Alco S-2 (E1540) and S-4 (ME1000) |
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| Data Sheet Information Compiled by: JEAN-DENIS BACHAND |
| New: 3 May 2005 |
Drawing by: Jean-Denis Bachand |
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| Engine Builder: Dominion Engineering Works |
Engine: 4-cycle Model 539 6L |
| Bore & Stroke |
12.5" X 13.0" |
| RPM (Maximum / Minimum) |
740 / 315 (S-2) and 740/275 (S-4) |
| Main Generator: GE - GT553 (S-2) / GT 563 (S-4) |
Horsepower: 1000 |
| Gear Ratio: 75:16 |
Speed: 60 mph |
| Trucks: S2: Blunt 4-Wheel/ S4: Type A |
Configuration: B-B |
| Traction Motor Blowers: Mechanical Driven (2) |
Model: ? |
| Weight: 229,700 lbs |
Traction Motors: S-2: GE 731 (Four) / S-4: GE 731D |
| Tractive Effort (starting) 69,000 @ 30% (S-2) and 72,400 lbs @ 30% (S-4) |
Tractive Effort (continuous): 29,200 lbs @ 6 mph / 34,000 @ 8 mph |
| Multiple Unit Capability: Yes |
Dynamic Braking: Yes |
| Auxilary Generator: GE SMG139 |
Alternator: -- |
| Air Brake: Westinghouse |
Model: 14EL |
| Compressor: Westinghouse |
Model: 3CD |
| Quantity Built: 1,462 (S-2) / 651 (S-4)
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Dates: S-2: 6/1950 to 11/1953 and S-4: 6/1950 to 1/1961 |
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| Drawing by: JEAN-DENIS BACHAND |
| Exterior Dimensions
| S-2 and S-4 |
| Total Length |
45'-05" |
| Pilot to Pilot |
37'-00" |
| Wheel Diameter |
40" |
| Truck Wheel Base |
8'-00" |
| Height to Top Engine Hood |
12'-02" |
| Height to Top Cab Hood |
14'-06" |
| Cab Width |
10'-00" |
| Top Walkway Width |
8'-02" |
| Walkway Width |
5'-00" |
| Engine Hood Width |
9'-11" |
| Center Bolster |
22'-06" |
| Center Front Truck to Front Pilot |
7'-06" |
| Center Rear Tucrk to Rear Pilot |
7'-00" |
| Distance between Truck Centers |
30'-06" |
| Minimum Turning Radius |
39 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
- Auto Transition with Forestalling Features
- Hump Control
- Stanley Heater
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| Drawing by: JEAN-DENIS BACHAND |
Reference Sources:
- Alco Design Data
- Canadian National Mechanical Data
- Canadian Pacific Mechanical Data
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