This content requires the base game Train Simulator 2019 on Steam in order to play.

## About This Content
The Union Pacific Railroad’s Big Boy 4-8-8-4 steam locomotive is undoubtedly
the beast of American railroading history, and this epitome of heavy haulage
is now available for Train Simulator with a number of challenging scenarios
for the Sherman Hill route.

In the early 1940s, Union Pacific Railroad (UP) sought to build a locomotive
capable of hauling heavy freight trains across Wyoming without the need for
double heading and helper operations over the 1.55% gradient of Sherman Hill
and the Wasatch mountain region. Adaptations of the previous Challenger Class
locomotives showed that larger fireboxes, longer boilers and more driving
wheels achieved their aims. What followed was the monster Big Boy with its
articulated wheel configuration, huge water tank and 68in (173cm) driving
wheels.

In 1941, Alco Locomotive Works delivered 20 Big Boys and another five were put
into service in 1944. Although rarely run at such a speed, the Big Boy was
capable of an 80mph top speed and towards the end of their life were regularly
hauling more than 4,000 tons up the Wasatch gradient unassisted. The last
revenue service by a Big Boy was in July 1959 and eight of the original 25
locomotives have been preserved in the USA.

The Union Pacific Big Boy V2.0 is available for Train Simulator in the famous
UP black livery with accurate locomotive simulation, detailed cab interior,
full TSX effects, and new smoke and steam particle emitters.

The Sherman Hills Add-On (available separately) is required to play the
scenarios included with this Add-On.
## Scenarios

Five scenarios for the Sherman Hill route:

* Big Boy Introduction
* Big Boy Local Work Granite to Cheyenne
* Big Boy on Sherman Hill Part 1
* Big Boy on Sherman Hill Part 2
* Big Boy working Laramie Cement
More scenarios are available on Steam Workshop online and in-game. Train
Simulator’s Steam Workshop scenarios are free and easy to download, adding
many more hours of exciting gameplay. With scenarios being added daily, why
don’t you check it out now!

Click here for Steam Workshop scenarios.
## Key Features

* Union Pacific Big Boy in UP black livery
* Fully detailed cab interior with working gauges, levers and dials, with new textures
* Enhanced TSX effects, smoke and steam particle emitters
* Quick Drive compatible

Train Simulator: Union Pacific Big Boy Loco Add-On