SD45 2 - MagnumMacKivler/RLCPT2 GitHub Wiki
An ATSF SD45-2 locomotive sits outside of Barstow, California in 1975. This is one of six "Bicentennial" units, celebrating the 200 year anniversary of the founding of the United States of America in 1776. Photo credit Kansas State Historical Society, Santa Fe Collection
The SD45-2 was an improvement on the successful SD45 locomotive, and had upgrades similar to other Dash 2 locomotives; modular electronics, an AR10 alternator, modified traction motor blower duct-work, and (for the case for six axle locomotives) a new HT-C truck design to ride on. The SD45-2 however had one particular difference between it's previous counterpart: It lacked the signature flared radiators that the SD45 was famous for, taking for a much more standardized flat hood look.
The SD45-2 was built between 1972 and 1974, however only 136 units were built, with 90 of those going to the Santa Fe railroad. The rest were rostered by Clinchfield (18), Seaboard Coast Line (15), and Erie Lackwanna (13)
PT-Specific Information
| General Info | - |
|---|---|
| Prime Mover | EMD 20-645E3 |
| Horsepower | 3600 |
| Truck Type | EMD HT-C |
| Axles | 6 |
| Traction Motors | 6 |
| Minimum Weight | 364,250 |
| Maximum Weight | 420,000 ⚠ |
| Model Base Speed | 65 MPH |
| Top Speed | 65, 70, 76, or 82 MPH (1) |
| Electrical System | - |
|---|---|
| Generator Max Current | 6000 Amps |
| Max Traction Motor (TM) Current | 1500 Amps |
| Max Continuous TM Current | 1050 Amps (1) |
| Traction Motor Type | DC |
| Factor of Adhesion | 27% |
| Transition Mode | Automatic |
| Transition Groups | 2, 1 |
| Transition Shunts | 1, 1 |
| Generator Transition | No |
| Traction Control | Automatic Power Reduction with Sanding |
| Dynamic Braking (DB) Mode (if used) | Mechanical Blowers |
| DB Max Current | 700 Amps |
| DB Max Continuous Current | 700 Amps |
| Blended Braking | No |
| Miscellaneous | - |
|---|---|
| Head-End Power (HEP) | No |
| HEP Power Consumption | N/A |
| HEP Standby/Run Mode | N/A |
| Load Ramp Speed | 2 Amps/Tick |
| TM Overload Protection | No |
| Starter Mode | Manual Primer, Manual Start |
| Air Brake Schedule | 26L |
| Compressor CFM | 254 (Gardner Denver WBO @ 900 RPM) |
| Main Reservoir Volume | 35 Cubic Feet |
Notes:
(1) Locomotives equipped for 82 MPH are rated for 1075 amps of Max Continuous TM Current.
⚠: Not Verified or Educated Guess