|Builder||American Locomotive Company|
|AAR wheel arr.||B-B|
|Prime mover||ALCO 241|
|Engine type||4-stroke diesel|
The ALCO DL-203 diesel-electric locomotive (known informally as the Black Maria) was an experimental freight locomotive produced by ALCO of Schenectady, New York. It was a predecessor to much better known ALCO FA. It was built in September 1945, and the total production run included 2 cab A units, and a single B (cabless) unit. The locomotives were powered by a V12 ALCO 241 diesel engine, rated at 1500 hp (1,100 kW). The locomotive could attain a top speed of 80 mph (Freight) and 125 mph (Passenger). With the B-B wheel arrangement and carbody construction, these experimental units hinted at the FA units to come.
The three units were numbered 1500A, B, C and were tested on the New York Central Railroad, the Delaware and Hudson Railroad, the New York, New Haven and Hartford Railroad, and the Bangor and Aroostook Railroad, among others. They were scrapped in September 1947.
- A picture of The Black Maria in service
- Drawings of both the "A" and "B" units, plus additional information about them
|Diesel-electric locomotives built by ALCO|
|Switchers:||HH series, S-1, S-2, S-3, S-4, S-5, S-6, T-6, SSB-9|
|RS series:||RS-1, RS-2, RS-3, RS-11, RS-27, RS-32, RS-36|
|RSC series:||RSC-2, RSC-3|
|RSD series:||RSD-1, RSD-4, RSD-5, RSD-7, RSD-12, RSD-15|
|Cab units:||DL-103b, DL-105, DL-107, DL-109, DL-110, DL-203, FA, FB, PA, PB|
|Century series:||C415, C420, C424, C425, C430, C628, C630, C636, C855|