British Railways D7000 Class
Class 35 locomotives are mixed traffic diesel hydraulic locomotives
Class 35 locos are fitted with V16 diesel engines
Class 35 Hymeks have a top speed of 90 mph and maximum tractive effort of 46600 lbf and a continuous tractive effort of 33950 lbf.
Contemporary and Heritage-Preserved, Diesel, Diesel-Electric and Electric Locomotives
Due to their Mekydro-design hydraulic transmission units, Class 35 locomotives became known as the Hymeks.
Class 35 was developed for the Western Region of British Railways, which had opted for lightweight locomotives with hydraulic transmission funded under the British Railways Modernisation Plan of 1955.
One hundred Class 35 locomotives were built between 1961 and 1964 at Beyer Peacock in Manchester.
The Class 35 locomotives suited the need for a medium power diesel-hydraulic design for both secondary passenger work and freight duties ('mixed traffic').
Class 35 were allocated to Bristol Bath Road, Cardiff Canton, and Old Oak Common locomotive depots.
They were all withdrawn from service between 1971 and 1975. Their early withdrawal of Class 35 diesels was caused, primarily, by BR classifying the hydraulic transmission as non-standard despite the fact they were quite successful locomotives!
Unless otherwise stated, all the photographs were taken, mainly at Loughborough, at the Great Central Railway Diesel Gala in September 2017.
Class 35 Hymek diesel hydraulic locomotive D7017 at Loughborough (GCR Diesel Gala, Sept. 2017)
The Class 35 builder, Beyer Peacock (Hymek) Ltd, involved a joint venture between Bristol Siddeley Engines (BSE) (licensed to build Maybach engines), Stone-Platt Industries (licensed to build Mekydro transmissions), and the locomotive manufacturer Beyer, Peacock and Company in Manchester.
Class 35 Hymek D7017 in the shed yard at Loughborough, with the works beyond.
When first built, the Class 35 Hymeks were given a more elaborate livery than many of the contemporary British Railways diesel classes. The main body of the Class 35 Hymek locomotive was the standard dark Brunswick green, but with a lime green stripe along the bottom of the bodywork. The roof was medium grey, and the finishing touch was to paint the window surrounds in ivory white. The final livery variation was BR blue with full yellow ends, the yellow being extended around the cab side windows.
Class 35 diesels were initially employed on secondary passenger services based around Bristol, such as Paddington to Hereford and semi-fast services to the west of England and Wales. When the Class 35 Hymeks had proved themselves more than capable of handling these duties, they were also assigned to express Paddington-Cardiff-Swansea services, displacing King-class steam locomotives. However, these duties were heavier than the Class 35 diesel locomotives were designed for, and the Hymeks were displaced when Western and Brush type 4 locomotives became available to allow accelerated timings.
Class 35 D7017 was built by Beyer Peacock (HYMEK) in Manchester in 1961 (Serial number 7911)
Class 35 Hymek D7017 leaving Loughborough for Leicester (GCR Diesel Gala, Sept. 2017)
Class 35 Hymeks also worked pickup freights throughout the Western Region as a mixed-traffic design and were used heavily on inter-regional passenger services. Class 35 diesel Hymeks were used all over the Western Region on mixed traffic services from secondary passenger and parcels through express freight to ballast trains. Class 35 Hymek diesels were common in all parts of the region from Paddington to Bristol/South Wales/Worcester/Hereford. Class 35s also worked to Birmingham and the West of England, but were rare west of Plymouth.
Hymeks were notably used in multiple (up to three locomotives) as bankers on the Lickey Incline, propelling mainly freight trains from Bromsgrove to Blackwell.
Unfortunately for the Class 35 Hymek diesel-hydraulics, the National Traction Plan of 1967-1968 decreed that designs proving unreliable, expensive to maintain or non-standard should be eliminated as quickly as possible in order to reduce the number of diesel classes from 28 to 15 by the year 1974. The engineering factions of the British Railways Board, the body that oversaw BR's operations from 1962 onwards, felt that all of the Western Region's diesel-hydraulic fleet should be counted as non-standard and should be withdrawn as quickly as possible. Therefore the entire Class 35 Hymek fleet was withdrawn between 1971 and 1975. The Class 35 Hymeks were replaced by Class 37 diesel-electric locomotives made redundant in other regions as a result of a general decline in rail-borne freight traffic throughout the 1960s.
docspics images photos photographs pictures © Dr Phil Brown * Treyn Railway Holidays to France, Italy and Spain from Class 35 HYMEK diesel hydraulic locomotives Booking tickets for Great Railway Journey luxury Rail Trip holidays Train travel in Europe Rail holidays from Class 35 HYMEK diesel hydraulic locomotives to the USA & Canada luxury train through the Rocky Mountain Canadian rail railway holidays through the Rockies US Cities by train from Class 35 HYMEK diesel hydraulic locomotives Continental rail holidays to France Germany Italy Austria Switzerland Glacier Express Treyn Holidays from Class 35 HYMEK diesel hydraulic locomotives from Eurostar to Paris Brussels Avignon Turin Turino Rome Roma Florence Firenze TGV fast trains Railway travel holidays special steam excursions from Class 35 HYMEK diesel hydraulic locomotives great steam heritage line and offers luxury Pullman coach dining trains Class 35 HYMEK diesel hydraulic locomotives Travelling by train always seems a pleasure, especially if through wonderful scenery to Class 35 HYMEK diesel hydraulic locomotives in England, Scotland, Wales or on holiday in the rest of Europe! The railway trip from Class 35 HYMEK diesel hydraulic locomotives involves seeing or travelling behind a 'real' steam locomotive in action and there is nothing like the sight and sounds of a steam train to invoke feelings of nostalgia in some of us to Class 35 HYMEK diesel hydraulic locomotives even more luxury by having a special trip out on a steam dining train! England Scotland Wales Northern Ireland top class hotels in Class 35 HYMEK diesel hydraulic locomotives dining out travel tours top tourist destinations tourist information on Class 35 HYMEK diesel hydraulic locomotives weekend breaks mini-breaks family holidays restaurants touring coach trips from Class 35 HYMEK diesel hydraulic locomotives continental tours cruise ships pleasure cruises summer breaks spring breaks continental winter breaks European winter holidays spring holidays summer holidays European Rail tours Railway travel holidays special steam excursions from Class 35 HYMEK diesel hydraulic locomotives A great steam heritage line and offers luxury Pullman coach dining trains European Rail tours US and Canadian Railway travel holidays special steam excursions to Class 35 HYMEK diesel hydraulic locomotives A great steam heritage line and offers luxury Pullman coach dining trains Travelling by train from Class 35 HYMEK diesel hydraulic locomotives always seems a pleasure, especially if through wonderful scenery either in England, Scotland, Wales or on holiday in the rest of the railways of Europe! The railway trip involves seeing or travelling behind a 'real' steam locomotive or heritage diesel in action on a special trip from Class 35 HYMEK diesel hydraulic locomotives Booking Eurostar Continental Rail Travel Tour Tickets Stuttgart Brussels Eurostar Brussels from Class 35 HYMEK diesel hydraulic locomotives by TGV to Ebbsfleet International, Ashford International Stratford International, St Pancras International Paris Gare du Nord Paris Gare de Lyon Paris Gare de L'est Paris Gare Montparnasse by Eurostar from Class 35 HYMEK diesel hydraulic locomotives London to Paris, Eurostar London - Brussels Eurostar London to Lille deals bargain city breaks Great Railway Journey holidays in Italy, Spain and France by TGV booking from Class 35 HYMEK diesel hydraulic locomotives
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