SD28 - MagnumMacKivler/RLCPT2 GitHub Wiki
A former Columbus and Greenville, now Illinois Central Gulf SD28 sits in East St. Louis, IL. Photo credit to Bill Wilcox
The EMD SD28 was a non-turbocharged version of the somewhat popular SD35 locomotive, and featured a Roots blown EMD V16-567D1 engine for power. The SD28 was only built between July and September of 1965, and as such only 6 locomotives were built: Two for the Columbus and Greenway Railway, and four for the Reserve Mining Company.
A passenger variant, called the SDP28, was made specifically for export to the Korean National Railways; it featured an extended square end to fit a steam generator, and would be the same style of carbody for passenger hood units such as the GP40P, and SDP40.
A Korean National Railways SDP28 sits in Yongsan, Korea. Photo credit to R. Craig
PT-Specific Information
| General Info | - |
|---|---|
| Prime Mover | EMD 16-567D1 |
| Horsepower | 1800 |
| Truck Type | EMD "Flexicoil" C |
| Axles | 6 |
| Traction Motors | 6 |
| Minimum Weight | 360000 lbs. |
| Maximum Weight | 400000 lbs. ⚠ |
| Model Base Speed | 71 |
| Top Speed | 71, 77, 83, 89 MPH |
| Electrical System | - |
|---|---|
| Generator Max Current | 4500 Amps |
| Max Traction Motor (TM) Current | 1500 Amps |
| Max Continuous TM Current | 1000 Amps |
| Traction Motor Type | DC |
| Factor of Adhesion | 25% |
| Transition Mode | Automatic with Selector |
| Transition Groups | 3, 3, 3, 3, 2, 2, 2, 1, 1 |
| Transition Shunts | 1, 0.79, 0.61, 0.53, 1, 0.53, 0.38, 1, 0.63 |
| Generator Transition | No |
| Traction Control | APR 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 |
| Air Brake Schedule | 26L |
| Compressor CFM | 253 (WBO @ 900 RPM) |
| Main Reservoir Volume | 28.4 Cubic Feet |
(1) 6BL or 24RL brakes were optional
Notes: ⚠: Not Verified or Educated Guess