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ALCO RSD-15 - Wikipedia

From Wikipedia, the free encyclopedia

ALCO RSD-15

Green Bay and Western 2407, preserved at the Illinois Railway Museum

Type and origin
Power type	Diesel-electric
Builder	Alco
Model	DL600B
Build date	August 1956 – June 1960
Total produced	75

Specifications
Configuration:
• AAR	C-C
• UIC	Co′Co′
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Trucks	Alco trimount
Wheel diameter	40 in (1,016 mm)
Length	66 ft 7 in (20.29 m)^[1]
Width	10 ft 2 in (3.10 m)
Height	14 ft 11 in (4.55 m)
Loco weight	335,000 lb (151,953.4 kg)
Fuel capacity	3,350 US gallons (12,700 L; 2,790 imp gal)
Prime mover	Alco 251B
Engine type	V16 Four-stroke diesel
Generator	GE GT586
Traction motors	GE 752 (6x)
Cylinders	16

Performance figures
Maximum speed	65 mph (105 km/h)
Power output	2,400 hp (1.79 MW)
Tractive effort	Starting: 95,600 lbf (425.2 kN) at 25% adhesion; Continuous: 79,500 lbf (353.6 kN) at 12 mph (19 km/h)

The ALCO RSD-15 is a diesel-electric locomotive built by the American Locomotive Company (ALCO) of Schenectady, New York between August 1956 and June 1960, during which time 75 locomotives were produced. The RSD-15 was powered by an ALCO 251 16-cylinder four-cycle V-type prime mover rated at 2,400 horsepower (1.79 MW); it superseded the almost identical ALCO 244-engined RSD-7, and was catalogued alongside the similar but smaller 1,800 hp (1.34 MW) RSD-12, powered by a 12-cylinder 251-model V-type diesel engine.^[2]

The locomotive rode on a pair of three-axle Trimount trucks with all axles powered by General Electric model 752 traction motors. These trucks have an asymmetrical axle spacing because of the positioning of the traction motors. The six-motor design allowed higher tractive effort at lower speeds than an otherwise similar four-motor design.

The RSD-15 could be ordered with either a high or low short hood; railfans dubbed the low short hood version "Alligators", due to their unusually long low noses.

RSD-17

A single example of the very similar model RSD-17 was built by the Montreal Locomotive Works in 1957. After demonstrating on the Canadian Pacific (as #7007), the Canadian National (as #3899), and the Pacific Great Eastern (as #624), the locomotive was purchased by the Canadian Pacific (as #8921). Nicknamed "The Empress of Agincourt", by Pete Fairfull, who was its primary operator for many years, (for its common presence around Toronto's Agincourt yard), the locomotive served the railway until 1995, when truck problems forced its retirement.^[3]

Original owners

Railroad	Quantity	Road numbers	Notes
Atchison, Topeka and Santa Fe Railway	50	800–849	Low nose
Duluth, Missabe and Iron Range Railroad	6	50–55	Later Bessemer and Lake Erie Railroad 881-886 Cartier acquired the six units (91-96) 6/1972. All 6 units were converted to low hoods. #96 in service as Susquehanna and Maryland RR (SMD) #96
Pennsylvania Railroad	6	8611–8616	Later Penn Central 6811–6816. Conrail rebuilt four of them to MT6s 1125–1128. After the dividing of Conrail, 2 went to CSX as 1017 and 1018, and 2 went to Norfolk Southern as 1114 and 1115.
Southern Pacific Railroad	3	250–252	Low nose
St. Louis Southwestern Railway	10	850-859^[4]	Renumbered 5150 – 5159 in 1965 Low nose
Canadian Pacific Railway	1	8921	RSD-17^[3]

^[2]^[5]

Surviving examples

Five RSD-15s survive in preservation; all are ex-Santa Fe units.^[6]

• Santa Fe #843 is preserved at the Arkansas Railroad Museum in Pine Bluff, Arkansas.

• Santa Fe #9820 is preserved at the California State Railroad Museum in Sacramento, but is not publicly displayed.

• Austin and Texas Central #442 (ex-ATSF #842) is preserved, but is currently out of service, at the Austin Steam Train Association (ASTA) in Cedar Park, Texas. It's painted in a modified Southern Pacific "Black Widow" scheme.^[7] While #442 is sidelined being rebuilt should return into service late 2024 or early 2025.^[8]

• Green Bay and Western #2407 (ex-ATSF #841) is preserved and operational at the Illinois Railway Museum.^[9]

• Utah Railway #401 (ex-ATSF #823) is preserved at the Utah State Railroad Museum in Ogden, Utah.

• The RSD-17 demonstrator, Canadian Pacific #8921, is preserved at the Elgin County Railway Museum, St. Thomas, Ontario, Canada.^[3]

Models

The RSD-15 has been produced in N scale by Mehano of Yugoslavia and Broadway Limited of the United States.

The RSD-15 has been produced in HO scale by Broadway Limited Imports and handmade brass. Alco Models (DL600b) high and Low hoods. Also (Overland Models).^[10]

The RSD-15 has been produced in O scale by Atlas O in their Trainman line.^[11]

The RSD-17 has not been mass-produced in any scale; however, in 2008 Broadway Limited Imports did produce a limited run of the high-hood CP 8921 in HO scale.

References

Marre, Louis A. (1995). Diesel Locomotives: The First 50 Years. Kalmbach Publishing Co., Waukesha, WI (USA). ISBN 0-89024-258-5.

^ "ALCO RSD-15 Data Sheet". The Diesel Shop. Archived from the original on 2006-10-01. Retrieved 2006-11-29.
^ ^a ^b Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. ISBN 978-0-89024-026-7.
^ ^a ^b ^c "Elgin County Railway Museum...St. Thomas, Ontario...The Railway Capital of Canada". Retrieved 2009-04-14.
^ "Cotton Belt (SSW) RSD15 Info Page". espee.railfan.net. Retrieved 2024-04-01.
^ "ALCO RSD-15 Roster". The Diesel Shop. Archived from the original on 2006-10-01. Retrieved 2006-11-29.
^ "Preserved ALCO Road-Switchers". The Diesel Shop. Archived from the original on 30 December 2006. Retrieved 2006-11-29.
^ "Alco Diesel 442". Austin Steam Train. Archived from the original on 2006-10-08. Retrieved 2006-11-29.
^ "Locomotive 442".
^ Glischinski, Steve (1997). Santa Fe Railway. Osceola, WI: Motorbooks International. p. 126. ISBN 978-0-7603-0380-1.
^ "ALCO RSD-15". Broadway Limited Imports. Archived from the original on 2006-11-20. Retrieved 2006-11-29.
^ "ALCO RSD-15". Atlas O, LLC. Archived from the original on 2 February 2007. Retrieved 2007-02-08.

External links

Media related to ALCO RSD-15 locomotives at Wikimedia Commons

v t e Diesel–electric locomotives built by ALCO
Switchers	ALCO 300 ALCO 600 HH600 HH660 HH900 HH1000 S-1 S-2 S-3 S-4 DL420 S-5 S-6 T-6 SB-8/SSB-9
RS, RSC and RSD series	RS-1 RS-2 RS-3 (RS-3M) RS-11 RS-27 RS-32 RS-36 RSC-1 RSC-2 RSC-3 RSD-1 MRS-1 RSD-4 RSD-5 RSD-7 RSD-12 RSD-15
Cab units	Rebel power car DL-103b DL-105 DL-107 DL-108 DL-109 DL-110 DL-202 DL-203 FA FB PA PB
Century series	C415 C420 C424 C425 C430 C628 C630 C636 C855
Diesel–hydraulics	DH643
Export locomotives	DL560C RSD-39
Unproduced locomotives	C428 C620 C624 C636F C636P C650DH
List of ALCO diesel Locomotives

v t e Diesel and gas turbine locomotives built by MLW
Early switchers	S-2 S-3 S-4 S-7 S-10 S-11 S-12 S-13
Cab units	FA-1 FB-1 FA-2 FB-2 FPA-2 FPB-2 FPA-4 FPB-4
Roadswitchers	RS-1 RS-2 RS-3 RSC-3 RS-10 RS-11 RSD-12 RS-13 RSC-13 RSC-14 RSD-17 RS-18 RS-23 RSC-24 RSD-35
Century series	C-415 C-424 C-630M
M series	M-420 M-420B M-420R M-420TR M-420TR-2 M-424 M-630 M-636 M-640
Other designs	DL500S DL535E M420 TURBO LRC-2 LRC-3 E-1800
Bombardier designs	HR-412 HR-616
(See also: List of MLW diesel locomotives)

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