Buy Train Simulator Classic Train Simulator: Union Pacific DD35 Add-On PC key

The Train Simulator: Union Pacific DD35 Add-On adds the EMD DD35, DD35A and GP35 locomotives in Union Pacific livery to Train Simulator, along with freight cars and four scenarios for the Sherman Hill route. The Sherman Hill route is available separately and is required to play the scenarios.

The DD35 and GP35

The 5,000 hp (3,700 kW) EMD DD35 was a diesel-electric locomotive built by General Motors Electro-Motive Division for the Union Pacific and Southern Pacific railroads. It combined two GP35 prime movers and their electrical systems on a shared frame beneath one cowling, supported by two four-axle Flexicoil trucks. Each prime mover powered four axles, rather than the GP35 arrangement of two sets of two axles.

The DD35 was a cabless B-unit and needed to be connected to an A-unit for main-line operation. Its four-axle trucks were considered too harsh on the track to lead a train, so EMD answered Union Pacific's request with a four-unit set: two 2,500 hp GP35s sandwiching two DD35s, for a total of 15,000 hp.

Initially unreliable, the DD35 was among the last EMD road units built with DC generators and older switchgear, which required more maintenance than later AC/DC equipment. After its early problems were resolved, it proved reasonably successful, though less flexible than smaller locomotives. The original B-units were withdrawn by 1977, while the DD35A remained in service until 1981.

Locomotives and freight cars

The add-on's locomotives include cab lights, front and rear mirrors, warning lights, a train brake, an independent brake, front and rear ditch lights, and air gauges. It also includes these freight cars:

• 40 ft Boxcar
• Flatcar TOFC with four loads
• 100t Hopper
• Grain Hopper
• CA-4 Caboose

Quick Drive and scenarios

The locomotives are compatible with Quick Drive, allowing you to drive them on any Quick Drive-enabled Train Simulator route. The add-on also includes four scenarios for the Sherman Hill route:

• First Day at Work
• The Cabs Have Arrived
• Working in the Rain
• Retirement Day