BR Mk1 BSO Brown

BR Mk1 BSO Brown

British Rail Mark One Coaches

The ubiquitous Mark One coach is instantly recognisable to those familiar with the British railway scene over the last 50 or so years. A train of these is as much a symbol of the 1960s and 70s as the HST became during the 1980s and 90s.

On nationalisation in 1948, British Railways inherited a mixed bag of rolling stock from the 'Big Four' private companies. Little new stock had been constructed during World War II and the existing fleet had been run into the ground. A new design of standard coach was therefore conceived and the first production Mark One appeared in 1951.

The subsequent build period lasted into the early 1960s. In addition to a wide range of passenger seating coaches a number of suburban, catering, sleeping and non-passenger (e.g. parcels) coaches were also constructed. The design additionally formed the basis for much of the multiple unit stock built during the same period.

Following the introduction of more modern Mark 2 and later Mark 3 stock in the 1970s the Mark Ones were still to be found across the UK, particularly on cross country services, relief trains and other secondary services. However during the 1980s the winds of change (ultimately ending in privatisation of the infrastructure and train operating companies) started to sweep through the British railway network.

The Inter City service managers increasingly profit motivated focused on a core network of services operated by fixed formation. They did not want the high costs of maintaining resources for occasional relief or seasonal extra trains. Pricing policy or subtle timetable changes were used to try and regulate supply and demand. In many cases it was simply just accepted at the busiest times passengers would have to put up without a seat – even on a 3 or 4-hour journey. The Provincial service managers of the day were even more anxious to cut costs. In a climate of decreasing subsidies they saw the reduction and ultimately elimination of loco hauled workings as essential. A massive build programme of second generation DMU’s was undertaken (Sprinters and the unloved Pacers), even though in many cases this led to trains of 5 or 6 loco hauled coaches being replaced by a cramped multiple unit – not just for short journeys either.

This was the beginning of the end for the Mark One coach, though they held out until the early 1990s on some of the London commuter runs (notably the London Euston to Northampton 'Cobblers' and Western Region Paddington to Oxford and Thames Valley services). Eventually these services too succumbed to modernisation and replacement by fixed formation multiple units.

To be fair by the late eighties and early nineties many of the Mark One coaches were becoming life expired as were the locomotives which hauled them. The use of asbestos materials during construction – acceptable in the 1950s – posed a serious hazard in the more safety conscious modern age. At today's prices the cost of replacement like for like would have been prohibitively expensive. Old fossils such as myself may regret the passing of traditional hauled trains but there is no doubt the cost effectiveness and ease of utilisation of the new trains has grown the business on many routes and perhaps even saved some from closure.

However the Mark One can still be found in service. Several private charter companies still have rakes available for main line use – often refurbished to a high standard. Most of the standard gauge preserved lines in the UK use the Mark One as their basic passenger vehicle. Indeed a visit to such a railway can now be just as rewarding for the chance to travel in heritage rolling stock as for the classic steam or diesel loco hauling it.

The basic Mark One design called for all steel construction with a separate body mounted on a welded underframe. Standard length was 64ft 6in over the body (66ft 6in over gangway connections). Non passenger carrying coaches had a standard length of 57ft 6in. Vacuum brakes and steam heating were fitted as standard though later batches were fitte

BR Mk1 BSO Brown
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