The ALCO RS-11 is a class of diesel-electric locomotive rated at 1,800 hp (1.34 MW), that rode on two-axle trucks, having a B-B wheel arrangement. This model was built by both Alco (327 units) and Montreal Locomotive Works (99 units). Total production was 426 units.[1]
The first three RS-11s were produced by ALCO in February 1956 as a demonstrator set. This locomotive, classified by ALCO as model DL-701, was their first high-horsepower road switcher,[1] intended to be a replacement for the very popular RS-3 road switcher. Featuring a V-12, 1,800 hp (1,300 kW) 251B diesel engine, the RS-11 was ALCO's answer to EMD's very successful GP9. The turbocharged RS-11 accelerated faster, had a higher tractive effort rating and typically used less fuel than the competition. It was also quite versatile and could be found in heavy haul freight as well as passenger service. It was produced in high-nose and low-nose versions. Montreal Locomotive Works also built 351 nearly identical units, known as the RS-18, for the Canadian market.[2]
While the RS-11 benefited from the increased power and reliability offered with ALCO's new 251B engine, and was arguably a more advanced product than the GP9, its market acceptance was disappointing against the reputation EMD's locomotives had made for superior reliability.
Waller, R. (1998). Locomotive Roster: 1976. Conrail Cyclopedia . Retrieved November 22, 2022, from http://crcyc.railfan.net/locos/misc/rosters/roster-76.html[self-published source?]
Wikimedia Commons has media related to ALCO RS-11 locomotives.
January 26, 2023
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The ALCO RS 11 is a class of diesel electric locomotive rated at 1 800 hp 1 34 MW that rode on two axle trucks having a B B wheel arrangement This model was built by both Alco 327 units and Montreal Locomotive Works 99 units Total production was 426 units 1 ALCO RS 11TPW 400 an RS 11 on display at Illinois Railway Museum July 16 2005 Type and originPower typeDiesel electricBuilderALCO MLWModelRS 11Build dateFebruary 1956 to June 1961 Alco November 1957 1 unit June 1963 to April 1964 MLW Total produced431SpecificationsConfiguration AARB BGauge4 ft 8 1 2 in 1 435 mm standard gaugeTrucksAAR type BWheel diameter40 in 1 016 mm Minimum curve21 274 37 ft or 83 63 m Wheelbase39 ft 4 in 11 99 m Length56 ft 6 in 17 22 m Width10 ft 1 5 8 in 3 089 m Height14 ft 5 1 8 in 4 397 m Loco weight257 300 lb 116 700 kg Fuel capacity2 000 US gal 7 600 L 1 700 imp gal Prime moverALCO 251BRPM range1 000 rpm max Engine typeV12 Four stroke dieselAspirationTurbochargerGeneratorGE GT 581Traction motors 4 GE 752Cylinders12Cylinder size9 in 10 5 in 229 mm 267 mm Performance figuresMaximum speed70 85 mph 113 137 km h Power output1 800 hp 1 300 kW Tractive effort64 325 lb 29 177 kg CareerLocaleNorth America South America Contents 1 Development 2 Original purchasers 3 Preservation 4 See also 5 ReferencesDevelopment EditThe first three RS 11s were produced by ALCO in February 1956 as a demonstrator set This locomotive classified by ALCO as model DL 701 was their first high horsepower road switcher 1 intended to be a replacement for the very popular RS 3 road switcher Featuring a V 12 1 800 hp 1 300 kW 251B diesel engine the RS 11 was ALCO s answer to EMD s very successful GP9 The turbocharged RS 11 accelerated faster had a higher tractive effort rating and typically used less fuel than the competition It was also quite versatile and could be found in heavy haul freight as well as passenger service It was produced in high nose and low nose versions Montreal Locomotive Works also built 351 nearly identical units known as the RS 18 for the Canadian market 2 While the RS 11 benefited from the increased power and reliability offered with ALCO s new 251B engine and was arguably a more advanced product than the GP9 its market acceptance was disappointing against the reputation EMD s locomotives had made for superior reliability Original purchasers EditOwner 3 self published source Quantity Numbers NotesAlco 3 701 701A 701BCarolina and Northwestern Railway 1 11Chicago and Northwestern Railway 2 1613 1624 RS 3s rebuilt by Alco in March 1960 as RS 11 with a 251 B engine but retained RS 3 high short hood 4 Delaware and Hudson 12 5000 5011Duluth Winnipeg and Pacific 15 3600 3614Erie Mining 15 300 314Ferrocarril del Pacifico 1 1501Ferrocarriles Nacionales de Mexico 94 7200 7293Green Bay and Western 1 309Lehigh Valley Railroad 4 400 403Maine Central 1 801Ministry of Communication and Transportation Mexico 4 7123 1 7123 4Missouri Pacific 12 4601 4612Monongahela Connecting Railroad 1 700New York New Haven and Hartford 15 1400 1414New York Central 9 8000 8008New York Chicago and St Louis Railroad 35 558 577 850 864Norfolk and Western 99 308 406Northern Pacific 18 900 917Pennsylvania 38 8617 8654Portland Terminal 1 1082Seaboard Air Line 10 100 109Southern Peru Copper Corp 5 3 6 8Southern Pacific Railroad 34 5723 5729 5845 5871Toledo Peoria and Western Railway 3 400 402Total 431Preservation EditDuluth Winnipeg and Pacific 3612 is preserved as York Durham Heritage Railway 3612 at the York Durham Heritage Railway in Ontario 5 Ferrocarriles Nacionales de Mexico 7282 is preserved at the Yucatan RR Museum in Merida Yucatan New York New Haven and Hartford 1402 is preserved at the Danbury Railway Museum in Danbury Connecticut Toledo Peoria and Western 400 is preserved at the Illinois Railway Museum in Union Illinois 6 See also EditList of ALCO diesel locomotives List of MLW diesel locomotivesReferences Edit a b Foster Gerald 1996 A Field Guide to Trains Boston New York Houghton Mifflin Company pp 26 ISBN 0395701120 Pinkepank Jerry A 1978 The second diesel spotter s guide Milwaukee WI Kalmbach Books p 248 ISBN 0 89024 026 4 Thompson David Alco s RS11 Original Owners www trainweb org Retrieved 10 September 2021 Dorin Patrick C 1972 Chicago and North Western power Burbank CA Superior Publishing Company p 144 ISBN 0 87564 715 4 Our Trains York Durham Heritage Railway York Durham Heritage Railway Archived from the original on 2019 07 12 Retrieved June 16 2021 IRM Roster Toledo Peoria amp Western 400 Illinois Railway Museum Archived from the original on 2000 12 18 Retrieved June 16 2021 Steinbrenner Richard T 2003 The American Locomotive Company A Centennial Remembrance On Track Publishers LLC ISBN 0 911122 07 9 Roster from The Diesel Shop http www thedieselshop us Alco RS11 HTML Archived 2011 12 16 at the Wayback Machine self published source Waller R 1998 Locomotive Roster 1976 Conrail Cyclopedia Retrieved November 22 2022 from http crcyc railfan net locos misc rosters roster 76 html self published source Wikimedia Commons has media related to ALCO RS 11 locomotives Retrieved from https en wikipedia org w index php title ALCO RS 11 amp oldid 1134996120, wikipedia, wiki, book, books, library,
