SOUTH DEVON MODEL RAILWAY SOCIETY

                         

Salterton - OO Gauge.

This is only the club's second OO layout since we moved to our current clubroom. It was designed to be better in every respect from the previous layout which had evolved over many years and had been changed many times.



The Station Throat An express awaits departure

Design

The layout has many layers and this will keep us busy for many years to come without the need to change the rest of the layout. Each layer will be built in order and, as the whole trackplan has been designed on computer, each section can be built to allow for the next piece to fit in without alteration. This also helped with the construction as we did not have room to build the new layout with the old one in place so the new one was designed and each piece cut out and stored in the clubroom. Once all of the pieces had been cut out the old layout was removed and construction of the new one could begin.

Construction

The layout has been made using 12mm plywood for the main structure with 6 & 9mm plywood for some of the gradient sections and curves. The whole of the main layout was built, the track laid and wired in less than 12 months. The photos show the layout as it progressed. The boards have been designed so that all of the joints overlap to add strength and to try to stop the joints in the boards separating and causing jumps in the track.

Location

The layout is completely fictitious and is based somewhere near Salisbury on the London & South Western Railway (LSWR) main line with links to the Somerset & Dorset Joint Railway (S&DJR) from a junction near Templecombe and the Great Western Railway from Westbury. This allows us to run an interesting mix of trains, mostly Southern Region with some Western and some cross country services from the S&D line.

Track

The track is code 100 Peco streamline with electrofrog points on the main layout as we have to cater for a wide range of wheel standards. However, the high level terminus will be code 75 and as a result some stock may have to be banned from running over this section. We have tried to use only large radius and curved points on the main line with some medium radius points on the branch and in the fiddle yard. We have also fitted Peco microswitches to all of the point motors to provide an indication on the control panel how each point is set. The spare set of contacts have been used to provide power to the frog to give extra reliability.

Layout

The layout has two main circuits which are on the level, with two relief lines dropping down underneath to the 12 road fiddle yard via 1 in 30-40 gradients. The uphill gradients are a little flatter ranging from 1 in 84 1 in 45. This does mean that some engines need assistance to haul large trains out of the fiddle yard, especially with heavy coaches. The Engine shed is at a lower level at the front of the layout with an underpass to the up main line so that engines can be crossed over without having to stop the whole layout.

Stock

Like most clubs all of the stock is owned by the members, and a very wide variety of regions and eras are represented, from 1900s GWR to Virgin Pendolinos.

Any member's stock is allowed to run on the layout at club meetings but at open days the stock is restricted to 1950s & 60s BR steam and Diesels. The majority of members have stock that fits this period, with Southern, Western, Midland and Eastern regions being modelled.