C30 7A - MagnumMacKivler/RLCPT2 GitHub Wiki
Conrail 6586 poses for the camera, in mint paint. Altoona, PA. Photo flickr user marksd45
The C30-7A is, for all intents and purposes, a very late production C30-7. They were built on request by Conrail for a more fuel efficient 3000 horsepower unit; while the C30-7 itself was more cost effective than the SD40-2, GE's uprating of their V12 FDL and associated tractive improvments lent itself to a remarkably fuel efficient locomotive. Further, being end-of-production units, they are identifiable by being phase 2d across the board in addition to the six hood doors per side. Production was one year only, in 1984, with Conrail being the sole buyer of the 50 units. Being end of production units, they were equipped with the same modernized alternator as the C36-7 and thus utilized generator transition.
PT-Specific Information
| General Info | - |
|---|---|
| Prime Mover | GE-7FDL12G |
| Horsepower | 3000 |
| Truck Type | GE FB-3 (1) |
| Axles | 6 |
| Traction Motors | 6 |
| Minimum Weight | 358,000 lbs |
| Maximum Weight | 420,000 lbs |
| Model Base Speed | 70 MPH |
| Top Speed | 70, 80, or 86 ⚠ |
| Electrical System | - |
|---|---|
| Generator Max Current | 5400 Amps ⚠ |
| Max Traction Motor (TM) Current | 1600 Amps |
| Max Continuous TM Current | 1195 Amps |
| Traction Motor Type | DC |
| Factor of Adhesion | 29% ⚠ |
| Transition Mode | Automatic, no selector |
| Transition Groups | 1 |
| Transition Shunts | 1 |
| Generator Transition | Yes |
| Traction Control | APR + Sand |
| Dynamic Braking (DB) Mode (if used) | Mechanical Blowers (2) |
| DB Max Current | 740 Amps ⚠ |
| DB Max Continuous Current | 740 Amps |
| Blended Braking | No |
| Miscellaneous | - |
|---|---|
| Head-End Power (HEP) | No |
| HEP Power Consumption | N/A |
| HEP Standby/Run Mode | N/A |
| Load Ramp Speed | 3 Amps/Tick |
| TM Overload Protection | Yes |
| Starter Mode | Manual Primer, Manual Start |
| Air Brake Schedule | 26-L |
| Compressor CFM | 236.25 (Wabco 3CDCBL @ 1050 RPM) |
| Main Reservoir Volume | 32.4 Cu.Ft |
Notes
⚠: Not Verified or Educated Guess
(1) C30-7As were offered with various trucks classified as FB-3; Adirondac and GSC castings with various mountings for brake cylinders or clasp brakes could be found. Otherwise, the difference was cosmetic.
(2) Electrically blown dynamics were offered as an upgrade kit from GE.