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Union Pacific EMD SD70ACe

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The Electro-Motive Diesel SD70ACe is a diesel-electric locomotive, operating as the successor to the SD70MAC and designed for heavy-haul freight applications. Over 2,000 ACe variants have been produced since 2005, of which roughly 800 are operated by Union Pacific.

This workshop creation is a 1:1 scale replica of a Union Pacific EMD SD70ACe, with a simplified but realistic interior and display suite, and plug-and-play multiple-unit (MU) controls.

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• Specifications
  
• Start-up Procedure
  
• Controls
  
• Displays

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Size: 13×12×93(95¹) blocks (W×H×L)
Max Speed: ~80 mph (~37m/s)
Fuel: ~19000ℓ
Fuel Rate: up to ~18ℓ/min

¹ including couplers

Note: Since diesel-electric is relatively inefficient in Stormworks, this locomotive uses a diesel direct-drive power source.

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1. Battery Knife Switch ON
   
2. Starter ON (HOLD)
   
3. Automatic Brake OFF (ZERO)

• Enable the EFCO/STOP button to shut down the engine. This may take several seconds.
  
• Enable the Reverser button to drive backwards.
  
• Press the Horn buttons to sound the horn.
  
• Adjust the Dynamic Brake throttle to control the engine alternators.

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W/S: Power Throttle
A/D: None
Left/Right: None
Up/Down: Automatic Brake
Spacebar: Track Switch
Hotkey 1: Starter
Hotkey 2: Reverser
Hotkey 3: Horn
Hotkey 4: Bell
Hotkey 5: Exterior Lights
Hotkey 6: Cab Lights

Most of these controls wire to physical inputs within the cab, and can be controlled from either.

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This EMD SD70ACe contains three digital displays:

• The first display shows tractive effort¹ and remaining fuel (in US gallons).
  
• The second display shows linear speed using a dial and number (in mph).
  
• The third display shows linear speed using a number (in mph).

¹ since torque in Stormworks is not really torque, this is largely meaningless

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This EMD SD70ACe includes a plug-and-play multiple unit (MU) control system. By default, the locomotive will accept input from the composite data connections on either coupling, but will listen to cab inputs if no signal is available.

You can also designate a locomotive as a control car, by enabling the MU Control toggle button in the electrical cabinet. In this mode, the locomotive will always listen to cab inputs, and will transmit the controls to the couplings. If a locomotive is connected back-to-back, it will automatically engage the reverser accordingly.

Note: if two or more control cars connect to each other, both will disable their control input. You will need to re-toggle the MU Control toggle button on the locomotive you wish to operate. If you try to enable a second control car while one is already connected, the first control car will disable itself automatically.

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This EMD SD70ACe can be refuelled via a hose anchor on either side of the fuel tank. It can be recharged via an electrical cable anchor at either end of the locomotive.

• The driver-side door is only 6 blocks high, requiring you to crouch to enter (or get into the seat directly).
  
• The ladders are too high to easily jump onto the locomotive directly. Handles are attached to the rear of the locomotive to assist.
  
• The analog speed dial only has two digits. If the locomotive exceeds 99mph, it will wrap around to 0mph.