SD70ACe Locomotive Pack - Steam

The SD70ACe 

Locomotive Pack 

1 BACKGROUND .........................................................................................2 

1.1 EMD SD70 Series ...........................................................................................................2 

2 ROLLING STOCK ......................................................................................4 

2.1 EMD SD70ACe Union Pacific ............................................................................................4 

2.2 EMD SD70ACe Denver Rio Grande West ............................................................................4 

3 SCENARIOS.............................................................................................5 

3.1 Free Roam: SD70ACes at Victorville ..................................................................................5 

3.2 Free Roam: SD70ACe at Larkspur .....................................................................................5 

3.3 Front and Back ..............................................................................................................5 

3.4 Working the Hump Yard ..................................................................................................5 

3.5 Colorado Ski Train .........................................................................................................5 

4 USING THE SD70ACE IN CUSTOM SCENARIOS ..........................................6 

Version 2.0 

©RailSimulator.com

1 Background 

1.1 EMD SD70 Series 

RailWorks – SD70ACe Locomotive Pack 

The EMD SD70 is a series of diesel-electric locomotives produced by the Electro-Motive 

Division of General Motors beginning in 1992. Over 4000 locomotives in this series have been 

produced, mostly of the SD70M and SD70MAC models. All locomotives of this series are hood 

units with C-C trucks. 

SD70 

The SD70 uses the smaller standard cab or spartan cab, common on older locomotives, 

instead of the larger new comfort cab. This model also has DC traction motors, which 

simplifies the electrical system by cutting out the need for computer-controlled inverters. 

120 examples of this locomotive were produced, for Norfolk Southern Railway, Conrail, 

Illinois Central and Southern Peru Copper. 

Production of the standard cab ended in 1994. The 24 Conrail SD70s were assembled from 

kits at Juniata, and the IC and SPC SD70s were assembled from kits at Super Steel 

Schenectady. Nearly all SD70s are still in service with Norfolk Southern Railway and 

Canadian National, which merged with the Illinois Central in 1999. 

SD70M 

The SD70M has a wide nose and a large comfort cab or 'Safety Cab' in North America, 

allowing crew members to ride more comfortably inside of the locomotive than the older 

standard cab designs. There are two versions of this cab on SD70Ms, the Phase I, which was 

introduced on the SD60M, and is home on the SD80MAC and SD90MACs and the Phase II, 

which made a return to a more boxy design of the SD60M. Though the Phase II cab has a 

two piece window matching the Phase I cab, the nose features a taller square midsection for 

more headroom. The SD70ACe/SD70M-2 line has what is considered a Phase III cab. This 

encompasses windows that are rectangular. Like the SD70, the SD70M also uses DC traction 

motors. 

Starting in mid-2000, the SD70M was produced with SD45-style flared radiators allowing for 

the larger radiator cores needed for split-cooling. There are two versions of this radiator, the 

older version with two large radiator panels per side, and the newer style with four square 

panels per side. This was due to the enactment of the EPA's Tier I environmental 

regulations. Production of the SD70M was replaced by the SD70M-2 in late 2004, as the 

EPA's Tier II regulations went into effect on January 1, 2005. 

1,646 examples of this locomotive were produced. SD70M locomotives were produced with 

4000 horsepower (2,980 kW) EMD 710 engines. Purchasers included CSX, New York 

Susquehanna & Western, Norfolk Southern and Southern Pacific, but the vast majority were 

purchased by Union Pacific. 

SD70I 

The SD70I is a version of the SD70M which has been fitted with a cab that is isolated from 

the frame of the locomotive by rubber gaskets. The isolation reduces noise and vibration 

from the prime mover. A seam is visible across the nose and on the long hood where the cab 

connects with the body. 

26 of this locomotive were produced, all for Canadian National. 

© Copyright RailSimulator.com 2010, all rights reserved Release Version 2.0


SD70MAC 

The SD70MAC is very similar to the SD70M and SD70I, the main difference being that the 

SD70MAC uses AC traction motors. AC motors, while simpler and more reliable than DC 

motors, require expensive inverters to generate a variable-frequency AC signal, raising the 

locomotive's purchase cost substantially. The majority of SD70MAC models were produced 

with 4000 horsepower (2,980 kW) EMD 710 engines, while later-production 

SD70MACs are rated at 4300 horsepower (3,210 kW) and feature SD45-style flared radiators. 

They were also offered with a head-end power generation system for passenger trains. 

Over 1500 of this locomotive were produced. Purchasers include Burlington Northern (now 

BNSF Railway), Conrail (engines now owned by CSX Transportation), CSX, TFM/Kansas City 

Southern Railway and the Alaska Railroad. 

SD70ACe 

The SD70ACe is similar to the SD70MAC; however, it has been updated to meet the latest 

EPA regulations for locomotives. Several other changes were included. The radiator on the 

locomotive is nearly as wide as the cab, and looks similar to the radiator on the SD80 and 

SD90 series of locomotives. The nose has been modified, producing a much more angular 

design than previous. The cables and brake lines have been routed beneath the walkways, 

allowing for easy access by maintenance workers. The SD70ACe is rated at 4,300 horsepower 

(3,200 kW). 

As of 2005, 191 of this locomotive have been produced. Purchasers include BNSF Railway, 

CSX Transportation, Ferromex, Kansas City Southern Railway, Montana RailLink, CVG 

Ferrominera Orinoco , Union Pacific Railroad and Quebec North Shore and Labrador Railway, 

BHP Billiton. 

SD70ACe/lc 

In 2004, BHP Billiton of Australia ordered 14 SD70ACe/lc locomotives for use in iron ore 

hauling; the "lc" designation stands for "low clearance" as these locomotives are designed to 

negotiate the tight clearances under the mine equipment. Certain external differences 

between the SD70ACe and SD70ACe/lc models include the addition of marker lights, number 

boxes lower in the body rather on top of the cab, windscreen protector panels, fire 

suppression canisters, louvre style vents, different horn and subtle differences with 

handrails. 

Of the first batch of SD70ACe/lc (Numbers 4300-4313), 4301-4313 are named after sidings 

on the BHP system. 4300 is used for spare parts and has never seen service. The second 

batch of locomotives (Numbers 4313-4323), have a newly designed isolated cab. An order for 

a third batch of 13 SD70ACe/lcs (Numbers 4334-4346) was placed with EMD in August 2007. 

But such was the demand for locomotive power in the Pilbara region, ten SD70ACe destined 

for BNSF were purchased before this third batch was constructed, becoming numbers 4324- 

4333. These ten ex-BNSF locos (ex-9166, 9167, 9184-9191) are in the BNSF Orange with 

white BHP Billiton lettering and are standard North American SD70ACe units. Some 

modifications have been made to bring them inline with the rest of the fleet. A fifth batch of 

SD70ACe/lc (Numbers 4347-4355) was recently delivered to BHP Billiton in July 2009, 

bringing the total of SD70ACe type locomotives to 55 + 1 for spare parts. An Additional 18 

units are expected to be delivered in the 2nd half of 2010. 


2 Rolling Stock 

The following two liveries are provided in the SD70ACe pack: 

2.1 EMD SD70ACe Union Pacific 


This locomotive appears as “EMD SD70ACe UP” in the editor browser list. 

2.2 EMD SD70ACe Denver Rio Grande West 

This locomotive appears as “EMD SD70ACe DRGW” in the editor browser list. 


3 Scenarios 

3.1 Free Roam: SD70ACes at Victorville 

• Start Location Victorville Yard 

• Career Mode No 

3.2 Free Roam: SD70ACe at Larkspur 

• Start Location Larkspur Yard 

• Career Mode No 

3.3 Front and Back 

• Rating Easy 

• Duration 40mins 

• Career Mode Yes 


Drive an SD70ACe-led freight train to Oro Grande. On the way you need to drop off 

the rear half of your train at Victorville. There is no timetable but you are to follow in 

the signal block of a refrigerator boxcar train. Also, your score is initially set at 1000 

powers. Your aim is to maintain that score. 

3.4 Working the Hump Yard 

• Rating Very hard 



Driving an SD70ACe you need to bring freight cars from Barstow Hump Yard to make 

two separate rakes at Barstow East Yard. Starting with a score of 1000 you will have 

points deducted for poor switching and overspeeding, so take your time and be safe. 

3.5 Colorado Ski Train 

• Rating Medium 



Drive UP Heritage SD70ACe 1989 on a passenger special taking skiers down the 

length of the route. Aim to reach Monument by 14:35. 



4 Using the SD70ACe in Custom Scenarios 

Before you are able to use the SD70ACe locomotives in your own scenarios you must 

enable it in the object set filters for that scenario. 

When you make your own scenarios, or edit existing ones, 

only the default object sets are enabled for that route (for 

example the Kuju/Railsimulator assets for European routes 

and Kuju/RailsimulatorUS for North American routes). To 

enable additional object sets (which could be for any 

downloaded or freeware content) ready for use they must 

be checked in the object set filter list in the editors. 

When editing the scenario you wish to add the SD70ACe 

locomotives to, ensure you are in the Scenario Editor and 

click the small blue square on the middle left panel. 

This opens a new panel on the right hand side of the 

screen (you may need to move your mose over to the right 

hand side for the panel to fly out. You can pin it open if 

you wish). 

This new panel has a drop down list off providers 

(usually the company name which produced the add-on) 

and a list off all products by that provider. 

The SD70ACe pack is produced by Railsimulator.com so 

RSC needs to be selected as the provider. The rest of 

the panel is then populated by all other RSC products 

you have purchased. 

To enable the content of the pack for use in this 

scenario, check the box next to “Dash9Pack01”. 

Now the SD70ACe engines will be available in the asset 

browser list for placement in the current scenario only. 

If you want the SD70ACe engines to appear in the 

browser list for EVERY scenario on a route you must 

follow the same procedure but be in the World Editor 

and you can now check the first box. 

The slight disadvantage of having content enabled for all 

scenarios on a route, even when that content may not be 

used, is increased loading times.

SD70ACe Locomotive Pack - Steam

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