Diamonds Were Forever

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The Great Western Railway had, since its inception been the loner amongst the rai1ways of this country. Beginning with its adoption of Brunel’s broad gauge in the early nineteenth century, this tradition of individuality was carried on beyond the nationalisation of the railways in 1948 to the introduction on the Western Region ten years later of he first main-line diesel hydraulic locomotives. Ostensibly the idea was to assess the relative merits and demerits of the hydraulic transmission as compared with the electric variety. The diesel types with hydraulic transmission were restricted entirely to the Western Region; perhaps the ghost of Brunel and his advocates had something to do with this! Nevertheless, with the implementation of the National Traction Plan in 1967, the D600 class “Warships” days were numbered. But they deserve their place in the story of diesel traction on Britain’s railways, marking as they do, a milestone in the history of motive power development in this country.

D600 on test run - no number

Brand new, straight out of the box – an unnumbered “Warship” on a proving run from the North British Loco Co works.

Five locomotives of this type were ordered from the North British Locomotive Company in November 1955, eventually to become Western Region “Warships” numbers D600 to D604. These locomotives were built under the pilot scheme of the British Transport Commission’s Modernisation and Re-equipment programme for the rai1ways. It was proposed under this scheme to introduce specific types of diesel locomotives in four broad power groups, and to subject them to a period of intensive trials in order to evaluate the advantages and disadvantages of each type.

This was, however, not to be, and shortly after the programme was launched a re-appraisal was carried out, following which, bulk orders were placed with contractors, in many cases hardly even before the first of the prototypes were outshopped. Some of these proved their worth, but not until after much re-work of major components, including for the many engines fitted to the Brush-Sulzer Type 4 locomotives was undertaken.

Back to the Pilot Scheme orders, the North British Company delivered the first locomotive of the D600 class in 1958.  These “Warship” class locomotives were powered by Anglo-German engines – two N.B.L./M.A.N. L12V 18/21S to be precise – each with a continuous output rating of 1000hp, at an engine speed of 1445 rpm. This placed the design in the category of locomotives with high-speed engines – another area for comparison and trials under the Pilot scheme – with many others sporting medium speed engines.

They were carried in a full width body over two three-axle bogies, and the central axle of each bogie was ‘free, with the engines driving the axles through a Voith/North British L306R hydraulic transmission. This was denoted as the A1A-A1A wheel arrangement, which could to a degree be seen as a disadvantage when it came to getting sufficient power to the wheels to start and haul a train.

When I first penned this article, I wrote:

“Contrary to popular opinion, diesel locomotives are not merely tin boxes on wheels, belching forth voluminous clouds of noxious fumes; these locomotives even had mainframes!”

The mainframe part of that comment was clearly true, but with the benefit of hindsight, the “clouds of noxious fumes” was a bit much. But this was at a time when you could see the pollution of steam trains, but we were yet to become more aware of the hidden dangers of the diesel exhaust.

D600 diagramStructural Details

The underframe was built up from mild steel plate and sections, covered with steel plate forming a continuous floor. The double plate frame 
bogies were fabricated from 7/16 in. thick plates, with cross-stretchers
and headstocks riveted to the side members. Double swing link bolsters provided support for the weight of the whole of the locomotive and
its contents. These were in turn fitted with four bearing pads on each bogie, with the final drive gear train, and wheels and axles fitted with “Timken” roller bearing axleboxes with a wheelbase of 15ft equally divided. The driven wheels were 3ft.7ins. in diameter, whilst the centre pair were 3ft. 3 ½ ins.

Dimensions

At least one item that stands out in the list of particulars given is the weight of the locomotive.

At over 117 tons, these were really heavy machines, especially when compared with designs that appeared less than a decade later, and typically delivered around 2800 h p, for less than 100 tons of locomotive. This power-weight challenge faced by the first “Warships” stands out even more when compared with the D800 series of Locomotives, which for the same power weighed a mere
 78 tons. Nearly 40 tons less! The D600’ s were certainly very solidly bui1t!

D600 NBL-MAN Engine

The NBL/MAN V12 engine on a stand, waiting to be installed in the locomotive. One of the earliest high-speed diesels, but it did prove to be less reliable in service than hoped, and BR had adopted medium speed designs for the majority of locomotives.

Theory has it (or possibly had it, theories may have changed!) that the less
 of its own weight a locomotive has to haul, the greater the weight of the train that can be hauled, for the same engine power. With a power/weight ratio of 17.1 hp/ton this certainly compares unfavourably with the D800 series, which for the same power had a power/weight ratio of slightly more than
 25.6 hp/ton. A further comparison with the most recent freight locomotives in use on Britain’s rail network – the Class 70 – shows that they have a power to weight ratio of over 29hp/ton.

The pressure charged NBL/MAN 12 cylinder ‘vee’ engines were flexibly mounted on fabricated steel section underframes, which was intended to mitigate stress placed on the engine from shock loading under accelerating and braking conditions. The engine crankcase and cylinder blocks were built up from steel plate, the former incorporating cast steel bulkheads carrying the main bearing housings, the crankshafts being hardened and ground alloy steel forgings.

D600 bogie

A bogie being assembled in the works of the North British Loco Co

The hydraulic transmission installed by Voith/NBL included three separate torque converters, each of which was designed to cover three separate speed ranges, with each one arranged to take over at the appropriate road speed automatically.  The final drive to the outer axles on each bogie was completed through a pair of Hardy Spicer cardan shafts.

Braking equipment was provided by Westinghouse air brakes for the locomotive, with four brake cylinders (10ins x 8ins) on each bogie operating clasp brakes to each wheel. A separate air brake handle was provided, which operated the locomotive brakes only, whilst a proportional valve ensured that application of the train vacuum brake gave a proportionate application of the locomotive’s air brake.

Also noted in the list of particulars is a water tank having a capacity for 1000 gallons of water. The reason for this was that since the locomotive were introduced at a time when only steam heating of locomotive hauled stock was available, all diesel Locomotives designed under the modernisation plan were provided with steam heating boilers. In this case they were “Spanner” boilers, operating at a pressure of 80lbs/sq.in. This latter item contributed a great deal to early diesel types weight, and occupied a not inconsiderable amount of space.

D600 Cab and nose

In an attempt to reduce the overall weight, the cab and nose of the “Warships” was constructed from lightweight aluminium sheet and sections.

Another feature that added greatly to the weight, particularly in this case, was the use of heavy steel fabricated construction techniques. The British Transport Commission’s insistence on using thicker plate than necessary was the principal reason for using these techniques, resulting in a sturdy but unnecessarily heavy structure. This was also the first product from the North British Loco. Co. for the home market, other than shunting types previously built. As such, no doubt there was some experimentation in the design of such a totally new locomotive type to the British railway scene.

External design was left to the manufacturer, and as a result the locomotive types produced under the ‘Pilot Scheme’ all differed in appearance, and unlike the range of ‘Standard’ steam locomotives there was no ‘family likeness’. The D600 series ‘Warships’ were perhaps one of the more attractive designs. The stressed skin framework of the bodysides was punctuated with a honeycomb of grilles, covering the various vents 
and air intake points.

NBL Advert

NBL’s advert in the 1958/59 railway official’s directory, with the D600 series shown in the top sketch.

In addition to the doors providing entry to the driving cabs at either end, windowed access doors were provided
adjacent to the engine compartments, and sections of the roof were made detachable for installation and removal of equipment. The cabs themselves were provided with two large flat windscreens, each having independently operated wipers.

It should be noted here that the majority of diesel types introduced at that time had three windscreens. In fact, apart from the ‘Deltics’, the twin windscreen arrangement was for a long time restricted entirely to the Western Region’s diesel-hydraulics. Another feature peculiar to the ‘Pilot Scheme’ types, was the provision in each nose end of a flexible bellows connection, for use when through passage was required between locomotives when worked in multiple.

Two fans mounted in the roof were arranged to draw cooling air through the twin bank ‘Serck’ radiators mounted just to the rear of each cab. A third grille, positioned mid-way along the roof, served as an engine room vent. The only other apertures were the exhaust outlets, and the output from the ‘Napier’ pressure charger.

Since the train classification headcode panels were not introduced until I962, these “Warships” were provided with train classification discs, and head/tail lamp brackets, as per the then standard steam traction practice. Twin air-operated warning horns were provided in each nose end. Standard side buffers and screw coupling draw-gear were also fitted at each end. Other nose connections were provided for vacuum brake and steam heating pipes, and jumper sockets for control connections when worked in multiple.

Numbering and livery

This series of locomotives, as already mentioned, was ordered from the North British Locomotive Co. at the time of introduction of the re-equipment programme, on I6th November I955. Delivery was due to take place fifteen months after the order was placed, which should have been completed by late I957. As often happened, delays in delivery caused their introduction to be put back to 1958.

A list of numbers, names and building dates is given below:

Numbers & Names

Livery styles for British Railways diesel locomotive Livery
prior to I956 followed basically that scheme applied to the former LMSR diesel-electric units 10000/10001 – black with aluminium lining and raised numerals. Bogie sideframes and sundry details were also picked out in aluminium. Commensurate perhaps with the new era about to begin, all new diesel locomotives were turned out in the new ‘standard’ green livery. This was applied to the nose, body side panels, and that section of the roof extending over each cab and the entrance doors. The roof was medium grey between cantrails. The bogie and underframe details were black, with buffer stocks and the beam itself in the vicinity of the coupling hook picked out in red.   Handrails and the aluminium beadings to the cab windows, windscreens and warning horn mountings were bright polished. Nameplates and the new style B.R. crests were carried on the lower and upper bodysides respectively, and on the same centreline between the engine room access doors on either side. The nameplates themselves were similar to ex GWR locomotive nameplates; cast in brass with raised lettering on a red background.

NRM_D601_Ark_Royal_nameplate

The nameplate of D601 Ark Royal on display at the National Railway Museum. This was the original style, but if a member of the class was painted ‘Rail Blue’, the background was changed to black.            Photo: Geof Sheppard – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=9680512

The scheme of numbering diesel locomotives introduced at this time, including the use of the prefix ‘D’, was developed in order to avoid any confusion which might have arisen using six figure unit numbers. Also it was considered desirable to allocate a block of numbers to individual classes or types, and the problems were thus overcome by use of the ‘D’ prefix. The unit numbers for the D600 series were Gill San transfers applied to the cabsides, under each of the four droplights. Directly under each number, were the North British works plates, and the WR route restriction colour discs, which in this case were single red. They were of course already scrapped when British Rail introduced the TOPS renumbering, which had been first been considered by BR in 1968, following work done in the USA by IBM and the Southern Pacific Railroad. The system was purchased by BR – including the source code – together with an IBM System 360 mainframe computer, and its implementation was supported by Southern Pacific personnel.

Lens of Sutton D600 'Warship'

D600 “Active” on one of the class’s main roles, hauling expresses over the South Devon Banks. A key service for a short time was the “Cornish Riviera Express”.                           Photo: Lens of Sutton/RPBradley Collection

The oddest aspect for the North British Warships was perhaps that they were allocated the new classification – Class 41 – but which was never carried.

In later years, ½ and full height yellow warning panels were applied, which did nothing for their appearance, and the same might be said of the ubiquitous ‘Rail Blue’ livery, and the double arrow symbol seen on D600 whilst awaiting the breakers torch at Barry. Headcode boxes had also been fitted in their mid to late years, since in 1960, the train class, route and reporting number were combined into a single four character display. So, the old style discs were dispensed with and all new locos built after that were fitted with a roller-blind display that could display the full reporting number. Of course this meant for some – such as the North British “Warships” a pair of two character boxes were fitted to either side of the loco front.

Performance


These locomotives were the first 2000hp main line types to be placed in service on the Western Region, and were intended for express Passenger and other top link duties. A demonstration run on Monday I7th February I958 was made by No.D600, hauling a nine coach train from Paddington to Bristol and back. It is interesting to note, in connection with this run, that in order to demonstrate the locomotive’s ability, on the return journey from Bristol, soon after leaving, one of the engines
was shut down, and the remainder of the trip completed on a single engine.

The first regular top link passenger work for the class commenced in June I958, with the ‘Cornish Riviera’ express. Also during this month, a series of comparative tests was made, with the second of the class D60I, and various classes of 4-6-0 steam locomotives. The trials took place between Newton Abbot and Plymouth. It was thought that summer Saturday services in particular would need piloting over this route, and since there would not be enough diesel locomotives available double heading trials were carried out with steam locomotives in order to determine optimum loads and timings over this route. Unfortunately for the North British “Warships”, the D8XX series Swindon “Warships” was appearing in ever increasing numbers.

EPSON scanner image

‘Warship’ Diesel-hydraulic at Reading (General) on an Up express, looking west towards Reading West Junction, Swindon, Bristol, Taunton and the West; ex-Great Western main lines from Paddington. The train, running through on the Up Slow line, is the Summer 08.15 Perranporth – Paddington, headed by 2,000 hp Type 4 A1A-A1A ‘Warship’ No. D600 ‘Active’                                     Photo: Ben Brooksbank, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=15149523

This fact, coupled with somewhat varied standards of engine performance, notwithstanding a lack of confidence by maintenance staff in their reliability, gradually forced this class out of the principal duties. The overall performance of the first two, D600-1 was rather better than D602-4. This difference has been attributed largely to the fact that the engines for the first two were actually built in Germany, whereas North British made those for D602-4 under licence. No doubt, there is more than an element of truth in that statement, but perhaps it could also explain the reason for the long gap between the delivery of D600/1, and D602-4.

North_British_Type_4_D601_(8392564224)

A sad end for this pioneering class of diesel locomotives – here D601 “Ark Royal”, and an unidentified sister, are seen at Woodham’s Barry scrapyard in October 1968. The second loco is in rail blue, complete with full yellow ends, and the double arrow symbol, whilst D601 still retains green livery and ½ height warning panels. Both have been transformed with the roller blind headcode boxes stuck to the nose.                                                                 Photo: Hugh Llewelyn – D601Uploaded by Oxyman, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=24382933

All five were based for the most part, at Plymouth Laira
 depot, and in their latter years restricted entirely to Cornwall. In 1967 their demise was foreshadowed by the implementation of the National Traction Plan. With this scheme, it was proposed to ‘phase out’ classes of locomotive coming under one of the following three headings:

  1. Elimination of types that had given trouble
  2. Those having excessive maintenance cost
  3. Those classes of low numerical strength

Once again, unfortunately these “Warships” came under all three headings. In 1967 they were transferred to South Wales for a short time, working mineral trains, in place of English Electric type 3’s. This proved to be their final duty, since they were returned to Laira in December 1967 for withdrawal. In July 1968, after being stored for seven months, D600/1 were sold to Woodhams, of Barry and D602-4 to Cashmeres at Newport for scrap.

Sadly, despite its pioneering status, not one of this class of diesel-hydraulic locomotives was rescued for preservation – although the nameplate of D601 “Ark Royal” survives in the NRM at York. But, hydraulic transmission was not a complete failure for BR, since the second “Warship” class locomotives, the Class 42, were very successful, and in turn, they were followed by a final design, the Class 52 “Western” series. But by the time these appeared, the decision to use diesels engines with electric transmission had been made, and these too were to suffer a similar fate to the diesel-hydraulic pioneers.

Useful Links & References

  • “Diesel-Hydraulic Locomotives of the Western Region”;  Brian Reed, pub; David & Charles 1974; ISBN 0715367692
  • “Diesels Western Style”;  Keith Montague; Pub; Oxford Pub. Co. 1974; ISBN 0902888390
  • “Giants of Steam – Story of the North British Locomotive Co.”;  Rodger Bradley; Pub; Oxford Pub. Co., 1995; ISBN; 0860935051

 

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BR Regional Magazines

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I was fortunate to have a Grandfather who drove steam engines, right through from pre-Grouping to British Railways days, and was the beneficiary of numerous copies of the BR London Midland Region magazine – avidly read when I was on holiday.  Obviously, many of the stories related to people, locations, and some new technology developments – locomotives, new stations, new lines, and a gardening section.

Each area, and region of course had their own sports teams, first aid teams, amateur dramatics sections, and individuals who had built models from matchsticks, or replicas of main line steam locomotives in miniature.  There were the retirements, and trbutes to the people who built and ran the railways in the past, and those who worked on the permanent way, maintaining its safety, and keeping the trains running.  The extent and variety of activities and events reported were enormous, with reflections on the past in equal measure to the changes then taking place.

One interesting series of items that appeared in the 1950s was John Drayton’s  “Illustrated Rules”, which took specific rules, and with the aid of a cartoon illustration provided a simplified explanation of how they were applied.  Sometimes they were very serious, and sometimes the cartoon might show some of those railwaymen who knew it was OK to hang off the footsteps on a moving loco – like this one:

Drayton0015

Rule 118 in the 1950 rule book does indeed state:

“Staff riding on engines or vehicles, or when on the ground alongside vehicles, at converging points in sidings, must take special care that there is sufficient clearance for their safety”

Or this one about the emission of smoke and steam from engines – Rule 126 (v):

“arrange the fire so as to avoid any unnecessary emission of smoke particularly whilst standing at or passing stations, and prevent blowing off steam at safety valves as far as possible”

Drayton0018

 

But not everything John Drayton sketched was about the rule book, he offered some interesting drawings about new technology too:

Drayton0035Drayton0036Drayton0037

Of course, the LM Region Magazine covered new loco builds – like this one – the Crosti boilered 9F 2-10-0s, which were very much a non-standard design of British Railways Standard steam locomotive designs.  This was the story the magazine carried in July 1955 of the Crewe built locomotives.

Franco-Crosti

I’ll post some more of John Drayton’s sketches, and others in future posts.

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The Last British Diesel

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It may be a controversial observation, but the Brush designed Class 60 heavy freight locomotive was the last genuinely British built diesel-electric type. The locomotive was considered initially as a replacement for English Electric’s ageing Class 37 design – but with British Rail sectorisation, and the changed Railfreight priorities, a different approach was needed.

60_015_Bow_Fell

60015 Bow Fell in Railfreight grey livery with Transrail branding hauling a freight train through Cardiff General in 1996.         Photo: Murgatroyd49 – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=78385895 

In the late 1980s, a private company, contracted to haul mineral trains ordered and brought to the UK, the 2-stroke General Motors Class 59 – it was of course Foster Yeoman. The design and operation of this locomotive was a success, but it was for a niche market, although it brought some innovative ideas in its use of technology.

Before their arrival, BR had produced its main line locomotive renewal programme, within which it was stated that 750 new freight diesels would be needed of between 750 and 2,500hp, with delivery from 1990 onwards. BR also stated it would not place orders of less than 100 locos at a time, to ensure continuity of production, and rolling replacement of older designs.

Class_60_Beeston

Class 60 passing through Beeston station in April 2007.                                                                 Photo: Zverzia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3063590

Unlike the Class 58, BR’s last heavy haul locomotive design returned to the Brush monocoque, load bearing mechanical structure – this was the company’s ‘traditional’ approach – where the Class 58 was essentially a couple of longitudinal girders with a body and power equipment ‘on deck’.

Nottingham_-_DB_Cargo_60100_with_oil_tanks

A train of empty oil tanks heads through Nottingham in 2016 behind the last of the class No. 60100, in DB Schenker / DB Cargo colours. They are on the way from Kingsbury in the West Midlands to an oil refinery on Humberside.         Photo: Geof Sheppard – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=53982372

Consultants Jones Garrard, who had been involved with the styling of the class 442 “Wessex Electrics”, undertook the design of the class 60, and provided a couple of alternatives. Mock-ups were provided of both varieties, inspected by Railfreight personnel and the B.R. Design Panel, and after deliberation, the style with a positive rake to the front end was chosen. The end result was a locomotive who’s appearance bore more than a passing resemblance to the ubiquitous Brush Type 4 / BR Class 47.

This was Britain’s last truly home produced – designed and built – diesel locomotive design, and represents a fitting end to the British Rail freight chapter.

Useful Links & References:

  • Railway Industry Association (RIA)
  • DB Cargo UK
  • GB Railfreight
  • DC Rail
  • “True Brit – Class 60 in Close Up” by Roger Ford (Modern Railways – March 1989)
  • Rail Freight (House of Commons Library Briefing Paper) Number SN151, 12 December 2016; By Louise Butcher
  • Railways: privatisation, 1987-1996 (House of Commons Library Briefing Note) SN/BT/1157
18 March 2010
; By Louise Butcher

Class 60 Videos

Click on the image below for more …..

Class 60 Cover

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60 Years of AC Electrics

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60 years ago on the 27th Nov
ember 1959, Britain’s pioneer 25Kv A.C. electric locomotive was officially handed over to British Railways. Then numbered E3001, it 
was to be the first of a long series of successful 
locomotive designs for the West Coast Main
Line (WCML). Within this series there have
 come to be seven basic designs, and a number of sub-divisions of the classes ALl to AL7. Although the last of these was never actually
 introduced under the old title of AL7, but
 designated Class 87 with the new “TOPS”
 locomotive codes, the family likeness remains
 very strong despite the detail alterations to the appearance of the latest type.

AEI_4Under the Modernisation Plan proposals it was decided that two types of locomotive – ‘A’ and ‘B’ – would be required. These were for mixed traffic, and freight service, respectively, with an equal number of both types needed, with their different haulage characteristics. This was not how things turned out, with the slower progress in the adoption of continuous brakes on freight trains, only five of the first 100 locomotives were type ‘B’, freight types. Metropolitan Vickers and BTH (as AEI), and English Electric were the builders of this entirely new breed of motive power, with mechanical portions of some constructed at BR’s Doncaster Works, and the North British Loco Co., in Glasgow.

86433 and 87034 at Carlisle 1980sIn 30 years, the UK railway industry, together with British Rail’s workshops had provided innovation, specialist technical, design and manufacturing skills that delivered the high-speed rail network, with the East and West Coast Main Line routes as their backbone.

91005 passing Carstairs 1995“Electra” was in effect the final gestation of the first, second and third-generation a.c. locomotive designs to be operated by British Rail, and whilst the ultimate high-speed passenger train, the APT never materialised, it did give rise to the “Pendolino” tilting trains.

Click on the image below for a longer read ….

60 Year cover image

Useful Links

Wikipedia Pages:

Class 80 Class 81 Class 82
Class 83 Class 84 Class 85
Class 86 Class 87 Class 89
Class 90 Class 91

General Information

The AC Electric Locomotive Group English Electric Co. – Grace’s Guide
Class 90 Electric Loco Group Metro-Cammell Ltd
Associated Electrical Industries (AEI) – Grace’s Guide British Rail Engineering Ltd – Science Museum

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Britannia Rules The Rails

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Sometimes, it just has to be done.  Back in 1951, British Railways unveiled its brand new steam locomotive, at the same time as the Festival of Britain was showcasing the country’s capabilities, and the author also appeared!  This class of steam locomotive broke many of the traditional design and building rules of the old ‘Big Four’ companies, and these were especially noticeable in its appearance.

Light_engine_(3319833486)

The now preserved 70013 Oliver Cromwell heading light engine backwards to Cardiff to get coal and water.                       Photo: Ben Salter CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=22446886

Gone were the days of hiding the workings away from public gaze – and the dificulties faced by crew and maintenance fitters in day to day oiling and repairs.  These were intended to be the most efficient, modernising locomotives, and brught together the best aspects of railway engineering that the UK could muster.  At least that was the plan.

“The object of the designer has been to make these standard engines easy to build, easy to maintain, and easy to repair. Many of the parts and fittings are interchangeable between the six types being built in 1951 so that spares tall be kept to a minimum.”

As a classic design, the BR Standard Britannia pacific was the pinnacle of steam locomotive development in Britain. At least, that argument could be held true for the mixed traffic design. Clearly, in other more specialist categories – express passenger, freight, etc. – the argument may be much more tenuous. Quite apart from statements from the Railway Executive in 1951, the new standard range of locomotives for British Railways embodied many of the most up to date characteristics of 20th century British locomotive design. In truth, it also sought to include some rather more international features, especially some aspects that were derived from Continental European and North American practices.

Click on the image below to read on:

Booklet cover

Read on ….

Some useful & interesting links

BRSTD - web page

http://www.iconsofsteam.com/locos/britannia/story/

http://www.royalscot.org.uk – preserved locomotive 70000 “Britannia”

 

 

 

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North American Steam

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As is well known, steam power was invented and developed in Britain country for both stationary and locomotive purposes. Its introduction and use in the United States very likely came about as a result of illegal activity here in England. At around the end of the 18th and beginning of the 19th century, it was deemed an offence by ·the government of the day to transmit any information about the development or use of steam power to North America. In fact it was punishable by a one-year prison sentence in addition to a £200 fine! But, evidently news of James Watt’s success was transported across the Atlantic it would appear that industrial espionage is not a modern phenomena!

The first practical use of steam power, as applied to railways, in the USA, was first witnessed in the shape of locomotives imported from England by the Delaware & Hudson Canal Co., which operated a sixteen-mile horse and gravity operated coal railway in Pennsylvania. The first steam locomotive to run in the USA was in fact the English built “Stourbridge Lion”.

Replica Stourbridge Lion - United_States_National_Museum_(1956)_(14781532311)

A replica of the first steam loco to run in the USA – built in 1932 by the Delaware & Hudson Corp.   Photo: Internet Archive Book Images https://commons.wikimedia.org/w/index.php?curid=43475790 

Best friend

Built at West Point Foundry, the “Best Friend of Charleston” was the first home built steam loco for a US railroad. Photo courtesy Norfolk Southern Corp.

The first American built locomotive to be operated by an American railroad, was built at the West Point Foundry in 1830 and made its inaugural run for the South Carolina Canal and Railroad Co. of Charleston, on Christmas Day 1830. The locomotive was appropriately named the “Best Friend Of Charleston”. In appearance it hardly resembled a steam locomotive as we know it at all, powered by a vertical boiler positioned behind the driver, driving four coupled wheels it was not entirely dissimilar to the rather less successful “Novelty” locomotive, entered for the Rainhill Trials in England the previous year. But, it was a beginning, from which the North American steam locomotive was developed, ultimately to produce some of the World’s largest and most powerful steam locomotives ever to be built.
 In the early years of railway development, steam locomotive design in the USA progressed along similar lines to that of their European counterparts.

But then, there came to be a number of what at first could be seen as small, technical differences, providing a divergent path along which North American loco. design progressed. One of the principal foundations to this alternative to the British school of design, was the predominant use of bar frames as the principal technique of chassis construction, whereas in Britain, plate frames were the preferred method. Although bar frame techniques were actually first Introduced in the U.K. by Edward Bury, their development in the USA resulted ultimately in the use of techniques for manufacturing the chassis or frames of steam locomotives as enormous one piece castings. In many cases with cylinders and ancillary items of equipment ”cast on”. Style, an arbitrary idea in itself, was possibly the one most obvious difference between North American and British types.

North American 2 copy

The first cantilever trestle bridge in the USA, carrying the Cincinatti Southern Railroad across the Kentucky River, with a typical passenger train of the period. The “High Bridge” was opened in 1877, and rebuilt in 1911 – this view is of the original bridge. Photo courtesy Norfolk Southern Corp./RPB Collection.

Whereas in this country designers placed great emphasis on the aesthetic appeal of their machines, the era of elaborate ostentation in the USA reached a peak in the 1860s and. 70s. These then gave way to more logical concepts of the steam locomotive as a machine, where it was not a sin to trail pipework and fittings
 on the outside of the locomotive, making the working parts more accessible and maintenance infinitely easier.

CP_steam_loco

A recreated Central Pacific # 60 steam locomotive at the Golden Spike National Historic Site in Utah          Photo: Mr Snrub at English Wikipedia. – Transferred from en.wikipedia to Commons., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=3488328

To many of us though, thinking of nineteenth century design in the USA, immediately there comes to mind the wood burning 4-4-0 types, replete with ‘cowcatchers’, ornate bell and enormous chimneys. (Diamond stacks as they were known.) These locomotives were a tradition, if not a legend of North American railroads, and engendered a folklore and many legends of their own., from ‘Casey Jones’ to the ‘General’. The latter, in particular, having quite an entertaining history, culminating in its seizure by Union forces during the Civil War. The elaborate ornamentation of some of those mid-nineteenth century designs achieved well nigh indescribable levels, with gold plated scrollwork and paintwork and lining schemes that would have done justice to any regal palace!

By 20th century standards such locomotives were small, yet it’ was with just such engines as these that the vast mid-west and western seaboards of the USA were penetrated. Possibly the most outstanding achievement being the linking by rail of both east and west coasts at Promontory, Utah on May 10th 1869.

Alabama Southern 4-6-0 - 1905

Typical of US motive power at the beginning of the 20th century was this 4-6-0 on the Alabama Southern Railroad in 1905.    Photo by: By Internet Archive Book Images. https://commons.wikimedia.org/w/index.php?curid=43245503

The locomotives of the Central and Union Pacific Railroads were brought
 to within feet of each other and the ceremony completed by driving in a golden spike. From this point, railroading in the USA entered a period of explosive growth, as the government endeavoured to foster settlement of the West. New routes and companies sprang into existence, almost on a par with the ”Railway Mania” period in this country. In terms of Locomotive design though, there the resemblance ended. Railway companies in this country, for the major part, relied on their own designs, whether built in their own workshops, or by contractors. In the USA however, contractors to a much greater extent were relied upon to produce the designs as well as constructing the engines.

There emerged the idea that locomotive manufacturers as specialists in design and construction of steam locomotives would develop their own ranges of ‘standard’ designs, to be bought virtually, “off the peg”. Naturally there were exceptions, though in the sphere of technical development, the manufacturers were often first in the field. This approach was not unknown in this country, but developed to a much greater extent in the USA. A resultant feature being that whereas here it is traditional to refer to a class of locomotive by its owner and designer; in the USA it is almost invariably that of the manufacturer. The names of which were virtually household in this country also; Baldwin, Lima, Alco, etc. Many of these companies’ products were owned by almost all railroads, where the manufacturer, being a specialist, designer and builder, could supply in greater numbers than could the railroads, who were left free to concentrate on the business of carrying passengers and freight.

In the early years of the 20th Century, locomotive design in the USA was moving towards progressively larger types, with which, ultimately, that country became world famous. Its largest locomotives though, owed their development to a French engineer. These were enormous articulated designs, capable of hauling the heaviest of loads, and often in many cases, their tenders alone were larger then the largest British Pacific locomotives, indeed, particularly with the articulated types of the Union Pacific and Norfolk &Western Railroads, even the fireboxes could be bigger than an average living room.

AAR 7 copy

A picture to evoke nostalgic memories of steam, as a pair of Northern Pacific’s giant Mallet articulated locomotives stand in the yards at Missoula, Montana, and ready to handle the huge transcontinental freight working. Photo courtesy; Association of American Railroads.

The most popular form of articulation in N. America was the Mallet arrangement, whose originator was the French engineer M. Anatole Mallet. Basically it consisted of two separate chassis supplied by a single boiler, the leading chassis being pivoted about, the rear. Principle wheel arrangements of this design were of the order of 2-8-8-2, 4-6-6-4etc. Although originally designed to make use of compounding arrangements, most of the N. American types were simple expansion machines, Such locomotives were designed primarily for heavy freight haulage, although on the Union Pacific, a smaller version of the enormous 4-8-8-4
 “Big Boy”, albeit a not much smaller 4-6-6-4 type, was intended for fast, long distance passenger turns. (Long distance on the Union Pacific, was the 5000 odd miles between San Francisco and Chicago). Many railroads in the USA used the articulated types, but there were of course some quite remarkable exceptions. Notably, on the Pennsylvania Railroad, whose rigid frame 4-4-4-4 and 4-4-6-4 locomotives, known forever as Duplexii, were of comparable proportions to the articulated types. Built during the “Streamline Era” and sporting an air smoothed casing, these were really spectacular designs.

C&O Class K4 at Chief_Logan_State_Park_-_C&O_2755

C&O Class K4 at Chief_Logan_State_Park, as preserved at Logan, West Virginia. 92 of this 2-8-4 design were built for C&O, where they were known as the “Kanawha” type, and although a number of other railroads operated them, they were also referred to as the “Berkshire” type.     Photo By Brian M. Powell, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=9374221

 

 

 

 

 

 

 

 

 

 

 

 

Santa Fe 5011 Texas Class 2-10-4 No.5017

Santa Fe “5011” “Texas” Class 2-10-4 No.5017. Built by Baldwin in 1944, this example is now at Green Bay Railroad Museum, 8/70. Baldwin started building these in the 1930s, and they were the heaviest (247.5 tons) and most powerful (T.E. 93,000 lbs) “Texas” type ever built and also had the largest piston thrust (234,000 lbs) of any locomotive.                 By Hugh Llewelyn – 5017Uploaded by Oxyman, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=24387751

Steam in the USA reached its zenith in the, early 1930’s, at the beginning of that decade there wore over 56000 locomotives in service. It was at this time, marking the ·beginning of the “Streamline Era”, that some of the most impressive and largest locomotives were built. The largest, as we have noted, were the mammoth Mallet articulated types, for heavy freight haulage. On the passenger side, as in this country, passenger schedules with improved timings, demanding higher speeds, dictated the design of more powerful locomotives, capable of handling the heaviest loadings. But, whereas in this country passenger locomotive design reached a peak with the heavy 4-6-2 Pacific types, in the USA. passenger locomotives became even larger. Amongst the largest and most impressive of these were perhaps the 4-6-4 Hudson and 4-8-4 Niagara types for the New York Central Railroad.

North American 1RPB Photo 488 NYC Niagara No 6000

Classic North American steam locomotives for express passenger or freight services, are perhaps nowhere better illustrated by the streamlined 4-6-4 “Hudson” and 4-8-4 “Niagara” designs for the New York Central Railroad.

Photos: Assoc of American RRs / RPB Collection

Of these, the former was probably the more popular for passenger haulage, the design being used in quantity by most, if not all of the U.S. Class 1 railroads. The New York Central’s design was possibly the most successful, though seeing a variety of improvements and alterations from its first inception, the overall design remained the same, its capacity for sustained high speed haulage of heavy loads was surpassed by few, if any others.

It might well be imagined that all North American steam locomotives were of massive proportions, such however would be far from the case, though it must be said that even the “Branch Line” locomotives were more often than not
 as large as many British main line types. Again, not all locos. were conventional in design. Apart from the several narrow gauge lines, the USA possessed some quite unique examples in the “Shay” and “Heisler” geared drive locos. intended for use on logging railroads, where the gradients, curves and clearances were often extremely severe.

The changeover from steam to diesel traction was begun earlier than here, but unlike this country, when the final elimination of steam took place, the railroads had a fairly lengthy experience of the new motive power behind them. The first diesel appeared on the Central of New Jersey Railroad in 1925. It was not an immediate success however, its power to weight ratio made it uneconomic, but these were problems of course, that were subsequently overcome, since 27 years later, the number of diesel locomotives outweighed that of steam. An interesting comparison can be made with these figures; in 1929 there were only 22 diesels in service, compared with 56,936steam types, by 1955 diesels were in the majority with 24,786 and only 5,982 steam. For steam, the worst years and complete elimination came between 1955 and 1962. During this period the number of diesels rose by 3,318; steam locomotives being reduced from 5,982 to 51! There are still, at the time of writing, seven steam locos in service on Class l railroads, six of which are narrow gauge types.

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Further Reading & Useful Links:

From Railway Matters: New York Central Giants

 

 

Deltics in Retrospect – Part 2

Standard

The 22 ‘Deltics’ lasted 20 years in high-speed main line service between London and Edinburgh, until they were replaced by the equally successful HSTs. The English Electric Type 5, later Class 55 has achieved as much fame and respect in the eyes of rail and engineering enthusiasts as the equally famous steam locomotives of Class A3 ‘Flying Scotsman’ and Class A4 ‘Mallard’ steam era 4-6-2 pacific locomotives.

D9019 at Bury on ELR

D9019 “Royal Highland Fusilier” at work on the East Lancashire Railway in the 1990s, seen here at Bury in classic two-tone green, but with full height yellow warning panels.                 © Rodger Bradley

Aside from their innovative engine design, and impressive power output, they turned in some quite remarkable performances with heavy trainloads over long distances. One of the most impressive was that of D9008 (55 008) “The Green Howards”, which, in 1978 hauled 10 coaches (343 gross tons) between York and London at an average speed of 97 mph – start to stop! (This is on record by a J. Heaton of the Railway Performance Society).

Thankfully 6 of the class have been preserved and are operating on a number of heritage lines, from the East Lancashire Railway, Great Central, Keighley & Worth Valley, and Severn Valley, amongst others, to numerous rail tours around the country.

Half of the preserved examples are now available for running on the main lines once again, although one of their number D9016 “Gordon Highlander” is undergoing a major overhaul, but back in the late 1990s it was used, along with sister locomotives on charter rail tours and specials, including the Venice Simplon Orient Express.

It is perhaps something of an irony that 16 of the class were scrapped at BREL’s Doncaster Works between January 1980s and August 1983, just as BREL was building the Class 58 freight locomotive, and Doncaster Works itself was finally closed in 2007 – though it had been run down for some years before.

When the class was built at Vulcan Foundry, the railway industry was still home to major engineering concerns – not least of which were the works at Newton-le-Willows, where these 22 locomotives were completed to the order from English Electric. Oddly perhaps, the order was placed through English Electric’s Bradford electrical works, and not from the nearby Dick, Kerr works at Preston, which had a long established relationship with the company, and where the original Deltic was built.   The production version, with the design ‘tweaks’ to the bodysides and appearance, were completed at just under two locomotives per month between March 1961 and April 1962, and were to have an operating life of just 20 years.

D9015 - Tulyar - cropped

D9015 “Tulyar” on a normal express service, at high-speed on the East Coast Main Line, where they were the definitive high-speed train of their day. The locomotive is in full original livery in this view. © RPB/GEC Traction Collection

Build & Operations

The Deltics were all built at the Vulcan Foundry, Newton-Ie-Willows, between March 1961 and April 1962, though the order was placed with English Electric for their construction in 1960. Listed here are the building dates:

DELTIC Running numbers

From new the Deltics were allocated to three depots; Finsbury Park in North London, Gateshead in the North East and Edinburgh Haymarket in Scotland.

The original allocations up to and including 1964 were:

  • 34G Finsbury Park – D9001 /3/7/9/12/18/20;
  • 52A Gateshead – D9002/5/8/11/14/17;
  • 64B Haymarket (Edinburgh) – D9000/4/6/10/13/16/19/21.

The allocations in 1978 were:

  • FP Finsbury Park – 55001/3/7/9/12/15/18/20;
  • GD Gateshead – 55002/58/11/14/17;
  • HA Haymarket (Edinburgh) – 55004/6/10/13/16/19/21/22.

Essentially they remained at these locations until their withdrawals began in 1980.

By June1961 the first six locomotives had commenced regular long distance passenger workings, but rostered in true steam locomotive style, since a Finsbury Park Deltic would work the down ‘Aberdonian’ on Sundays, returning the following day with the up ‘Flying Scotsman’. Similarly, Scottish Region Deltics worked out on the 11.00am Edinburgh to King’s Cross as far as Newcastle, returning with 11.00am ex King’s Cross. Later, their range was extended to work through to London and return on th e ‘Talisman’ and ‘Aberdonian’ services. Working what were traditional steam locomotive diagrams alongside English Electric Type 45, was undoubtedly an under-utilisation of Deltic power.

The first impressions of Deltic capability was displayed with some substantial accelerations of the principal East Coast services in the summer timetables introduced from June 18, 1962. It was widely recognised that the inclusion of a six hour timing between London and Edinburgh was an achievement on a par with the pre-war lightweight, streamlined ‘Coronation’ train – but. the Deltic diagram included no less than six such workings. The trains concerned in the in initial speed up were the ‘Elizabethan’, ‘Flying Scotsman’ and ‘Talisman’, the last two covering the 268.35 miles between King’s Cross and Newcastle in just one minute over four hours; an average speed of 66.8mph. Other named trains included in the accelerations were the ‘ Heart of Midlothian’, ‘Tees Tyne Pullman’, ‘ Yorkshire Pullman’, ‘Car-Sleeper Limited ‘ and the ‘Anglo Scottish Car Carrier’. Of these, the up ‘Tees Tyne Pullman’ was booked to provide the fastest average over the 44.1 miles from Darlington to York of 75.6mph. Of the night runs, some of these provided examples of the most dramatic accelerations, including no less than 77 minutes for the down ‘Car Sleeper Limited’ between London and Edinburgh with Deltic haulage. Deltics were also booked for both the 8.20pm down ‘Mail’ from King’s Cross, and the corresponding 8.20pm up train from Newcastle. With an average rostered load of over 450 tons, these services were accelerated by 40 and 33 minutes respectively.

D9013_The_Black_Watch(8191899366) copy

D9013 “The Black Watch” (later 55 013) in BR two-tone green livery and ½ height yellow warning panel enters Kings Cross in July 1966 with “The Flying Scotsman” from Edinburgh Waverley complete with the then new headboard which was carried for only a few years. By Hugh Llewelyn CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=24383446

The pattern of high speed Deltic hauled services was continued into the winter of 1962 and beyond, their reliability and availability built into a reputation for all round performance a success second to none. Of the pilot scheme diesels, many were dropped, though despite the early unreliability of the medium speed engines with electric transmission, a BR report of 1965 came down firmly in favour of that arrangement. Even so, the Deltics remained, a lone example of the successful mating of a high-speed diesel engine with electric transmission.

Standardisation in 1967 kept these 22 locomotives in the BR fleet as Class 55,and with the emphasis on higher powers, the National Traction Plan listed a basic main line stud to comprise classes; 20, 25, 27, 31, 33, 37, 40, 45, 46, 47, 48, 50, 52 and 55, to be achieved by 1974. An interesting inclusion was the Class 48, an improved Brush Type 4 that never materialised.

By the time of this particular spate of rationalisation, the Deltics had of course eliminated steam from all the principle East Coast workings, and operated intensive cyclic diagrams, and broke completely from steam traditions in not being allocated to any particular depot or Region, working throughout as required. With the introduction of the Brush Type 4 locos, much secondary work was taken from the Class 40s, the Deltics early stable mates, and occasionally, the Brush types would deputise for Deltics in the relatively rare event of a failure of the latter.

The_'Napier'_Bellow_-_55_009_(14675011249) copy

Class 55 English Electric ‘Deltic’ diesel locomotive No. 55 009 “Alicydon” roars up Holloway Bank out of Kings Cross with an Inter-City express for the North East in the mid 1970s. The green livery has gone, and full height warning panels in use. By Barry Lewis CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=44987568

Mechanically, the Deltics were required to achieve a standard life expectancy of 25 years, even allowing for the fact that they were the most intensively worked of all the BR diesel types. From new this meant that they would become life expired in 1986-7, and al though the rate of deterioration was virtually nil over a period of ten years, between say 1966 and 1976, in the last couple of years of operation withdrawal began to increase steadily. The last were taken out of service in May 1982. It is interesting to note that the first five years of the life of the Deltic engines – the running in period were guaranteed by the makers. With the introduction of the IC 125s, or HSTs on the East Coast main line the Deltics were gradually relegated to lesser duties, including excursions and inter-regional running, being latterly quite frequent visitors to the LMR. On 28th February, 1981, Deltic No 55022 (D9000), Royal Scots Grey, had completed 20 years service, the first of the class to do so, perhaps not surprisingly since it was the first production loco to enter service. In the event the occasion was marked by loco No, 55022 working the 12.20 King’s Cross to York with a special headboard provided by the Deltic Preservation Society, and a photographic exhibition was opened at the National Railway Museum by Deputy Keeper Mr P. W. B. Semmens. One loco is officially preserved at the NRM, 55002 The King’s Own Yorkshire Light Infantry.

Liveries

There were two main liveries carried by the Deltics, with some detail variations. The first schemes carried by these locomotives were what might be termed the standard green livery for diesel types as introduced with the first pilot scheme classes of 1957-8. The first BR schedule covering the painting of diesel locomotives in green livery was issued in 1956, and although some of the details were not really applicable to the Deltics, the basic treatment and processes were the same. It is interesting to note that in that first schedule, the green livery included a black roof (specification 30, item 36), and steam style express passenger lining and transfers – the lining being in orange and black at waist and skirt level on the body sides.

D9000

D9000 (later 55022) – the first of the class in original colours, captured on 17th August 1987 at a TMD open day – possibly Tyseley in Birmingham Photo: By Peter Broster CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=31876267

The Deltics were initially painted to the modified specification 30A, and covered by a schedule produced at the time of their introduction in 1961-2. This divided the painting processes into a number of areas, but those of principal interest to the modeller are of course the superstructure (exterior surfaces), roof, bogies, running gear and underframe. Wheels, axles and bogie frames were given one coat of primer to specification30A, item 1, and one coat of black lacquer, to item 40 of the same specification- though not of course to the wheel treads! Brake gear and exterior surfaces of the main framing .was treated to a final coat of general purpose black. Bufferbeams and stocks (with the exception of the short section of fairing covering part of the stocks) were red to Specification30A, item 9, with the colour a close match to BSS 2660-0-005. On top of this was a single coat of varnish. All exterior surfaces of the fuel and water tanks were given a coat of general purpose black whilst the battery boxes were given two coats of Black Acid Resisting Varnish (Specification 30A, item 4l).

Driving cab positions

Cab interior of Deltic in build. © RPB/GEC Traction Collection

Following various preparatory processes, the main livery areas of the body side panels were treated to one coat of primer, one coat of grey undercoat, one of locomotive green sealer/undercoating paint and a final coat of locomotive green enamel. This latter was Specification30A, item 34, and extended over the entire loco bodyside panels from skirt to gutters. A deep skirt or valance on the lower bodyside stopping just short of theca b door entrance sills, was picked out in a lighter colour, known as Sherwood Green. This was carried completely around the locomotive, and following the application of running numbers and crest, a single coat of locomotive exterior varnish was applied.

The roof area between the gutters was grey, and described officially as Diesel Locomotive Roof Paint, Specification 30A item 57. Cab windscreen and side window surrounds were picked out in white, originally with small yellow warning panels applied to each nose end, surrounding the four character train indicator boxes. The colour was to BSS2660-0-003, and most of the class although built without having warning panels had them applied later, only D9020 and D9021 had them painted on from new. Other non-standard details displayed originally included white buffer heads and drawgear on some members of the class; similarly axlebox end covers were picked out in yellow, as were the equalising beams on D9020 Nimbus – for a time. Window surrounds and boiler room air intake grille beadings were bright finished metal.

Block style running numbers were carried under each of the four cab side windows, in white, and below these were affixed crests of the type first introduced in 1956. Nameplates were carried on the bodysides mid-way between the cabs, and were cast in brass, with the lettering raised from a red background. Though before the locomotives received names a large crest was carried on the bodyside in the nameplate position. Soon after the Deltics were introduced, no more than two years to be precise, the first application of standard Rail Blue livery was made to a Brush/Sulzer Type 4 locomotive, and this standard rapidly became established on principal main line types.

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English Electric Deltic class 55 diesel locomotive No. 55 012 “Crepello” arriving at Kings Cross with an express from the North East. 1976 By Barry Lewis – CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=44987576

On the Deltics, the use of Rail Blue to BR Specification 53, item 13, covered the entire body, including the roof areas. It was alleviated only by the yellow nose, which itself was more extensive than the earlier warning panel, over-running the corners for a few inches. The underframes and bogies remained the conventional black. In recent years however, there has been a trend away from the rather dull uniform appearance of BRs blue locos, initiated largely on the Eastern Region, and resulting in a number of Deltics sporting white cab window surrounds again.

During the change over period from green to blue livery in 1968-69, D9005/17/18 had full yellow ends whilst still in green livery: D9010 also in green, had the new double arrow symbol. In the standard form on blue liveried locomotives this was 2 foot 6 inches long, and fixed under the cab side windows at each of the four corners, with the asymmetric running number behind each cab door. The ‘D’ prefix was dropped at this time also, and with the introduction of the ‘TOPS’ re-numbering scheme in 1972, the 6 inch high numbers of Class 55, in white, were positioned behind the cab doors on the driver’s side only.

The last variation on the Deltics livery has been the repainting for preservation of D9002 (55002), King’s Own Yorkshire Light Infantry, in the original standard two-tone green livery. A pleasing comparison with the standard Rail Blue, and perhaps with just a twinge of nostalgia, it doesn’t appear quite as dull as it did in the early 1960s, when steam was still to a great degree, supreme!

Life After Service & Preservation

No less than 6 of this unique class have been preserved, two D9009 and D9019 are operational for main line service, one D9002, is on permanent display at the National Railway Museum, whilst the remaining three (D9000, D9015, D9016) are under restoration or overhaul. Two of the cabs from D9008 “The Green Howards”, and D9021     “Argyll & Sutherland Highlander” are also preserved as static exhibits.

DELTIC preservedAfter withdrawals took place in the 1980s, British Rail banned all privately owned diesels from operating on its network, but the work towards securing and returning to operational service a member of this historic design began. However, despite an occasional run out to open days, and a trip for D9002 to its final resting place at the National Railway Museum in 1982, nothing further was seen of a Deltic in full service mode until after the privatisation of BR in the 1990s.

DP2 on Yorkshire Pullman trial run

The prototype DP2, with its new English Electric 2,700hp 16CSVT engine hauling then Yorkshire Pullman on a trial run. © RPB/GEC traction Collection

Whilst heritage railways had always been a home for these and many ex BR diesel types, it was not until the arrival of open-access train operations in the 1990s, that, for a fee, the owners of these powerful machines could take to main line running again, under Railtrack, and today, Network Rail.

Of course, as we are all aware, there was a spare Deltic body that gave birth to another famous English Electric diesel design – intriguingly at first carrying the number DP2 – later of course becoming the British Rail Class 50, with a new design of 4-stroke, 2,700hp diesel engine from the same maker. These are described in some detail in the post from the link below.

More useful links:

 

 

 

 

 

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