The Pennsy Modeler
In order to portray Pennsylvania Railroad and interchange partners as accurately as possible, this blog contains articles which are essentially notes to myself, but are shared should the community desire the same information.
Articles are sorted by modification date, so if an existing article receives an update it will be presented at the top of the list again.
- Hits: 803
EMD SW / SW1, Class ES6
The EMD SW1 is a 600-horsepower diesel-electric switcher locomotive built by General Motors' Electro-Motive Corporation (later Division) between December 1938 and November 1953. Final assembly was at EMD's plant at LaGrange (McCook) Illinois. The SW1 was the second generation of 3,402 cu in (55.75 L) switcher from EMD, succeeding the SC (cast frame) and SW (welded frame). The most significant change from those earlier models was the use of an engine of EMD's own design, the then-new 567 engine, here in 600 hp V6 form. 661 locomotives of this design were built, no SW1s were built after March 1943 until production started again in September 1945.
Like most long-running locomotive models, a number of changes were made to the SW1 over its production life. Internally, the post-war locomotives were somewhat improved, and used the 567A engine.
- Hits: 991
Baldwin DR 4-4-1500 "Early Shark", Class BF15 / BF15a
The Baldwin DR-4-4-15 was a 1,500-horsepower cab unit-type diesel locomotive built for freight service by the Baldwin Locomotive Works between November 1947 and June 1950. It was produced in two different body types, nicknamed the "Babyface" and "Sharknose" styles by railfans, though Baldwin used the same model number for both. 22 "Babyface" cab-equipped A units were built, along with 11 cabless booster B units; 36 "Sharknose" A units and 36 B units were constructed, making a total for all models of 105 locomotives built.
- Hits: 670
FM H-16-44, Class FS16m
The FM H-16-44 was a road-switcher produced by Fairbanks-Morse from April 1950 – February 1963. The locomotive shared an identical platform and carbody with the predecessor Model FM H-15-44 (but not the FM H-20-44 end cab road switcher which used a different carbody and frame and a larger prime mover), and were equipped with the same eight-cylinder opposed piston engine that had been uprated to 1,600 horsepower. The H-16-44 was configured in a B-B wheel arrangement, mounted atop a pair of two-axle AAR Type-B road trucks with all axles powered. In late 1950, the AAR trucks were almost exclusively replaced with the same units found on the company's "C-liner" locomotives.
- Hits: 712
Alco S-1 and S-3, Class AS6
The ALCO S-1 and S-3 were 660 horsepower switcher diesel-electric locomotives produced by ALCO and their Canadian subsidiary Montreal Locomotive Works (MLW). The two locomotives differed only in trucks, with the S-1 using ALCO's own Blunt trucks, and the S-3 using AAR type A switcher trucks. The S-1 was built between April 1940 and June 1950, with a total of 543 completed, while the S-3 was constructed between February 1950 and November 1953 (MLW until 1957) with total sales of 300.
- Hits: 645
FM H-10-44, Class FS10
The FM H-10-44 was a yard switcher produced by Fairbanks-Morse from August, 1944–March, 1950. The units featured a 1,000-horsepower, six-cylinder opposed piston engine prime mover, and were configured in a B-B wheel arrangement mounted atop a pair of two-axle AAR Type-A switcher trucks, with all axles powered. Many H-10-44s received modifications that increased their horsepower rating to 1,200 hp.
- Hits: 831
Baldwin VO-660, Class BS6
The Baldwin VO-660 was a diesel-electric locomotive switcher built by Baldwin Locomotive Works between April, 1939 and May, 1946. The 197,520–203,980 lb units were powered by a six-cylinder diesel engine rated at 660 horsepower, and rode on two-axle AAR Type-A switcher trucks in a B-B wheel arrangement. 142 examples of this model were built for American railroads, along with the United States Navy. Baldwin replaced the VO-660 with the model DS-4-4-660 in 1946.
- Hits: 774
FM ERIE-A / B, Class FF20 / FP20 / FP20a
The Erie-built was the first streamlined, cab-equipped dual service diesel locomotive built by Fairbanks-Morse, introduced as direct competition to such models as the ALCO PA and EMD E-unit. As F-M lacked the space to manufacture the units in their own plant, the work was subcontracted out to General Electric, which produced the locomotives at its Erie, Pennsylvania, facility, thereby giving rise to the name "Erie-built."
- Hits: 657
Baldwin RT-624, Class BS24 / BS24m
The Baldwin RT-624 was a twin-engined diesel-electric locomotive, built by Baldwin Locomotive Works between 1951 and 1954.
The RT-624, an improved version of the Baldwin DT-6-6-2000, was a center-cab transfer locomotive. Twenty-four locomotives were built using 6-cylinder turbocharged 606A prime movers during 1951–1954.
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- Hits: 18
Lima-Hamilton LT-2500, Class LS25 / LS25m
The Lima-Hamilton 2500 horsepower Transfer locomotive (sometimes referred to by its Specification Number, A-3177 or the railfan designation LT-2500) was a diesel-electric transfer-unit locomotive, built by the Lima Locomotive Works between 1950 and 1951. The LT-2500 was the final locomotive model produced by Lima-Hamilton before the company merged with the Baldwin Locomotive Works in 1951.
All twenty-two units were purchased by the Pennsylvania Railroad.
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