Western Diesel Hydraulic Locomotives In Preservation

When British Railways initiated its Modernization Plan in 1955, its Western Region elected to trial locomotive designs with hydraulic transmission whilst BR encouraged designs with electric transmission. The Western Region felt that the lighter weight of 78 tons for a diesel hydraulic locomotive producing 2000 hp, compared to an equivalent weight of 132 tons for a diesel electric locomotive producing 2000 hp, would better meet BR's requirement for a modern locomotive. BR's failure to follow up with its declared policy of having all freight vehicles fitted with brakes saw operators preferring the heavier diesel electric designs which proved more able to operate trains without through brakes at higher speed. The greatest concern was with operating costs whereby the Western Region policy of replacing components at the depot then transferring them to Swindon for repair incurred heavy costs that were reflected in the maintenance cost per locomotive. Given the smaller number of diesel hydraulic locomotives and the larger number of diesel electric locomotives it was little surprise that by the mid-1960s a cost comparison showed that the build and operation of diesel electric locomotives was increasingly cheaper over the long term. Furthermore the increased availability of diesel electric locomotives released by a combination of factors provided an opportunity to replace the diesel hydraulic fleet, which was withdrawn from service during the 1970s. The preservation of redundant locomotives was slow but once it was confirmed, by the preservation of 'Hymek' Class 35 D7017 in 1975, that public appeals could quickly fund the preservation of withdrawn examples further public appeals followed. In a short space of time 31 locomotives from a mixed fleet of 358 locomotives entered preservation to remind both enthusiasts and the public of a concept (i.e. hydraulic transmission) that had had much to offer but had been dismissed on questionable financial grounds.

When British Railways initiated its Modernisation Plan in 1955, its Western Region elected to trial locomotive designs with hydraulic transmission whilst BR encouraged designs with electric transmission. The Western Region felt that the lighter weight of 78 tons for a diesel hydraulic locomotive producing 2000 hp, compared to an equivalent weight of 132 tons for a diesel electric locomotive producing 2000 hp, would better meet BR’s requirement for a modern locomotive. BR’s failure to follow up with its declared policy of having all freight vehicles fitted with brakes saw operators preferring the heavier diesel electric designs which proved more able to operate trains without through brakes at higher speed. The greatest concern was with operating costs whereby the Western Region policy of replacing components at the depot then transferring them to Swindon for repair incurred heavy costs that were reflected in the maintenance cost per locomotive. Given the smaller number of diesel hydraulic locomotives and the larger number of diesel electric locomotives it was little surprise that by the mid-1960s a cost comparison showed that the build and operation of diesel electric locomotives was increasingly cheaper over the long term. Furthermore the increased availability of diesel electric locomotives released by a combination of factors provided an opportunity to replace the diesel hydraulic fleet, which was withdrawn from service during the 1970s. The preservation of redundant locomotives was slow but once it was confirmed, by the preservation of ‘Hymek’ Class 35 D7017 in 1975, that public appeals could quickly fund the preservation of withdrawn examples further public appeals followed. In a short space of time 31 locomotives from a mixed fleet of 358 locomotives entered preservation to remind both enthusiasts and the public of a concept (i.e. hydraulic transmission) that had had much to offer but had been dismissed on questionable financial grounds.

A ride on a steam train is a popular family outing. More than 100 heritage railways cater for that demand, capturing the spirit of nostalgia while preserving the engines and equipment of past days of rail travel. Their interests even extend to the modern era of 1960's - 70's diesels.Those heritage railways themselves have a long pedigree, back to 1951, when a group of enthusiasts saved the Talyllyn Railway in mid-Wales from closure. They ran this railway as volunteers, out of their love of the little trains and a desire to keep it going. Their example was followed by many more preservation societies who preserved and restored branch lines, country lines and industrial lines for our enjoyment now.Six decades have passed, and we are now beginning to realize what an impressive history the heritage railway movement has. This book traces that history, from the humble beginnings the hopes and ambitions of the pioneers on the different railway projects. There were times of failure and frustration, as some fell by the wayside, but others have made it through times of adversity to become the major heritage businesses of today.

This book is a comprehensive history of all the 0-6-0 tender locomotives built by the Great Western Railway or by railways absorbed by the GWR from the very earliest broad gauge engines designed by Daniel Gooch to the Collett 2251 class of the 1930s some of which were still under construction at nationalisation. It includes the Joseph Armstrong ‘Standard Goods’ and the famous Dean Goods, many of which served overseas in the two world wars. The text of 40,000 words describes the design, construction and operation of eight GW and five ‘Absorbed’ broad gauge classes, and thirteen GW and thirteen ‘Absorbed’ standard gauge classes. The book has over 250 black and white and 30 color photos, weight diagrams and drawings.

These locomotives enjoyed striking 'continental' good looks with, strangely, more than a nod to preceding steam design; for this they were regarded fondly by enthusiasts and they earned the somewhat fanciful and inexplicable nickname 'Teddy Bears'.Sadly, performance did not match these fond feelings and as well as proving disappointing technically, the steam age duties for which they were designed were, to BR's consternation, rapidly disappearing.British Railways sold them off after a few years but despite such an unprepossessing - ignominious some might say - career many nevertheless saw many years of work in private industry including, famously, the Channel Tunnel.Remarkably, over a third of the class passed into preservation, an unprecedented proportion and paradoxically they can now be found at work, daily, the length and breadth of the country.