The model is a replica of the GWR railway at the peak of traffic revenues in 1944; showing 3 miles of track and sidings from Kingswear Station to Britannia Halt. This is where, in that year, American troops embarked for the D-day landings on Utah beach and this historic event is featured on the line.

Trackwork is from the 2mm Scale Association using PCB timbers and bullhead rail with etched chairplates with pointwork using the same method and which are operated by Tortoise point motors. Scenery is primarily constructed to contours formed from ply formers with a ply covering for strength, bonded with cloth and covered with Woodlands Scenics' products. Trees are built up from electric cable, twisted to shape. All buildings are scratch built using either ply or plastic sheet accurately measured to ensure authenticity. Windows are from either printed sheets or etched brass.

Most of the rolling stock is either Graham Farish or Peco with all stock requiring some work to convert them to 2mm/FS scale. The locomotives use Neil Ballantine wheels and other stock are simply replaced with those from the 2mm Scale Association with D.G. Couplings being used on most of the other vehicles.

Multi-pin plugs and sockets are used to link each board to the three operating positions.