FP45 - MagnumMacKivler/RLCPT2 GitHub Wiki
An ATSF FP45, now repainted into Santa Fe's "Super Fleet" with unmistakable red lettering, sits at EMD's La Grange, Illinois plant for a promotional open house in 1989. Photo credit John Sesonske
The FP45 was a passenger, cowled locomotive variant of the base SD45. This locomotive utilized the same cowl covering as the F45, along with the longer frame for a steam generator from the SDP45. The FP45 created a covered, aerodynamic look for some railroads that desired to replace their aging streamline locomotives (like the E9 or F7).
The FP45 can be differentiated from the F45 by a longer carbody behind the rear door; a 3 feet, 2 1/2 inc longer carbody than its freight only cousin infact. The FP45 can also be differentiated from Amtrak's SDP40Fs (Later owned by ATSF and converted to "SDF40-2" locomotives) by riding on EMD Flexicoil C trucks, while the SDP40F rode on HTC trucks that were standard with the SD40-2 type that they were based upon.
In total, two railroads purchased a total of 14: Five were bought the Milwaukee Railroad, and the remaining 9 were purchased by the Santa Fe railroad. All FP45s were produced between 1967 and 1968, and only lasted a year since their market demand was fairly small.
PT-Specific Information
| General Info | - |
|---|---|
| Prime Mover | EMD 20-645E3 |
| Horsepower | 3600 |
| Truck Type | EMD Flexicoil C |
| Axles | 6 |
| Traction Motors | 6 |
| Minimum Weight | 368000 lbs |
| Maximum Weight | 420000 lbs |
| Model Base Speed | 71 MPH |
| Top Speed | 71, 77, 83, 89, or 95 MPH |
| Electrical System | - |
|---|---|
| Generator Max Current | 6000 Amps |
| Max Traction Motor (TM) Current | 1500 Amps |
| Max Continuous TM Current | 1050 Amps |
| Traction Motor Type | DC |
| Factor of Adhesion | 25% |
| Transition Mode | Automatic with selector |
| Transition Groups | 2, 2, 2, 2, 2, 2, 1, 1, 1, 1 (1) |
| Transition Shunts | 1, 0.72, 0.56, 0.46, 0.39, 0.34, 1, 0.72, 0.56, 0.46 (1) |
| Generator Transition | No |
| Traction Control | APR + Sand |
| 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 | 26-L |
| Compressor CFM | 254 (WBO @ 904 RPM) |
| Main Reservoir Volume | 35 Cubic Feet |
Notes
(1): Some later built SD45s may have had a simplified transition setup, such as Groups 2, 1 / Shunts 1, 1. The FP45 was unknown to ever have this transition setup, however it will be labeled here as an alternative. ⚠
⚠: Not Verified or Educated Guess