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St. Louis Car Company.

Retired Georgia Northern Railway No. 2, a Fairbanks-Morse Model OP800 railcar.

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An F-M OP800 Slideshow.

Retired Georgia Northern Railway No. 2, a Fairbanks-Morse Model OP800 railcar.

Fairbanks-Morse FM OP800 Diesel Locomotive - Railcar
The OP800 was a lightweight, streamlined railcar built by the St. Louis Car Company in 1939. Fairbanks-Morse supplied the 800 hp, five-cylinder 8 in × 10 in opposed piston engine prime mover. The units were configured in a highly-unusual 2-A1A wheel arrangement (later converted to 3-A1A) mounted atop a pair of road trucks, and equipped with a front swing coupler pilot. The aft section was divided into two separate compartments: one was used to transport baggage and the other served as a small railway post office, or RPO (the forward door, located just behind the radiator louvers, was equipped with a mail hook).

Six units, accompanied by matching trailing car sets, were manufactured exclusively for the Southern Railway (SR). Two were later sold to the Georgia and Florida Railroad and Georgia Northern Railway as maintenance cars. The remaining four OP800s were scrapped in 1955; selected parts were retained for maintenance use on other SR F-M motive power.

At least four of these cars had individual names applied to them, including "Vulcan", "Cracker", "Joe Wheeler", and "Goldenrod".

No OP800 units survive.


Type and origin
Power type: Diesel-electric
Builder: St. Louis Car Company
Model: OP800
Build date: 1939
Total produced: 6
AAR wheel arrangement: 2-A1A (as built), later 3-A1A
Gauge: 4 ft 8 1⁄2 in standard gauge
Length: 80 ft
Prime mover: Fairbanks-Morse Opposed-piston
Engine type: Opposed piston 2-stroke diesel
Aspiration: Roots Blower
Generator: Westinghouse DC
Cylinders: 5
Cylinder size: 8 in × 10 in
Transmission: Diesel-electric
Loco brake: Straight air
Train brakes: 6-ET Air
Performance figures
Maximum speed: 80 mph
Power: output 800 hp
Operators: Southern Railway, Georgia and Florida Railroad, Georgia Northern Railway
Locale: North America
Disposition: All scrapped

See also:


F-M Diesel-Electric Locomotives

Diesel-Electric Locomotives


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