| Manufacturer: | Electro-Motive Division, GMC |
|---|---|
| EMD Model: | GP9 (Drawing) |
| Date Built: | April, 1955 |
| Construction Number: | 19978 |
| S.P. Order Number: | 5369-2 |
| Weight: | 259,720 pounds |
| Length: | 55' 9" (over coupler pulling faces) |
| Maximum Height Above Rail: | 14' 6" |
| Width Over Handrails: | 10' 3" |
| Original Maximum Speed: | 71 mph (61-16 gear ratio) |
| Interim Maximum Speed: | 77 mph (60-17 gear ratio) |
| Current Maximum Speed: | 65 mph (62-15 gear ratio) |
| Diesel Fuel: | 1200 gallons |
| Engine Cooling Water: | 250 gallons |
| Steam Generator Water: | 1200 gallons |
Engine Data
| Model: | EMD 16-567C (Drawing) |
|---|---|
| Serial Number: | 55A87 (January, 1955) |
| Horsepower: | 1750 |
| Bore: | 8 1/2" |
| Stroke: | 10" |
| RPM AT Idle: | 275 |
| RPM At Full Throttle: | 835 |
| Oil Capacity: | 200 gallons |
| Oil Pressure Maximum/Minimum: | 65 lbs maximum, 6 lbs minimum at idle |
| Engine Weight: | 31,200 pounds |
/---------electrical data
Electrical Data
| Low Voltage System: | 64 volts D.C. |
|---|---|
| Battery Type: | 8 Volt, 420 ampere hour |
| Battery Weight (each): | 408 pounds (3264 pounds total) |
| Charging Generator: | EMD 18KW (Drawing) |
| Charging Voltage: | 72 Volts |
| Driving Method: | Cam shaft gear train |
| High Voltage System: | Up to about 1000 volts D.C. (note) |
| Main Generator: | EMD D12-B (Drawing) |
| Driving Method: | Engine crankshaft (rear) |
| Main Generator Weight: | 17,250 pounds |
| Alternator: | EMD D14 |
| Alternator Output: | 195 volts AC at 120cps (full RPM) |
| Alternator Location: | Crankshaft end of main generator |
Note: Locomotive makes transition at 965 volts.
Truck Data
| Truck Centers: | 31' 0" |
|---|---|
| Axle Spacing (within truck frame): | 9' 0" |
| Wheel Diameter: | 40" (new wheel) |
| Axle Diameter At Motor Bearing: | 8" (new axle) |
| Axle Bearing Size: | 6 1/2" by 12" |
| Wheel/Axle Assembly Weight: | 4,100 pounds |
| Traction Motor (original): | EMD D37 |
| Traction Motor (current): | EMD D77 (Drawing) |
| Traction Motor Weight: | 6,165 pounds |
| Truck Assembly Weight: | 39,000 pounds |
/------------Air Compressor
Air System Data
| Air Compressor (original): | Air Cooled WXO (Drawing) |
|---|---|
| Air Compressor (current): | Water Cooled WAE (Drawing) |
| Capacity: | 234 Cubic Feet/Minute at 835 RPM |
| Driving Method: | Engine crankshaft (front) |
| Compressor Weight: | 1,575 pounds |
| Air Brake Type (original): | Westinghouse HSC |
| Air Brake Type (current): | Westinghouse 24RL |
/--------------Steam Generator
Steam Generator Data
| Manufacturer: | Vapor-Clarkson |
|---|---|
| Model: | OK4625 (Drawing) |
| Amperage Draw: | 45 to 55 amps |
| Maximum Fuel Consumption: | 32 gallons per hour |
| Water Pressure Range: | 225 to 350 pounds |
| Rated Evaporative Capacity: | 330 gallons of water per hour |
| Generator Location: | Short hood |
| Generator Weight: | 4000 pounds |
