Alco S-1 (E1530) and S-3 (1530A)

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
New: 1 May 2005 Drawing by: Jacques Belanger
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Engine Builder: Alco Engine: 4-cycle Model 539 6L
Bore & Stroke 12.5" X 13.0"
RPM (Maximum / Minimum) 740 / 315
Main Generator: GE - GT552A Horsepower: 600 (S-1) and 660 (S-3)
Gear Ratio: 74:18 Speed: 60 mph
Trucks: Blunt 4-Wheel Configuration: B-B
Traction Motor Blowers: Mechanical Driven (2) Model: ?
Weight: 210,000 lbs Traction Motors: GE 731 (six)
Tractive Effort (starting) 57,500 @ 25% (S-1) and 59,700 lbs @ 30% (S-3) Tractive Effort (continuous): 46,000 lbs @ 5 mph
Multiple Unit Capability: No Dynamic Braking: Yes
Auxilary Generator: GE SMG139 Alternator: --
Air Brake: Westinghouse Model: 14EL
Compressor: Westinghouse Model: 3CD
Boiler Type: -- Lbs/hr: --
Quantity Built: 555 (S-1) / 127 (S-3) Dates: S-1: 5/1940 to 6/1950 and S-3: 6/1950 to 10/1953
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Exterior Dimensions S-1 and S-3
Total Length 44'-05"
Pilot to Pilot 36'-00"
Wheel Diameter 40"
Truck Wheel Base 8'-00"
Height to Top Engine Hood 12'-01"
Height to Top Cab Hood 14'-05"
Cab Width 10'-00"
Top Walkway Width 8'-01"
Walkway Width 5'-00"
Engine Hood Width 9'-11"
Center Bolster 22'-00"
Center Front Truck to Front Pilot 7'-00"
Center Rear Tucrk to Rear Pilot 7'-00"
Distance between Truck Centers 30'-00"
Minimum Turning Radious 50 degrees
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Fuel Oil: 635 Lubricating Oil: 80
Engine Cooling Water: 200 Sand Capacity: 27 cu. ft.
Options: Dynamic Brakes
  • Air Signal Lines
  • Hump Control
  • Stanley Heater
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Drawing by: Jean-Denis Bachand
Reference Sources:
  • Alco Design Data
  • Canadian Pacific Mechanical Data
  • Erie Lackawana Mechanical Data

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