General Electric UM20C |
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| Data Sheet Information Compiled by: JEAN-DENIS BACHAND |
| New: 30 September 2007 |
Drawing by: Jean-Denis Bachand |
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| Engine Builder: Cooper Bessemer |
Engine: 4-cycle Model FDL-8T |
| Bore & Stroke |
9" X 10.5" |
| RPM (Maximum / Minimum) |
1050 / 400 |
| Main Generator: GE - GT601 |
Horsepower: 2000 |
| Gear Ratio: 93:18 |
Speed: 64 mph |
| 6-Wheel |
Configuration: C-C |
| Traction Motor Blowers: Mech. |
Number: 2 |
| Weight: 196,000 lbs (and Phase 2: 193,000) |
Traction Motors: GE 761 (Four) |
| Tractive Effort (starting) 59,300 lbs @ 30% |
Tractive Effort (continuous): 58,300 lbs @ 21 mph |
| Multiple Unit Capability: Yes |
Dynamic Braking: Yes |
| Auxilary Generator: GE GY27 |
Alternator: GMG-146 |
| Air Brake: Westinghouse |
Model: 26LA |
| Air Compressor: Westinghouse |
Model: 2CDC (and Phase 2: 3CDC |
| Quantity Built: Unknown
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Dates: 1976 to Present |
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| Exterior Dimensions
| UM20C |
| Total Length |
52'-00" (55'-06") |
| Wheel Diameter |
36" |
| Truck Wheel Base |
11'-03.5" |
| Height to Hood Top |
12'-00.5" |
| Height to Top Cab |
11'-11.5" |
| Cab Width |
9'-00" |
| Hood Width |
8'-11" |
| Top of Walkway |
8'-07.5" |
| Walkway Width |
4'-00" |
| Center Bolster |
29'-09.5" |
| Distance between Truck Centers |
41'-01" |
| Leading Edge Front Truck to Front Pilot |
2'-09.5" |
| Trailing Edge Rear Truck to Rear Pilot |
3'-09.5" |
| Leading Edge Front Truck to Trailing Edge Rear Truck |
39'-11" |
| Minimum Turning Radious |
23 degrees |
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| Fuel Oil: 1200
| Lubricating Oil: 276 |
| Engine Cooling Water: 200
| Sand Capacity: 18 cu. ft. |
| Options: |
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| Drawing by: Jean-Denis Bachand |
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Reference Sources:
- GE Advanced Generation, 1989 by James W. Kerr
- GE Locomotives Vols 1 & 2, 1981, by James W. Kerr
- Car & Locomotive Encyclopedia, 1984, Simmons & Boardman Publications
- Moden Locomotive Handbook, 1979, Railway Fuel & Operating Officers Assn.
- Diesel & Electric Locomotives Specifications, 1981, by F. K. Hudson
- GE Export U-Series Model Evolution by Steve Plmano
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