Alco RS-27 (DL640)

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
New: 2 April 2005 Drawing by: Jean-Denis Bachand
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Engine Builder: Alco Engine: 4-cycle Model 251B V16
Bore & Stroke 9" X 10.5"
RPM (Maximum / Minimum) 1025 / 400
Main Generator: GE - GT581D2 2400
Gear Ratio: 74:18 / 64:19 Speed: 70 mph / 80 mph
4-Wheel Configuration: B-B
Traction Motor Blowers: Mechanical Driven (2) Model: ?
Weight: 265,000 lbs Traction Motors: GE 752 (six)
Tractive Effort (starting) 66,000 lbs @ 25% Tractive Effort (continuous): 42,000 lbs @ 8 mph
Multiple Unit Capability: Yes Dynamic Braking: Yes
Auxilary Generator: GE 566 E1 Alternator: not applicable
Air Brake: Westinghouse Model: 26L
Compressor: Westinghouse Model: 3CDC
Boiler Type: -- Lbs/hr: --
Quantity Built: 27 Dates: 12/1959 to 10/1962
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Exterior Dimensions RS-27
Total Length 57'-02"
Pilot to Pilot 52'-00"
Wheel Diameter 40"
Truck Wheel Base 9'-04"
Height to Top Engine Hood 14'-06"
Height to Top Cab Hood 15'-00"
Cab Width 10'-00"
Top Walkway Width 9'-11"
Walkway Width 5'-01"
Engine Hood Width 9'-11"
Center Bolster 31'-00"
Center Front Truck to Front Pilot 8'-00"
Center Rear Tucrk to Rear Pilot 8'-02"
Distance between Truck Centers 40'-04"
Minimum Turning Radious 30 degrees
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Fuel Oil: 2400 Lubricating Oil: 250
Engine Cooling Water: 320 Sand Capacity: 22 cu. ft.
Options: Dynamic Brakes
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Somebody's Large Digital Image Here
Drawing by: Jean-Denis Bachand
Reference Sources:
  • Railroad Model Craftsman, Issue June 1966
  • Diesel Locomotive, Vol. 2 by Model Railroader (Bob Hayden)
  • The Diesel Builders, Vol.2 by John F. Kirkland

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