Alco "World Locomotive" DL500 (FD6 / FP6 and FD7 / FP7)

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
New: 23 December 2006 DL-500 Drawing by: Jacques Belanger
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Engine Builder: American Locomotive Company Engine: V12 4-cycle Model 251B
Bore & Stroke 9" X 10.5"
RPM (Maximum / Minimum) 1000 / 400
Main Generator: GE - GT581 Horsepower: 1800
Gear Ratio: 62:15 Speed: 65 mph
Trucks: 6-Wheel Configuration: C-C
Traction Motor Blowers: Electrically Driven Model: GE GY27 (four)
Weight: 211,500 lbs Traction Motors: GE 752 (four)
Tractive Effort (starting) 58,025 lbs @ 25% Tractive Effort (continuous): 30,500 lbs @ 20 mph
Multiple Unit Capability: Yes Dynamic Braking: Yes
Auxilary Generator: GE GY27 Alternator: GE GT56
Air Brake: Westinghouse Model: 24RL
Compressor: Westinghouse Model: 3CDC
Boiler Type: Vapor 4616/4225 PSI: 1600/2250
Quantity Built: 67 Dates: 500Bs (12/1955 to 6/1967) and 500Cs (7/57 to 12/67
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Exterior Dimensions DL 500
Total Length 58"-11.5"
Wheel Diameter 38", 40", 42" optional
Truck Wheel Base 13'-09"
Height to Top Engine Hood 13'-01.5"
Height to Top Cab Hood 13'-01.05"
Cab Width 10'-03"
Engine Hood Width 10'-00"
Center Bolster 30'-05"
Center Front Truck to Front Pilot 1'-07"
Center Rear Tucrk to Rear Pilot 1'-05"
Distance between Truck Centers 44'-02"
Minimum Turning Radious 30 degrees / degrees
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Fuel Oil: 1600 Lubricating Oil: 200
Engine Cooling Water: 230 (250 - FD7/ FP7) Sand Capacity: 22 cu. ft.
Options: Truck Width
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Graphic by: JEAN-DENIS BACHAND
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Reference Sources:
  • Diesel Locomotives, Volume 2, by Bob Hayden
  • Illustrated Treasury of GM Locomotives by James W. Kerr
  • Diesel Locomotives: The First 50 Years, by Louis A. Marre
  • Early Diesel & Electric Locomotives, Rail Heritage Publications
  • Diesel & Electric Locomotives Specifications, 1981, by FK Hudson
  • A Centennial Remembrance, by Richard T. Steinbrenner

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