 | 80576, 80577 | 12/1953 |
| Pennsylvania Railroad | 8445 | 80580 | 12/1953 |
| Pennsylvania Railroad | 8453-8455 | 79928-79930 | 6/1952 |
| Pennsylvania Railroad | 8456, 8457 | 79907, 79908 | 6/1952 |
| Pennsylvania Railroad | 8458-8461 | 79910-79913 | 6/1952 |
| Pennsylvania Railroad | 8462-8464 | 79915-79917 | 6/1952 |
| Pennsylvania Railroad | 8465-8470 | 79931-79936 | 6/1952 |
| Pennsylvania Railroad | 8471, 8472 | 80114, 80115 | 7/1952 |
| Pennsylvania Railroad | 8473, 8474 | 79919, 79920 | 6/1952 |
| Pennsylvania Railroad | 8475-8479 | 79922-79926 | 6/1952 |
| Pennsylvania Railroad | 8480-8484 | 79937-79941 | 6/1952 |
| Pennsylvania Railroad | 8590-8593 | 81711-81714 | 12/1955 |
| Pennsylvania Railroad | 8594-8603 | 81795-81804 | 12/1955 |
| Pennsylvania Railroad | 8604, 8605 | 81840, 81841 | 12/1955 |
| Pennsylvania Railroad | 8817-8836 | 79365-79384 | 11/1951 |
| Pennsylvania Railroad | 8837-8856 | 79395-79414 | 12/1951 |
| Pennsylvania Railroad | 8902, 8903 | 78585, 78586 | 4/1951 |
| Pennsylvania Railroad | 8904, 8905 | 78579, 78587 | 4/1951 |
| Pennsylvania Railroad | 8906-8909 | 78580-78583 | 4/1951 - 5/1951 |
| Pennsylvania Railroad | 8910-8913 | 78588-78591 | 4/1951 |
| Pennsylvania Railroad | 8914 | 78584 | 5/1951 |
| Pennsylvania Railroad | 8915, 8916 | 78592, 78593 | 4/1951 |
| Piedmont & Northern Railway | 100, 101 | 78249, 78250 | 9/1950 |
| Piedmont & Northern Railway | 102-105 | 78762-78765 | 5/1951 |
| Piedmont & Northern Railway | 106 | 79065 | 8/1951 |
| Piedmont & Northern Railway | 107, 108 | 79067, 79068 | 8/1951 |
| Piedmont & Northern Railway | 109 | 79070 | 8/1951 |
| Pittsburgh & Lake Erie (NYC) | 8353-8355 | 80545-80547 | 10/1953 |
| Pittsburgh & Lake Erie (NYC) | 8356, 8357 | 80549, 80550 | 10/1953 |
| Reading Railroad | 444-450 | 80552-80558 | 10/1953 |
| Reading Railroad | 460-472 | 79866-79878 | 5/1952 |
| Reading Railroad | 473 | 79863 | 4/1952 |
| Reading Railroad | 474, 475 | 79864, 79865 | 5/1952 |
| Reading Railroad | 481-483 | 80532-80534 | 8/1953 |
| Reading Railroad | 484, 485 | 79943, 79944 | 6/1952 |
| Reading Railroad | 486-495 | 80104-80113 | 6/1952 - 7/1952 |
| Reading Railroad | 496-499 | 79859-79862 | 4/1952 |
| Reading Railroad | 500-509 | 78563-78572 | 4/1951 |
| Reading Railroad | 510 | 78918 | 7/1951 |
| Reading Railroad | 511-513 | 78920-78922 | 7/1951 |
| Reading Railroad | 514, 515 | 78924, 78925 | 7/1951 |
| Reading Railroad | 516, 517 | 78928, 78929 | 8/1951 |
| Reading Railroad | 518-520 | 78931-78933 | 8/1951 |
| Reading Railroad | 521-523 | 78935-78937 | 8/1951 |
| Reading Railroad | 524 | 78939 | 8/1951 |
| Rutland Railroad | 201 | 78594 | 4/1951 |
| Rutland Railroad | 202-204 | 78880-78882 | 6/1951 |
| Rutland Railroad | 205-208 | 80155-80158 | 8/1952 |
| St. Louis-Southwestern Railway (Cotton Belt) | 308-310 | 79849-79851 | 4/1952 |
| St. Louis-Southwestern Railway (Cotton Belt) | 311 (1st), 312 | 78858, 78859 | 5/1951 |
| St. Louis-Southwestern Railway (Cotton Belt) | 311 (2nd) | 80223 | 10/1952 |
| St. Louis-Southwestern Railway (Cotton Belt) | 313, 314 | 78890, 78891 | 6/1951 |
| St. Louis-Southwestern Railway (Cotton Belt) | 315-318 | 79415-79418 | 12/1951 |
| St. Louis-Southwestern Railway (Cotton Belt) | 356 | 79848 | 3/1952 |
| St. Louis-Southwestern Railway (Cotton Belt) | 357-360 | 80219-80222 | 10/1952 |
| St. Marys Railroad | 501, 502 | 78546, 81842 | 3/1951, 1/1956 |
| San Manuel Copper Mine | 1 | 80757 | 1/1955 |
| San Manuel Copper Mine | 2, 3 | 81289, 81288 | 3/1955 |
| Seaboard Air Line | 1629-1647 | 78431-78449 | 11/1950 |
| Seaboard Air Line | 1648-1656 | 78467-78475 | 11/1950 - 12/1950 |
| Seaboard Air Line | 1657-1664 | 78531-78538 | 12/1950-1/1951 |
| Seaboard Air Line | 1665-1672 | 79419-79426 | 12/1951 |
| Seaboard Air Line | 1673, 1674 | 79592, 79593 | 12/1951 |
| Seaboard Air Line | 1675-1679 | 80214-80218 | 10/1952 |
| Seaboard Air Line | 1680-1684 | 79825-79829 | 10/1952 |
| Southern Railway | 2025-2029 | 79697-79701 | 4/1952 |
| Southern Railway | 2030-2047 | 79830-79847 | 10/1952 |
| Southern Railway | 2048-2062 | 80480-80494 | 11/1953 |
| Southern Railway | 2131, 2132 | 79072, 79073 | 8/1951 |
| Southern Railway | 2133, 2134 | 79075, 79076 | 10/1951 |
| Southern Railway | 2135, 2136 | 79078, 79079 | 9/1951 |
| Southern Railway | 2137-2145 | 79081-79089 | 9/1951 |
| Spokane, Portland & Seattle | 65-68 | 78461-78464 | 12/1950 |
| Spokane, Portland & Seattle | 69, 70 | 79247, 79248 | 10/1951 |
| Spokane, Portland & Seattle | 71-78 | 79594-79601 | 1/1952 |
| Spokane, Portland & Seattle | 79, 80 | 80495, 80496 | 6/1953 |
| Spokane, Portland & Seattle | 81, 82 | 80502, 80503 | 6/1953 |
| Spokane, Portland & Seattle | 90-93 | 81366-81369 | 10/1955 |
| Spokane, Portland & Seattle | 94, 95 | 81676, 81677 | 10/1955 |
| Spokane, Portland & Seattle | 96-98 | 81700-81702 | 11/1955 |
| Tennessee Central | 251-254 | 78362-78365 | 10/1950 |
| Tennessee Central | 255-258 | 79633-79636 | 3/1952 |
| Tennessee Central | 259, 260 | 81898, 81899 | 4/1956 |
| Terminal Railroad Association of St. Louis | 1600-1603 | 78450-78453 | 12/1950 |
| Texas Pacific-Missouri Pacific Terminal Railroad | 24 | 81897 | 4/1956 |
| Toledo, Peoria & Western | 207 | 78460 | 12/1950 |
| Western Maryland | 185 | 80275 | 4/1953 |
| Western Maryland | 186-188 | 80281-80283 | 4/1953 |
| Western Maryland | 189-194 | 80472-80477 | 11/1953 |
| Western Maryland | 195, 196 | 80659, 80660 | 12/1953 |
| Western Maryland | 197, 198 | 80743, 80744 | 9/1954 |
| Yadkin Railroad | 9 | 79090 | 9/1951 |
Montreal Locomotive Works
Total Built = 146
| Owner | Road Number(s) | Serial Number(s) | Date Built |
|---|---|---|---|
| Canadian National | 1818-1840 | 81013-81035 | 8/1954 - 10/1954 |
| Canadian National | 7830-7834 | 79124-79128 | 11/1953 |
| Canadian National | 7835-7847 | 79180-79192 | 11/1953 - 12/1953 |
| Canadian Pacific | 8426-8446 | 80991-81011 | 3/1954 - 6/1954 |
| Canadian Pacific | 8447-8461 | 81036-81050 | 11/1954 - 12/1954 |
| Estrada de Ferro Central do Brasil (Brazil) | 3301-3348 | 77650-77697 | 5/1952 |
| Ontario Northland | 1304-1307 | 76112-76115 | 10/1951 |
| Ontario Northland | 1308-1311 | 76727-76730 | 11/1951, 12/1951 |
| Pacific Great Eastern | 569-571 | 79121-79123 | 7/1953 - 8/1953 |
| Pacific Great Eastern | 572 | 81012 | 7/1954 |
| Pacific Great Eastern | 573-575 | 81172-81174 | 11/1954 - 12/1954 |
| Pacific Great Eastern | 576-578 | 81204-81206 | 5/1955 |
| Quebec, North Shore & Labrador | 102, 103 | 76110, 76111 | 7/1951 |
| Roberval & Saguenay | 22 | 81185 | 4/1955 |
Sources
- Foster, Gerald. A Field Guide To Trains. New York: Houghton Mifflin, 1996.
- Kirkland, John F. Diesel Builders, The: Volume Two, American Locomotive Company And Montreal Locomotive Works. Glendale: Interurban Press, 1989.
- Pinkepank, Jerry A. Diesel Spotter's Guide. Milwaukee: Kalmbach Publishing Company, 1967.
- Solomon, Brian. Alco Locomotives. Minneapolis: Voyageur Press, 2009.
In a photo taken from the 4th Street footbridge, Pennsylvania Railroad RS3 #8906 switches a cut of cars near the locomotive shops in Altoona, Pennsylvania on May 5, 1960. David R. Sweetland photo. American-Rails.com collection.Of note, Alco's Canadian arm, the Montreal Locomotive Works, was not nearly as successful with the RS3 selling just 98 to the Canadian National, Canadian Pacific, Ontario Northland, Pacific Great Eastern, Quebec, North Shore & Labrador, and the Roberval & Saguenay.
Additionally, Alco built another 69 units for foreign sale including the Algerian Railways, Central do Brazil, Consolidated Railways of Cuba (before trade bans with Cuba were enacted), Ferrocaril del Pacifico, and National de Mexico (the above production roster includes only domestically sold RS3s).
From the historical narrative it is fascinating that it was Alco, not EMD, which pioneered the endearing locomotive design still regularly used in freight service today; the common road-switcher.
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