Information for Exhibition Managers


The layout is based on part of an engine terminal (MPD) on the Union Pacific (Wyoming , USA), in the late 1950s with a  turntable and  part of a large roundhouse: Big Boys in their final years, and the early days of Diesels and Gas Turbines.


American O-scale (1:48 – 1/4″/ft, 32mm gauge)


In the hot summers of 1957 & 58, the Big Boys were brought out of store for their final moment of glory pulling massive trains from the Californian fruit harvest east over Sherman Hill between Laramie and Cheyenne in Wyoming. This layout aims to capture what it was like fuelling, watering and turning these monster beasts for this 50 mile each way shuttle.


12ft x 3ft 6ins (3650 x 1050mm) – see attached plan.

Track height = 54” (1400mm)

IMPORTANT: This layout is PENINSULA in style so is intended to be viewed from THREE sides – two sides and one end.

On the plus side this means it provides ALOT of viewing space (over 20ft) for a small layout with only 3 operators, but it does make it a challenge for exhibition floor plan designers!

PLEASE NOTE: Siting this layout in the normal ‘view from one side’ way will seriously reduce its visual impact!

See below for siting suggestions.

This layout also needs a single 13A mains supply (current draw <3amps) and a 6ft x 2ft table for stock maintenance


This layout is transportable in an estate car so expenses are fuel costs + accommodation:

2 operators

1-2 cars

Siting suggestions:

  • Against a wall (with other exhibitors/traders either side):

 Laramie Engine Terminal Against a Wall

  • As part of an island:

Laramie Engine Terminal Part of an Island

  • In an island on its own:

Laramie Engine Terminal Island

This guidance is available as a PDF – if interested, please leave a comment and a copy will be emailed to you.

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