EMD SD70 Series & GE Evolution Series Physics Mod Packs Joint Thread

[FanRailer]

I've decided to move all release announcements and discussions for the SD70 series and the Evolution series loco physics mod packs onto one thread. This way, I won't have to update multiple threads every time I make an update or release something new. So without further ado:


I have adjusted my latest physics mod packs for the EMD SD70 Series (SD70MAC, SD70ACe, and SD70M-2) and the GE Evolution Series (ES44DC, ES44AC, ES44AH). The test run seen here is performed with identical consists of 10 loaded autorack cars between Hamilton and Princeton Junction on the NEC.

You can download the relevant packs (which I meticulously keep updated here):
EMD SD70 Series - http://railworksamerica.com/index.php/d ... ccessories
NS SD70ACe Heritage - Awaiting file library upload.
GE ES44AC/ES44AH - http://railworksamerica.com/index.php/d ... ccessories
GE ES44DC (Marias Pass) - http://railworksamerica.com/index.php/d ... ccessories
GE ES44DC (Stevens Pass) - http://railworksamerica.com/index.php/d ... ccessories
NS ES44AC/ES44AH Heritage - BETA testing
Sherman Hill ES44AC & SD70M - BETA testing
CSX ES44AH - BETA Testing
NS ES44AC (NS Coal Route) - Pending
CP ES44AC (Canadian Mountain Pass) - Pending

These are the updated parameters I've factored into the the physics mods for each locomotive model (#5 is not demonstrated in the video):

1. EMD SD70M-2 (EMD 16-710G3C-T2; 4500 GHP)
a. Starting tractive effort of 163,000 lbs (725.06 kN) up to 8.486 mph.
b. Traction horsepower at wheel is 4,050 hp (3,022.389 kW); efficiency rating of 90%.
c. Max Dynamic Brake effort of 86,850 lbs (386.328 kN) from 22.4 mph to 9 mph; extended range sawtooth function between those speeds; linear fade from max brake effort @ 9 mph to 0 lbs @ 3 mph.
d. Dynamic Brake horsepower at wheel is 4,556 hp (3,400 kW).
e. Increased weight of 177 metric tons (390,214.2 lbs).
f. Maximum speed of 75 mph.
g. Fuel consumption @ notch 8 is 187 gallons per hour.

2. GE ES44DC (GE GEVO-12; 4700 GHP)
a. Starting tractive effort of 142,000 lbs (631.64 kN).
b. Continuous tractive effort of 105,680 lbs (470.08 kN) @ 12.9 mph.
c. Traction horsepower at wheel is 4,390 hp (3,276.12 kW); efficiency rating of 93.4%.
d. Max Dynamic Brake effort of 74,675 lbs (332.171 kN) @ 26.2 mph to 9 mph; extended range sawtooth function between those speeds; linear fade from max brake effort @ 9 mph to 0 lbs @ 3.5 mph.
e. Dynamic Brake horsepower at wheel is 5,212.6 hp (3,890 kW).
f. Increased weight of 190.509 metric tons (420,000 lbs).
g. Maximum speed of 75 mph.
h. Fuel consumption @ notch 8 is 210 gallons per hour.

3. EMD SD70MAC (EMD 16-710G3B; 4000 GHP)
a. Starting tractive effort of 175,500 lbs (780.663 kN) up to 7.165 mph.
b. Traction horsepower at wheel is 3,350 hp (2,500 kW); efficiency rating of 83.75%.
c. Max Dynamic Brake effort of 81,000 lbs (360.3 kN) from 23.845 mph to 3 mph; linear fade from that speed to 0 lbs @ 1 mph.
d. Dynamic Brake horsepower at wheel is 5,145.6 hp (3,840 kW).
e. Increased weight of 188.3 metric tons (415,126.18 lbs).
f. Maximum speed of 70 mph.
g. Fuel consumption @ notch 8 is 191 gallons per hour.

4. EMD SD70ACe (EMD 16-710G3C-T2; 4500 GHP)
a. Starting tractive effort of 189,000 lbs (840.714 kN) up to 7.646 mph.
b. Traction horsepower at wheel is 4,185 hp (3,123.134 kW); efficiency rating of 93%.
c. Max Dynamic Brake effort of 105,000 lbs (467.063 kN) from 18.395 mph to 3 mph; linear fade from that speed to 0 lbs @ 1 mph.
d. Dynamic Brake horsepower at wheel is 5,145.6 hp (3,840 kW).
e. Increased weight of 191 metric tons (421,078.6 lbs).
f. Maximum speed of 75 mph.
g. Fuel consumption @ notch 8 is 187 gallons per hour.

5. GE ES44AC Standard Adhesion (GE GEVO-12; 4700 GHP)
a. Starting tractive effort of 180,000 lbs (800.68 kN) up to 8.2714 mph.
b. Traction horsepower at wheel is 4,390 hp (3,276.12 kW); efficiency rating of 93.4%.
c. Max Dynamic Brake effort of 117,000 lbs (520.442 kN) from 16.51 mph to 3 mph; linear fade from that speed to 0 lbs @ 1 mph.
d. Dynamic Brake horsepower at wheel is 5,145.6 hp (3,840 kW).
e. Increased weight of 188.7 metric tons (416,008.02 lbs).
f. Maximum speed of 75 mph.
g. Fuel consumption @ notch 8 is 210 gallons per hour.

6. GE ES44AC High Adhesion (GE GEVO-12; 4700 GHP)
a. Starting tractive effort of 198,000 lbs (880.8 kN) up to 7.519 mph.
b. Traction horsepower at wheel is 4,390 hp (3,276.12 kW); efficiency rating of 93.4%.
c. Max Dynamic Brake effort of 117,000 lbs (520.442 kN) from 16.51 mph to 3 mph; linear fade from that speed to 0 lbs @ 1 mph.
d. Dynamic Brake horsepower at wheel is 5,145.6 hp (3,840 kW).
e. Increased weight of 195.954 metric tons (432,000.1884 lbs).
f. Maximum speed of 75 mph.
g. Fuel consumption @ notch 8 is 210 gallons per hour.

[FanRailer]

Here is a showcase of the extended range dynamic brake feature that I've included as part of the physics mods for the EMD SD70M-2 and the GE ES44DC locomotives. The key feature here is the distinctive sawtooth profile of the extended range portion of the dynamic brake curve, something that has not been properly simulated in TS2015 (Railworks) until now.

Here are the actual values in the dynamic brake effort vs speed files for both locomotives. The horsepower and braking effort parameters used in both locomotives can be viewed in the post above.

SD70M-2:

<?xml version="1.0" encoding="utf-8"?>
<cCSVArray xmlns:d="http://www.kuju.com/TnT/2003/Delta" d:version="1.0" d:id="1">
<CSVItem>
<cCSVItem d:id="2">
<X d:type="sFloat32">3</X>
<Y d:type="sFloat32">0</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="3">
<X d:type="sFloat32">9</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="4">
<X d:type="sFloat32">11.333</X>
<Y d:type="sFloat32">0.72</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="5">
<X d:type="sFloat32">13.466</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="6">
<X d:type="sFloat32">15.699</X>
<Y d:type="sFloat32">0.836</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="7">
<X d:type="sFloat32">17.933</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="8">
<X d:type="sFloat32">20.166</X>
<Y d:type="sFloat32">0.891</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="9">
<X d:type="sFloat32">22.4</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="10">
<X d:type="sFloat32">30</X>
<Y d:type="sFloat32">0.6563688063736345</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="11">
<X d:type="sFloat32">40</X>
<Y d:type="sFloat32">0.4922766047802259</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="12">
<X d:type="sFloat32">50</X>
<Y d:type="sFloat32">0.3938212838241807</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="13">
<X d:type="sFloat32">60</X>
<Y d:type="sFloat32">0.3281844031868173</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="14">
<X d:type="sFloat32">70</X>
<Y d:type="sFloat32">0.2813009170172719</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="15">
<X d:type="sFloat32">75</X>
<Y d:type="sFloat32">0.2625475225494538</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="16">
<X d:type="sFloat32">78</X>
<Y d:type="sFloat32">0</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
</CSVItem>
</cCSVArray>

ES44DC:

<?xml version="1.0" encoding="utf-8"?>
<cCSVArray xmlns:d="http://www.kuju.com/TnT/2003/Delta" d:version="1.0" d:id="1">
<CSVItem>
<cCSVItem d:id="2">
<X d:type="sFloat32">3.5</X>
<Y d:type="sFloat32">0</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="3">
<X d:type="sFloat32">9</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="4">
<X d:type="sFloat32">11.865</X>
<Y d:type="sFloat32">0.72</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="5">
<X d:type="sFloat32">14.734</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="6">
<X d:type="sFloat32">17.599</X>
<Y d:type="sFloat32">0.836</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="7">
<X d:type="sFloat32">20.467</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="8">
<X d:type="sFloat32">23.333</X>
<Y d:type="sFloat32">0.891</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="9">
<X d:type="sFloat32">26.2</X>
<Y d:type="sFloat32">1</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="10">
<X d:type="sFloat32">30</X>
<Y d:type="sFloat32">0.8734</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="11">
<X d:type="sFloat32">40</X>
<Y d:type="sFloat32">0.65505</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="12">
<X d:type="sFloat32">50</X>
<Y d:type="sFloat32">0.52404</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="13">
<X d:type="sFloat32">60</X>
<Y d:type="sFloat32">0.4367</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="14">
<X d:type="sFloat32">70</X>
<Y d:type="sFloat32">0.375</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="15">
<X d:type="sFloat32">75</X>
<Y d:type="sFloat32">0.35</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
<cCSVItem d:id="16">
<X d:type="sFloat32">78</X>
<Y d:type="sFloat32">0</Y>
<Name d:type="cDeltaString"></Name>
</cCSVItem>
</CSVItem>
</cCSVArray>

[_o_OOOO_oo-Kanawha]

Interesting stuff, but what have you done with the adhesion factor under different weather conditions?

Most stock engines are too "adhesive".

[FanRailer]

Interesting stuff, but what have you done with the adhesion factor under different weather conditions?

Most stock engines are too "adhesive".

Unless there's another way to change adhesion besides adjusting the weight of the engine, I haven't really focused on that a whole lot. I do find that adhesion is also a function of a track command used in the route; adhesion is not entirely dictated by the weight of the locomotive and the weather conditions.

[Chacal]

There's an adhesion (or slippage or wheel slip) factor in the engine blueprint. There's one for wet track and snow.
Can't remember the attribute names.

[FanRailer]

This is the Kuju GE BNSF ES44AC & ES44C4 Physics Modification pack.

In order to utilize this freeware physics upgrade, you must have purchased the "US Loco & Asset Pack" available at Steam: http://store.steampowered.com/app/208306/

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 enhancements found in this pack for personal use if you so choose.

THIS IS NOT A SOUND UPGRADE PACK. Physics adjustments made around the existing sounds.

The purpose of this pack is to adjust the locomotive weight, motor amperage limits, and traction and braking effort values for more realistic operation.

This pack includes the ability to switch between the standard ES44AC and the newly coded physics for the ES44C4. More details below.

General Parameter Change Log:
1. Changed HUD ammeter function so that it displays tractive/braking effort in thousands of pounds. This means that if the HUD ammeter reads "157 Amps", the locomotive is putting out 157,000 lbs of tractive effort. Conversely, if the HUD ammeter reads "-34.52 Amps", the locomotive is putting out 34,520 lbs of dynamic braking effort.
2. Adjusted tractive effort ratings and curves for individual locomotive variants based on the specifications listed below.
3. Adjusted dynamic brake effort ratings and curves for individual locomotive variants based on the specifications listed below.

Specific horsepower and tractive effort ratings used in calculation for individual locomotive variants:
1. GE ES44AC Standard Adhesion (GE GEVO-12; 4700 GHP)
a. Starting tractive effort of 180,000 lbs (800.68 kN) up to 8.2714 mph.
b. Traction horsepower at wheel is 4,390 hp (3,276.12 kW); efficiency rating of 93.4%.
c. Max Dynamic Brake effort of 117,000 lbs (520.442 kN) from 16.51 mph to 3 mph; linear fade from that speed to 0 lbs @ 1 mph.
d. Dynamic Brake horsepower at wheel is 5,145.6 hp (3,840 kW).
e. Increased weight of 188.7 metric tons (416,008.02 lbs).
f. Maximum speed of 75 mph.
g. Fuel consumption @ notch 8 is 210 gallons per hour.
h. Units numbered 5718-5747

2. GE ES44C4 (GE GEVO-12; 4700 GHP)
a. Starting tractive effort of 144,000 lbs (640.544 kN) up to 11.44 mph.
b. Traction horsepower at wheel is 4,390 hp (3,276.12 kW); efficiency rating of 93.4%.
c. Max Dynamic Brake effort of 78,000 lbs (346.962 kN) from 25.085 mph to 3 mph; linear fade from that speed to 0 lbs @ 1 mph.
d. Dynamic Brake horsepower at wheel is 5,212.6 hp (3,890 kW).
e. Set weight @ 126 metric tons (277,779.6 lbs). This is to simulate the total lowered axle load on the powered axles, since the core game code only differentiates powered trucks from non-powered trucks, and not powered axles from non-powered axles.
f. Maximum speed of 75 mph.
g. Fuel consumption @ notch 8 is 210 gallons per hour.
h. Units numbered 8018-8047


IMPORTANT; Install Instructions

1. Locate the following directory: (C:\Program Files (x86)\Steam\SteamApps\common\RailWorks\Assets\Kuju\RailsimulatorUS)
2. Open Railworks_Kuju_BNSF_GE_ES44AC_&_ES44C4_Physics_Mod_Pack.rar
2a. Before proceeding to step 3, make sure your "Kuju" folder is NOT set to "read only". You can change the folder settings using the properties function. IF the "Kuju" folder is read only, the files will not overwrite existing files when you attempt step 3.
3. Drag the file folder from the .rar in step 2 into the directory you opened in step 1. Overwrite if asked.
4. The installation should be complete. Run TS2015 to check.

User's Manual:
Upon installation, the pack defaults to using the new ES44C4 Physics and numbering scheme. In order to switch physics, follow the steps below:

1. Open the following directories:
a. "C:\Program Files (x86)\Steam\SteamApps\common\RailWorks\Assets\Kuju\RailsimulatorUS\RailVehicles\Diesel\ES44AC\BNSF\Simulation"
b. "C:\Program Files (x86)\Steam\SteamApps\common\RailWorks\Assets\Kuju\RailsimulatorUS\RailVehicles\Diesel\ES44AC\BNSF\Engine"
2. In each of those directories, you will see two folders (one for each set of locomotive physics):
a. "ES44AC"
b. "ES44C4"
3. Once you choose which set of physics to use, open the respective physics folder in both directories from step 1.
4. Copy (CTRL + C) all files you find in the opened folder located in directory 1a.
5. Proceed back to directory 1a and paste (CTRL + V) the copied files into the directory; overwrite when prompted.
6. Copy (CTRL + C) all files you find in the opened folder located in directory 1b.
7. Proceed back to directory 1b and paste (CTRL + V) the copied files into the directory; overwrite when prompted.
8. If the previous 7 steps were completed properly, the physics swap should be successful; run TS2015 to check.

Thank you for downloading and installing.
Enjoy =)

I will update with the download link when the file goes live.

[OpenRailer90]

Sorry to bump this thread, but the NS SD70ACe Heritage physics are already up, but not mentioned in the first post. http://railworksamerica.com/index.php/d ... ccessories

Many of the physics are waiting to be done/overdue including the Kuju Union Pacific ES44, Sherman Hill, SD70Pack01, SD75, SP SD70M, Academy SD70, UP Heritage physics. As patient as I am it's been quite a while.

[Chacal]

You've gotta be joking.

[FanRailer]

Sorry to bump this thread, but the NS SD70ACe Heritage physics are already up, but not mentioned in the first post. http://railworksamerica.com/index.php/d ... ccessories

Many of the physics are waiting to be done/overdue including the Kuju Union Pacific ES44, Sherman Hill, SD70Pack01, SD75, SP SD70M, Academy SD70, UP Heritage physics. As patient as I am it's been quite a while.

Most of those mods aren't possible, as changing even one thing in the physics files renders the locomotive unloadable in the game. It's been quite a while for a good reason.

[plethaus]

Many of the physics are waiting to be done/overdue including the Kuju Union Pacific ES44, Sherman Hill, SD70Pack01, SD75, SP SD70M, Academy SD70, UP Heritage physics. As patient as I am it's been quite a while.

Wow, that's quite a nice attitude. How about do the research and fix them yourself if you can't wait any longer?

[JohnTrainHead]

Most of those mods aren't possible, as changing even one thing in the physics files renders the locomotive unloadable in the game.

That sucks. Why does DTG make half their locomotives impossible to work with?

[buzz456]

The game moves on. Some of the older product just doesn't have the features. In spite of what some think they have no responsibility to update everything to the latest version of everything. You should be involved in aviation where at the stroke of a pen or the whim of a new product line someone decides that the item you bought a few years back for several thousand dollars is now a boat anchor. Be happy there are many members here who donate their time to figuring out the mods that they so selflessly provide for the rest of us.