SD35 - MagnumMacKivler/RLCPT2 GitHub Wiki
A Southern Pacific example of an EMD SD35. Image credit to James Hunt and rrpicturearchives.com
A Louisville and Nashville SDP35. Image credit to the Louisville and Nashville Historical Society
The SD35 was EMD’s redeveloped 6 axle locomotive offering that ran from June of 1964 to January of 1966, along with a non-turbocharged variant called the SD28. With the carbody styling of the SD24 harkening back to the founding SD7 and SD9 units, EMD redesigned the look of their locomotives beginning with the SD35. The SD35 was also the last Special Duty series to include the EMD 567D3A V16 diesel engine, capable of 2500 HP, before its eventual replacement with the 645 series in the SD38 and SD40. Despite a one-and-a-half-year stint on EMD’s catalogs, 360 units were built for ACL, B&O, CofG, C&O, L&N, N&W, PRR, SOU, SP, and WM.
The EMD SDP35 was EMD’s steam generator passenger variant of the locomotive, which began in the July of 1964 to September of 1965. 35 SDP35s were built between its one-year run, notably for SAL, ACL, L&N, and UP. SDP35s (and presumably those who willed it on their freight cousins) had gear ratios capable of 89 miles per hour maximum.
Fun fact: The L&N Railroad, which bought SDP35 units for replacements to EMD E units on passenger service, were not delivered with steam equipment, and were equipped with remote control equipment instead when passenger service was discontinued.
PT-Specific Information
| General Info | - |
|---|---|
| Prime Mover | EMD 16-567D3A |
| Horsepower | 2500 |
| 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 |
| Starter Mode | Manual Primer, Manual Start |
| Air Brake Schedule | 26L 6BL 24RL |
| Compressor CFM | 254 (WBO @ 900 RPM) |
| Main Reservoir Volume | 28.4 Cubic Feet |
Notes: ⚠: Not Verified or Educated Guess