TS2017 G-TraX SN Holman Class 1003 Interurban MU and GE 65 Ton Steeple Cab Mod Pack

This is the Sacramento Northern Holman Class 1003 Interurban MU & GE 65 Tonner Steeple Cab Mod Pack.


In order to utilize this freeware physics upgrade, you must have purchased the "Train Simulator: Sacramento Northern: Suisun Bay – San Francisco Route Add-On" pack available at Steam: http://store.steampowered.com/app/376979


This is a freeware pack; in no way is it to be used for commercial purposes. You are free, however to further modify the physics and sound enhancements found in this pack for personal use if you so choose.


The purpose of this pack is to adjust the physics performance of the Class 1003 Interurban Multiple Unit and add a more prototypical motor / gearbox sound.


List of changes (MU):

  1. Modified tractive effort of motor car and braking rate.

  2. Ensured trailer cars are actually unpowered (unpowered the trucks).

  3. Adjusted motor & trailer weights.

  4. Adjusted master controller position response levels.

  5. Fixed ammeter.

  6. Allow for power braking and flashing the motors (taking power with brakes applied; useful for starting up grades).


List of changes (Steeple Cab):

  1. Modified tractive effort curve.

  2. Adjusted weight.

  3. Allow for power braking.


Technical specifications:

  1. Holman Car Co. Class 1003 Interurban MU (Motor Control Car)

  2. Starting tractive effort of 11,240 lbs (50 kN) to 18.7 mph

  3. Starting Acceleration: 1.0 mph/s to 2.5 mph/s (Depending on motor/trailer ratio)

  4. Wheel horsepower of 560 hp (418 kW) @ 18.7 mph

  5. Balancing speed of ~ 65-90 mph in Full Parallel (Depending on motor/trailer ratio)

  6. Weight = 98,560 lbs (44 imperial tons)

  7. Max traction amps = 500

  8. Trailer Car (Various Builders)

  9. Weight = 61,000 (27.23 imperial tons)

  10. General Electric 65 Tonner Steeple Cab:

  11. Starting tractive effort of 30,000 lbs (133.45 kN)

  12. Continuous TE of 21,600 lbs (96.1 kN) @ 13.2 mph

  13. Wheel horsepower of 848 hp (632.836 kW) @ 15 mph

  14. Weight of 126,640 lbs (56.536 imperial tons)

  15. Max traction amps = 500


Class 1003 MU Master Controller Operating Instructions:

  1. There are 7 points of power on the MC.

  2. Points 1-4 are Series points, with notch 4 (57%) being Full Series, no resistance.

  3. Points 5-7 are Parallel points, with notch 7 (100%) being Full Parallel, no resistance.

  4. Points 1-3 and 5-6 are resistance points, meaning power is being fed through the traction resistors when the controller is in these points.

  5. Proper operation entails that only points 4 and 7 be used continuously for any given length of time. Otherwise, you risk burning up the resistor grids.

  6. When accelerating, notch up progressively through each point, spending no more than 2 seconds in any point that is not a continuous point.

  7. The MC cannot be backed off; you must place the MC back in off (coast) position before notching back up to the new lower desired point of power.

  8. For low speed yard moves, use points 1 and 2 to attain desired speed, then place MC in coast. To maintain low speed, alternate between point 1 and coast.


IMPORTANT; Install Instructions

  1. Locate SNRySouth (C:\Program Files (x86)\Steam\SteamApps\common\RailWorks\Assets\G-TraX\SNRySouth)

  2. Open G-TraX_SN_Holman_Class_1003_Interurban_MU_Mod_Pack.rar

  3. Drag the file folders from the .rar in step 2 into the directory you opened in step 1.

  4. The installation should be complete. Run TS2017 to check.

  5. If installation is botched or does not work, to back up to original files, delete the folders from step 3.


Thank you for downloading and installing.

Enjoy =)