Derby Works - its 1,010 diesel locomotives.
A brief look at the diesel locomotives
built by Derby Locomotive Works from 1932 - 1967.

The production details of the diesels that came out of Derby are well documented in a variety of excellent publications. This humble offering is a consolidated look at these locomotives with a few memories thrown in. It came about because in researching the Class 25's the construction of D7667 is recorded as the 1,000th diesel locomotive built at Derby, even carrying commemorative plaques to that effect. Hence the seed was sown to delve a little further into what made up these 1,010 diesel locomotives.

Photograph courtesy Tony Sayer.

The general totals are:

Shunters: 599
10000/01: 2
Fell Loco: 1
Class 24: 77
Class 25: 226
Class 44: 10
Class 45: 39
Class 46: 56

The story begins however thirty six years earlier.

(All black & white views are from unknown sources - possibly the collection of FW Day - unless otherwise stated & the colour views are mine unless otherwise stated.)

(The numerical listing of the 1,010 locomotives is based on contemporary reports and hopefully is accurate, though where multiple production lines were running, particularly 1958 - 1960 the list is open to dispute as to which locomotive fits into each slot on the overall list).

The Shunters from the 1930's & 1940's
Diesel hydraulic 0-6-0 1831

By the time the LMSR took a serious interest in the possibility of introducing diesel traction into its fleet the basics of the diesel engine coupled to several types of transmission had been well explored in a number of countries, some combinations leading the way in the evolution of the diesel locomotive, others proving to be unsuccessful. The LMSR's pioneer fell into the latter category.

The LMSR took an economical approach to the situation by using the frames and wheels of ex-Midland Railway Class 1F 0-6-0 tank 1831 built at Vulcan Foundry, Newton-le-Willows in 1892. The approval for the conversion had occurred late in 1931, at which time a Davey Paxman engine was chosen to power the locomotive, utilising a hydraulic transmission from Haslam & Newton, Derby. This was another cost saving measure, the capital cost of electrical transmission equipment would have rendered the project uneconomic.


Released from Derby Works during November 1932, the locomotive was delivered to Euston for inspection prior to returning to Derby for testing in general shunting locally and at Toton. Various transmssion failures led to modifications and improvements. It was the destruction of the hydraulic transmission sometime late in 1936 that led to the storing of the locomotive at Derby, although official withdrawal did not take place until September 23 1939. World War II brought a new lease of life to 1831, not as a shunting locomotive, but as a mobile generator. It moved to Crewe for rebuilding in February 1940 and was released from there during November 1940. In its rebuild, the locomotive, now renumbered MPU3 kept its Davey Paxman engine, but now direct coupled to an electric generator. It spent some time at Coventry in 1940/41 before returning to Crewe, later being seen at Derby between late 1945 to early 1948. During 1949 it was noted at Crewe and appeared to remain there until broken up at Crewe Works in the latter half of 1955.

Diesel engine: Davey Paxman & Co, (Colchester) 6cyl 4 stroke 400bhp @ 750rpm.
Transmission: Haslam & Newton, Derby; hydraulic.
Weight: empty - 44t 15cwt; working order - 46t 2cwt
Wheelbase: 15ft 8in Wheel diameter: 4ft 7in
Length over buffers:30ft 3.75in
Height: 12ft 9in
Width: 8ft 7.5in
Tractive Effort: 20,000lb to 22,400lb
Maximum Speed: 25mph
Fuel capacity: 140 gallons
Total Conversion Cost: GBP7,514.77 - initial costs & improvements.

Whilst not a success 1831 provided the LMSR with valuable information. Between 1932 & 1934 the LMSR had also received for testing and evalution nine diesel shunting locomotives from private builders, none were constructed at Derby. Only one featured an electric transmission, which in light of it being heavier than the rest (an 0-6-0 rather than an 0-4-0) proved to be the direction in which the LMSR would proceed. This locomotive from Armstrong Whitworth powered by a Sulzer engine with electrical equipment by Laurence Scott & Electromotors was closely followed by a prototype 300hp shunting locomotive from R&W Hawthorn Leslie Co Ltd utilising an English Electric engine and transmission. These two machines would lay down the general characteristics of future shunting locomotives to be built at Derby.

The success of these two machines led to further orders of ten from each manufacturer, delivered in 1935 & 1936. None were built at Derby but all saw service on the LMSR.

These twenty machines further re-inforced the thinking of the LMSR authorities that the 350hp diesel electric shunter was the way forward. The following table provides details of the locomotives built at Derby that were derived from the Armstrong Whitworth & English Electric designs.

Shunting locomotives ordered by the LMSR 1936 - 1947
Order #, date & quantity Initial Cost per Loco DeliveryNumbers
Retired
458 & 486; July 1936; 20 GBP6,600 5/39 - 7/40 LMS 7080 - 7099, BR 12003 - 120221966 - 1967
1333 & 1334; June 1939; 20 GBP7,200 10/41 - 6/42 WD 49 - 58, LMS 7110 - 7119, BR 12023 - 12032 1964 - 1994
Dec 1940 - 100 GBP9,100 Order cancelled --
?? - 20 ?? Order cancelled --
3239 & 3240; ??; 20 ?? 5/44 - 12/45 WD260 - 273 & LMS 7120 - 7125, BR 12033 - 120381956 - 1978
?? - 20 ?? Order cancelled WD280 - 299-
1705; Dec 1945; 10 GBP10,000 8/47 - 12/48 LMS 7126 - 7135, BR 12039 - 120481968 - 1969
2437; Oct 1946; 10 GBP11,400 12/48 - 10/49 (LMS 7136 - 7145) BR 12049 - 120581969 - 1971
3285; Oct 1947; 10 GBP14,400 11/49 - 3/50 (LMS 7146 - 7155) BR 12059 - 120681967 - 1972

Diesel electric 0-6-0 LMS 7080 - 7119 (Order #'s 458, 486, 1333 & 1334)
(BR numbers 12003 - 12032)

The first orders built at Derby were a compromise, featuring the English Electric engine and transmission but using the single large traction motor mounted above the frames in the engine compartment and driving the wheels through a jackshaft arrangement, as initially featured in the 1933 Armstrong Whitworth design. (The two axle hung self-ventilated nose-suspended traction motors driving through a single reduction gearing which featured under the English Electric designs had suffered from serious overheating.) Hence the flawed jackshaft drive would remain until the engineering difficulties in using forced ventilation and double reduction gearing on the axle hung motors had been overcome.

It was also perhaps unfortunate that Armstrong Whitworth had shut down their Rail Traction Division by this time. However the internal layout remained similar to the Armstrong Whitworth design with the exception of the position of the electrical control cubicle, which now formed the driver's desk.

Three of the first order were fitted with vacuum exhausters, for the brake testing of assembled goods trains, this equipment was later removed. The second batch were fitted with a belt driven auxiliary generator for battery charging. In the earlier batch this had been done by the generator when idling. As these machines were to spend much time hump shunting they were fitted with two speedometers, the normal one showings 0-20mph, the second one reading 0-2mph. It was calibrated in 0.02mph divisions, a vernier control handle on the cab desk permitted fine adjustment of the locomotive speed.

The first twenty (7080 - 7099) were used at Toton, Willesden & Crewe South. A couple were borrowed by the War Department (WD) starting in 1941. Of the second batch (7100 - 7119) requests/demands were placed upon the LMSR to release them to the WD as part of the continued war effort. This proved problematic for the LMSR as the success of the existing diesel electric shunters, the increased demands from the wartime traffic and the additional manpower needed when diesel turns reverted back to steam shunters came at a time when the railways were being asked to do more than ever with ever diminishing resources.

The WD required twenty two locomotives, six came from the 1935/36 RS Hawthorn Leslie built batch, ten (7100 - 7109) were diverted to the WD after completion at Derby and were renumbered 49 - 58. The final six wanted by the WD (7110 - 7115), after much pleading from the LMSR were released for use at Kingmoor. 7116 - 7119 went directly to service at Crewe South, Willesden & Toton, the Kingmoor six later being moved to Toton!

As one might imagine the service histories for the LMSR machines was mundane, after Nationalisation they were renumbered 12003 - 12032 and all remained in service until 1964 when 12030 was the first withdrawn. By the end of 1967 all the BR machines were out of service & retired. None reached into industrial service or preservation, by the end of 1968 all had been broken up. They were outlived by the ten WD machines (LMSR 7100 - 7109, then WD 49 - 58). Some of the Egyptian examples lasted until 1974, whilst certain of the Italian machines (7103/05/06/09) were rebuilt in the 1980's and worked at least into the mid 1990's with a track maintenance contractor in northern Italy. By 1999 7106 was still in service with the privately owned La Ferroviara Italiana railway. Remarkably its remaining sister 7103 reached preservation at the Museo Ferroviairio Piemontese in Turin.

Three of the group were scrapped at Derby Works; 12011, 12029 & 12030.

With a production span of over twenty five years the engine that went into the various 350hp shunting locomotives, including both pre-Nationalisation & BR orders, was probably the most prolific of any found on British Railways. The engine was also utilised in many overseas orders.
Delivered as 7085 in September 1939 to Speke Jct 7085/12008 spent the next twenty eight years at Speke, Toton, Crewe South & Willesden. By January 1968 12008 was at CF Booth's, Rotherham for scrapping.
With 'British Railways' prominently displayed 12009 awaits its next turn of duty. Clearly visible is the unequal axle spacing caused by the location of the single large traction motor.
A well worn 12010 awaits in the sunshine for its next turn of duty. Delivered in December 1939, withdrawn in September 1967 from Speke Jct, 12010 was scrapped at Slag Reduction, Ickles in September 1968.
A slightly faded view of 12020. The early LMSR examples were moved north from Willesden as the LMR electrification proceeded - one of the reasons is clearly visible here - the extremely low position of the three link coupling when not hooked up.
Another view of 12020, seen here at Mold in the summer of 1963, it was allocated here for almost five years. Delivered new in June 1940 as LMS 7097 it ended its days at Slag Reduction, Rotherham in August 1968. Photograph from the collection of Ron Healey - as posted on 'abpr'
An interesting side portrait of 12025, dated 1960, possibly after a works visit. It also ended its days at Slag Reduction in the summer of 1968. Photograph from the collection of Ron Healey - as posted on 'abpr'

Two cancelled orders

Late in 1940 authorisation had been recieved to build a further one hundred shunting locomotives, the CME stressing the known inherent advantages of the existing diesel electric shunters over their steam counterparts. A further twenty were also ordered to replace the 1935/36 batches which had been commandeered by the War Department. Both orders were cancelled due to the problems created by the escalation of World War Two.

Diesel electric 0-6-0 WD 260 - 273, LMS 7120 - 7125 (Order #'s 3239 & 3240)
(BR numbers 12033 - 12038)

In 1940 LMS 7074 became the guinea pig for the engineers to solve the problem of overheating in the English Electric design. Low speed and high current conditions found in regular & hump shunting produced large quantities of heat that was not quickly dissipated by the armature mounted fans. Reducing the locomotive's maximum speed from 30mph to 20mph allowed the fitting of double reduction gearing, and by installing forced ventilation to the motors solved the problem of overheating.

This modification was now featured in this and all following orders for what would soon become British Railways standard shunter. The layout remained very similar to earlier builds except for the better distribution of the internal components allowing for a reduction in weight of eight tons, these machines weighed 47tons 5cwt.

Visually this build would be the style that would be easily recogniseable as the BR Class 08 standard 0-6-0 shunting locomotive.

This order was placed by the Ministry of Supply, fourteen were delivered to the War Department prior to the end of the Second World War, with the war ended the remaining six passed to the LMSR. Several of the WD machines saw brief service on the LMSR at Toton, possibly as a breaking in turn whilst ex-works from Derby, for the remainder of their WD careers the first nine spent much time in France, Holland & Belgium, the remainder seeing mixed service overseas and within the United Kingdom. Ten locomotives were purchased by the Dutch Railways in 1946 and remained in service into the 1970's. One ended its days in France, another being purchased by the Danish Railways. Those remaining in the UK worked out their time at various WD locations.

Again the WD operated locomotives outlived their BR counterparts, 12033 - 12038 were all withdrawn by 1969 & broken up by the middle of 1971, whilst the others lasted into the mid 1970's, either in the UK or overseas.

One early WD retirement was WD 877 (70271) which collided head on with Stanier 8F WD 512 (later BR 48775) on the Longmoor Military Railway (LMR) on October 13th 1956. Six soldiers were killed and twelve injured in the first fatal accident on the LMR. The diesel shunter was scrapped in 1957.

Two of this order are preserved, WD 70269, after many years of operation in Holland became part of the Dutch National Collection during 1995. And WD 70272 (later AD601) after retirement in 1980 was preserved on the Lakeside & Haverthwaite Railway, Cumbria, UK.

Basford Hall, Crewe September 1954, and a view just oozing with nostalgia as 12037 works the yard. The locomotive survived into the 1970's, just, it was scrapped at Cashmore's Great Bridge in July 1970 after spending eighteen months dumped at Chester. Photograph from the collection of Ron Healey - as posted on 'abpr'

One cancelled order

A second order placed by the Ministry of Supply to follow on from the above order was cancelled due to the cessation of hostilities.

Diesel electric 0-6-0 LMS 7126 - 7155 (Order #'s 1705, 2437 & 3285)
(BR numbers 12039 - 12068)

These were the last three orders placed under the auspices of the LMSR. However only four of the locomotives were delivered prior to Nationalisation (7126 - 7129), two - 7130 & 7131 were delivered in 1948 retaining the LMSR numbers, whilst the first to receive the new numbering was 12045 (7132). 7129 was the last diesel shunter to be built for the LMSR.

The majority of this class lasted into the early 1970's, about half a dozen after withdrawal from BR went into industrial service, mostly with the National Coal Board.

Only one of this batch ended their days at Derby Works, blue liveried 'D' prefixed 12062, broken up in December 1971.

Delivered in December 1948 to Crewe South 12049 ended its BR days at Bletchley in October 1971. However it was one of several to continue in use in industrial service, 12049's new owner was Messrs Day & Son, Brentford Town. Seen here on April 27th 1980 it was a frequent visitor to Old Oak Common for maintenance.
Another Class 11 to reach industrial service was 12060, which joined other members of the Class on the NCB lines in the North East. Seen here on June 30th 1980 12060 sports an interesting livery. After fourteen years with the NCB the locomotive was broken up at Lambton Engine Works during November 1985.

The three LMSR mainline Diesel locomotives
Diesel electric Co-Co 10000 & 10001
Fell locomotive 10100

Since the LMSR had acquired much experience in the field of diesel electric shunting locomotives, it was only logical that they would eventually venture into the arena of building mainline passenger locomotives. The onset of Nationalisation spurred the authorities to put into traffic a mainline passenger locomotive prior to the disappearance of the 'Big Four' into "British Railways'. Thus in May 1946 representatives from English Electric & the LMSR reached agreement on the construction of two 1,600hp six axle diesel electric locomotives.

Another project received approval just prior to Nationalisation, in October 1947 an agreement between Davey Paxman & Co, Shell Refining & Marketing Co & Lt-Col LFR Fell (the LMSR Derby would be the main contractor) led to the eventual construction of the infamous 10100 Fell locomotive.

Of the above three locomotives only 10000 was completed prior to December 31st 1947, 10001 was still under construction and the Fell locomotive would not have the frames laid until March 1949.

Making a striking pose in lined green livery is 10000 in BR days. Contemporary European design would probably have given the locomotive a flat (noseless) design, one presumes that existing American practice influenced the designers.
Photograph courtesy BR
With at least fifteen coaches in tow 'The Twins' make a striking pose early in 1948 northbound in the Lune Gorge. 10000 still carries its LMS lettering.

The Shunters from the 1950's & 1960's
Diesel Electric 0-6-0

Shunting locomotives ordered by the British Railways 1948 - 1960
Order #, date & quantity Initial Cost per Loco DeliveryNumbers
Retired
4311; ??; 19 ?? 7/50 - 12/50 12069 - 120871968 - 1972
5127; ??; 15 ?? 6/51 - 6/52 12088 - 121021969 - 1971
??; ??; 15 ?? 1952 13000 - 13014, 3000 - 3014, 08001 - 080061972 - 1983
6232; 1953; 10 ?? ?? 13015 - 13024, 3015 - 3024, 08008 - 080171973 - 1983
6739; 1953; 9 ?? ?? 13025 - 13033, 3025 - 3033, 08018 - 080251972 - 1986
6839; 1953; 26 ?? ?? 13034 - 13059, 3034 - 3059, 08026 - 080461972 - 1985
8240; 1954; 15 ?? ?? 13082 - 13096, 3082 - 3096, 08067 - 080761972 - 1983
8340; 1954; 20 ?? ?? 13097 - 13116, 3097 - 3116, 08077 - 080911972 - 1986
8350; 1955; 10 ?? ?? 13117 - 13126, 3117 - 31261966 - 1967
9244; 1955; 25 ?? ?? 13167 - 13191, 3167 - 3191, 08102 - 081241972 - ?
9245; 1955; 25 ?? ?? 13192 - 13216, 3192 - 3216, 08125 - 081481967 - ?
9248; 1956; 53 ?? ?? 13245 - 13297, 3245 - 3297, 08177 - 082271972 - ?
252; 1957; 82 ?? ?? 3337 - 3418, 08267 - 083481976 - ?
658; 1958; 70 ?? ?? 3503 - 3572, 08388 - 084571976 - ?
1400; 1959; 40 ?? ?? 3763 - 3802, 08596 - 086351977 - ?
2277; 1959; 74 ?? ?? 3937 - 4010, 08769 - 088421978 - ?

Diesel electric 0-6-0 BR 12069 - 12102 (Order #'s 4311 & 5127)

This order was simply a follow on from the previous LMSR batch, the only change being that it was ordered under the auspices of post-Nationalisation British Railways. A following order for 12103 - 12138 was given to Darlington Workshops for construction.

The Derby built examples remained in service from December 1968 until June 1972. Nine went into industrial service, a number of those lasting long enough to reach preservation.

12071 Swindon Works October 26th 1980 This was a well travelled locomotive prior to being sold to the NCB South Wales in December 1971. By July 1990 12071 was at Booths, Rotherham with an uncertain future. It was later sold into preservation at the South Yorkshire Railway group.
Another locomotive to reach preservation, also at the South Yorkshire Railway site, was 12074, seen here at Swalwell Disposal point on June 30th 1980.
Cashmore's Great Bridge scrapyard did not contain much storage space so locomotives were processed through here quickly. An exception however was 12077 which spent several years at Cashmore's prior to reaching preservation at the Midland Railway Trust, Butterley during December 1978.
After withdrawal from Chester in October 1971 12082 moved to the UKF facility at Ellesmere Port, remaining in industrial service for the next sixteen years. Seen here on August 26th 1980 12082 was the only Class 11 to be airbraked, and that was after reaching industrial service.
Photograph courtesy A Healey.
12084 spent a great chunk of its life in the Carlisle area. After withdrawal from Crewe during July 1971 it went to work for a further fourteen years with the NCB in the North East. It was broken up at NCB Philadelphia during November 1985.
Another well travelled machine was 12099, from Nottingham to Willesden & many other LMR depots before joining the NCB fleet visiting Wales and Yorkshire prior to reaching Booth's, Rotherham from where it was sold to the Severn Valley Railway in 1990. Seen here at Bowers Row Disposal Point during 1985, 12099 sports a very orange livery.
Photograph courtesy A Healey.
A well filled yard at Willesden provides the backdrop for 12100 as it shunts a number of wagons sometime during 1960. Photograph from the collection of Ron Healey - as posted on 'abpr'

Diesel electric 0-6-0 BR 13000 series (Various Orders)
(Later number series D3000+, 3000+, 08001+)

After completion of the LMSR/BR orders for the Class 11 shunters British Railways continued ordering what would become a fleet of almost twelve hundred 0-6-0 shunters. Derby would build 508 of these locomotives, Darlington, Crewe, Horwich & Swindon also received orders. The most significant alteration to the existing design was the increase of the wheel diameter to 54 inches, which allowed the coupling rods and cranks to come within the universal 'L1' loading gauge. In addition the chassis was designed to accomodate equipment supplied from various sources with the minimum of alterations.

The first of the standard Class 08's - 13000 to 13014 were completed at Derby during 1952, none went to the LMR, they were about equally divided between the WR, ScR & SR.

The first variation occurred with 13117 - 13126 (later 3117 - 3126). These ten machines were powered by a Crossley 6cyl ESNT engine with Crompton Parkinson providing the two traction motors. Whilst dual sourcing of equipment has advantages it soon became obvious that the non-English Electric equipped shunters were considered 'non-standard' and were the first to be withdrawn. These ten locomotives were retired between December 1966 and July 1967, all were broken up by May 1968. 3121 ended its days at Derby Works.

There followed two other variants but these were not built at Derby. All the remaining Class 08's built at Derby were of the standard design. Although Derby's last shunter built was 4010, its order books originally contained a further order for D4011 - D4027, these were diverted to Horwich at the end of 1960. However the Works would remain heavily engaged in the building and repair of Classes 24/25/44/45/46 and the repair of much of the other LMR diesel fleet, and the commissioning of news diesels left the Workshops very busy!

The first of the Class 08's left Derby during 1952 and went to the WR, which is more than likely where this view of D3001 is, perhaps Cardiff. Doncaster Works scrapped this locomotive during November 1975.
D3002 awaits its next turn of duty. Withdrawn in July 1972 after twenty years service 3002 eventually reached preservation.
13005 in a factory portrait, presumably at Derby in 1952. Photograph from the collection of Ron Healey - as posted on 'abpr'
Its March 23rd 1980 and 08006 has been recently retired from Darlington. It is seen here at Swindon, seemingly in reasonable condition, but with very little time left.
The 150th diesel locomotive to be built at Derby eventually became 08014, which is seen here just across from its birthplace on July 7th 1979. At this time there were two station pilots at Derby, both vacuum braked, the arrival of the airbraked stock brought a change of shunters, 08899 becoming one of the longtime favourites for this duty.
An interesting view of 08170 with a painted-on 'Impala' nameplate.
One or two of Derby's shunters gained notoriety with respect to unusual identification. One such was 08173 which is seen here at Polmadie on June 29th 1978 disguised as PO1, presumably dedicated to shunting duties for Polmadie depot and its workshop. 08173 ended its days at Thornton Jct in March 1987 at the hands of Vic Berry's men.
Derby's 350th diesel locomotive was 350hp shunter 08280, seen here at Motherwell with 08883 on July 5th 1980. After withdrawal in October 1980 the shunter made the long journey down to Swindon, being broken up there in February 1982.
The last shunter built by Derby was 4010, in the renumbering scheme this became 08842, the shunter is seen here at its birthplace, Derby, on August 25th 1992. The first 08's built at Derby would have found the station still with its overall roof, now that is long gone, although 'maroon' liveried coaches still exist. And the HST is no longer a spring chicken anymore.

The Modernisation Plan, 1955 onwards
The Sulzer powered Bo-Bo's & 1Co-Co1's

With the established history of diesel locomotive building at Derby Works it was no surprise that two of the Modernisation Plan designs were to be built there. Frames for twenty of the BR/Sulzer Type 2's & ten BR/Sulzer Type 4's were laid down in 1958/1959. The 'meltdown' of the intended direction of the 1955 Modernisation Plan led to many new orders being placed. The BR/Sulzer Type 2 had become one of the favoured 'standard' designs with the result that a further 131 were ordered, with Crewe & Darlington sharing in the orders. For the BR/Sulzer Type 4's a further 127 were ordered, shared between Derby & Crewe.

The first of the Class 24's, D5000 was completed during the summer of 1958, coming off the production line amidst new Class 08's D3545 - D3555. Based on my humble list D5000 was the 465th diesel locomotive to be built at Derby. A year later, in September, the first of the BR/Sulzer Type 4's was delivered, D1 'Scafell Pike' amidst shunters D3777 - D3783 and Type 2's D5020 - D5023. D1 was (give or take) the 527th diesel locomotive built at Derby.

As the 1950's closed Derby was busy, very busy, the last of the Class 44's, D10 'Tryfan' was about to be delivered, the shunters had reached D3802 and the Class 24's had reached D5068. The Works was also handling the repairs for the growing LMR diesel fleet and was commissioning the new diesels that were to be allocated to the LMR.

During 1960 the Class 08 & Class 24 production lines continued with the first of the Scottish Class 24's, D5114, turned out in April, featuring a redesigned cab roof incorporating a four charachter route indicater, and a cleaned up cabfront with the circular indicator discs removed. During spring a new production line opened up, being a follow on from the Class 44's, now with the uprated 2,500hp engine. The last half of 1960 was probably one of the busiest times at Derby with these three diesel types in production and ongoing repairs to both the diesel & steam fleet. As the year closed out Derby's final shunter, D4010 emerged alongside the last few examples of the Class 24's and the first half dozen Class 45's.

1961 started with the last Class 24, D5150, delivered in February leaving Derby to concentrate on construction of the Class 45's from the block D11 - D49. If my calculations are correct D21 became the 700th diesel built at Derby, outshopped in March. When the order for the Class 45's was completed another fifty six had been ordered (D138 - D193), substantially the same except for the electrical equipment, this last build became the Class 46's. The first of these was outshopped in November 1961.

Production of the Class 46's continued throughout 1962, with the last example, D193 being outshopped in January 1963, just in time to experience one of the severest winters in fifteen years. Coming after this production run was a further batch of Type 2's, now equipped with the uprated 1,250hp engine, the first of which had gone into D5151 - D5175, being built at Darlington. For Derby's examples the bodystyle remained similar to the final Class 24's, though with some noticeable changes, gone were some of the styling features and the boiler/fuel tank arrangement was altered. Derby's batch ran from D5186 - D5222, the order for D5223 - D5232 was transferred to Darlington whilst Derby worked on a cleaned up redesigned bodyshell for the next order of Class 25's. As usual with such a large order there were bound to be 'odd men out' and for Derby it was D7568 - D7577, these ten machines followed on from D5222 retaining the same body style but with GEC series Two equipment, yet numerically out of order.

D5201 was the 800th diesel locomotive built at Derby, delivered during June 1963.

At the end of the summer of 1963 the first of the frames were laid for the redesigned Class 25 bodyshell, by December 1963 D5233 was ready to go into traffic. Unique to this batch (D5233 - D5238) was the fitting of boilers, beyond D5239 all the Class 25's coming out of Derby were without train heating equipment.

Production continued on through 1963 & 1964 with the 900th diesel rolled out in November 1964, the lucky winner being D7502.

More of the same occurred in 1965, Derby's 950th diesel locomotive appearing as D7552 in July 1965. Oddball D5299 was delivered way out of sequence during November 1965. This had been the intended testbed for the R series Sulzer 6 cylinder engine, but major problems with the 12LDA28C in the Class 47's diverted all available resources away from new projects. Thus D5299 was completed as a normal Class 25 a year after its numerical sisters.

In September 1966 D7623 came off the production line, the 992nd diesel constructed at Derby. It would have been the last except for the request by Beyer Peacock Ltd, Manchester, who were building D7624 - 7677, to be released from their contract for the final eighteen locomotives. Derby took back the construction for D7660 - D7677 with the final locomotive delivered to traffic in May 1967, the last of 1,010 diesel locomotives built at Derby Works.

First of the class 5000 drifts through York station, probably circa 1970 following its reinstatement and repair at Derby Works during 1969. As one of the first build the locomotive is equipped with Athermos axleboxes whilst the bogies carry the two-rung footsteps up to the cab.
The 500th diesel built at Derby Works was D5011, seen here at Birmingham New Street working a local service on July 30th 1962. The locomotive displays the original location of the 'blue star' multiple unit symbols which are located above the multiple unit cable sockets. This locomotive is equipped with Athermos axleboxes.
Photograph courtesy G W Sharpe.
25101 lays over at Thornaby on February 15th 1981. This was the 850th diesel locomotive built at Derby. After withdrawal and removal to Swindon its bogies were sold to the Mid Hants Railway as spares for 25067.
Photograph courtesy Tony Sayer.
A workstained 25152 undergoes repair at its birthplace on June 11th 1978. This was the 900th diesel locomotive built at Derby.
Photograph courtesy Graham Turner.
An across the platform shot of 7623 at Derby on August 13th 1970, recently outshopped by the looks of the gleaming paintwork. This would have been the last diesel built at Derby (#998) had the financial condition at Beyer Peacock not worsened to the point where the company folded and the last eighteen locomotives on order at BP were transferred back to Derby.
Photograph courtesy Tony Sayer.
Derby's 1,000th diesel locomotive, D7667, is seen here in a factory portrait awaiting entry into traffic.
Photograph courtesy BR.
44009 was moved away from the WCML in March 1962, spending the rest of its days at Toton. Seen here at Nottingham on September 6th 1976 the Class 44's were daily visitors here until all were withdrawn by November 1980. All those broken up ended their days at Derby Works.
The second of the uprated Type 4's to leave Derby during October 1960 was D12. It is seen here still sporting gangway doors, these were only carried by a few Class 45's and in most cases were removed at the next major overhaul. Surviving until May 1981 45011 returned to Derby to be broken up there in September 1981.
The 701st diesel locomotive built at Derby was D22, it became the first Class 45 to be allocated to Darnall, on September 24th 1961, prior to the opening of Tinsley. A regular on the NE/SW route, passenger duties continued after the fitting of electric train heating equipment, & renumbered 45132. Withdrawn in May 1987 preservation followed.
D23 heads southwestwards, possibly in the Bromsgrove area with a nine coach train. D23 would end its days as 45017, being withdrawn from Toton during August 1985.
One of the last Class 45's delivered from Derby was D45 (#724 out of the 1,010), sporting an updated version of the headcode panel, with the gangway doors no longer needed a cleaner looking installation was possible. The early class 45's were well travelled, visiting regularly the Scottish & Southern Regions, D45 already looks like it has already travelled many miles.
D50 'The Kings Shropshire Light Infantry' was not built at Derby, the order of D50 - D67 were transferred to Crewe, being delivered after Crewe finished its order ending at D137. Seen here in its early days at Bristol, it would be renumbered 45040 and remain in service until July 28th 1987
Delivered in February 1962 D155 was one of last Class 46's to retain its green livery, along with 165 it was well remembered on the NE/SW services carrying a faded work stained green livery into the 1970's.
D159 (46022) was the 750th diesel delivered from Derby Works. Entering traffic in March 1962 and active until retired in March 1982 - retired from Gateshead with a defective generator. This view and the one below were taken at York on July 15th 1978.
A view from the other end of 46022 reveals its unusual headcode panel as it runs through York station. After withdrawal it was off to Swindon Works where the end came in October 1983.

Requiem
If the accounting standards for the economic life of a diesel locomotive are applied to the Derby built units then most were able to meet that target of fifteen years service.

Obviously for the vast majority of the LMSR ordered shunting locomotives (and the follow on BR Class 11's) the fifteen year 'life' was met and exceeded quite considerably in many cases. And for some that included a second lease on life in industrial service. For some of these this proved beneficial as they lasted long enough to find a further span of life in the preservation movement, useful not only as maids-of-all-work on a miriad of preserved lines, but also of historic interest as part of the evolution of the diesel locomotive in the UK.

Similarly for the huge run of Class 08's most proved to be a bargain for their owner. With the exception of the Crossley powered Class 08's - withdrawn in 1966/67 - the first extensive withdrawals of the Derby built Class 08's began in the mid 1970's. A fair number of these withdrawals were purchased for further industrial use, with several of these eventually reaching preservation. Obviously the earlier builds were favourites for retirement as heavy repairs became due and as traffic volumes dwindled during the 1970's & 1980's. For some of the later build life extension was guaranteed by the fitting of dual brake equipment from the mid 1970's, allowing some to have a lifespan of 35 - 40 years (as this is written).

For the mainline diesels the picture was not one of such longevity, but most fulfilled the accountant's standard of fifteen years.

With the exception of several accident damaged/rundown locomotives Derby's Class 24's survived until 1975/76, although 24023, 24073 & 24133 lasted until 1978. Only one Class 24 was broken up at Derby, D5005 in 1969, at the time of the mass withdrawals in 1975 several withdrawn examples were at Derby Works, but these were quickly removed to Swindon. None of the preserved examples were built at Derby.

The Class 25's followed a similar route as the Class 24's with the first inroads into the class occurring during 1977/78 - this ignores the two accident victims, 5278 & 7605. However it would take ten more years for the class to become extinct in March 1987. Derby's longest lived example, 25037, remained in service for almost twenty four years. Of the nineteen examples that reached preservation most were Derby built.

The first Class 44's withdrawn occurred at the same time as that of the later Class 24's - in the summer of 1976. By November 1980 the last three were withdrawn. Two reached preservation, Derby Works breaking up all the rest. The last of the big Type 4's built at Derby - the Class 46's - entered service between late 1961 and early 1963, the first withdrawals in late 1977/78 were due to fire/collision damage. The summer of 1980 brought the first major inroads, principally of Laira based locomotives, by November 1984 the final Gateshead examples had been withdrawn. Three reached preservation whilst 46009 gained infamy in the destructive testing of a nuclear flask at Old Dalby.

Without a doubt the Class 45's were the longest lived of Derby's Type 4's. The first - D11 (45122) - had a working life of almost twenty seven years, prolonged no doubt due to it being fitted with electric train heating equipment in the mid 1970's. Withdrawals had begun in 1980 (apart from accident damaged 45067) and the last of the Class 45's were withdrawn from regular revenue earning service in the summer of 1988. However some would linger for a further six years in storage at March before making one final trip to Glasgow for breaking. Three of Derby's Class 45's reached preservation.

Useless Details
Locomotives built at Derby that were broken up at Derby
No Class #; 12011, 12029, 12030
No Class #; 10100 (Fell locomotive)
Class 11; 12062, 12089, 12091
Class 08; 3020, 3034, 3051, 3089, 3121, 3172, 3193
Class 24; 5005
Class 25; 7605, 25038, 25043, 25045, 25066, 25085, 25092, 25094, 25165, 25170, 25174, 25216, 25217, 25261, 25267, 25271, 25272.
Class 44; 44001 - 44003, 44005 - 44007, 44009, 44010
Class 45; 45011, 45025, 45030, 45031, 45035
Class 46; 46003, 46005, 46024, 46040, 46053

The Wandering Few
Not all the locomotives built at Derby remained in the UK for all their working lives, some travelled further east than Skegness and further south than Bognor Regis.
Algeria 7109
Belgium 70260, 70261, 70262, 70263, 70265, 70270
Denmark 70273
Egypt 7100, 7101, 7102, 7103, 7104, 7105, 7107, 7108
France 70260 - 70270, 70273
Italy 7103, 7104, 7105, 7106, 7109
Liberia 3047, 3092, 3094, 3098, 3100
Netherlands 70260 - 70269
Tunisia 7106, 7109
West Germany 70270, 70273

They made the News, usually the bad News
1961, July; D34 (45119) - recognised by British Railways as the 1,000th main line locomotive built for British Railways.
1962, March 28th; D153 (46016) tested on the 'Royal Highlander' Inverness - Perth.
1965, December; D16 (45016) snowed up at Dent.
1971, December 16th; 7605 with a Liverpool - Nottingham parcels collides head on with a westbound coal train hauled by 8115 & 8142 on the ladder crossover at Lenton South Jct. Two drivers and a guard are killed, my local newspaper, The Derby Evening Telegraph provided front page coverage.
1979, March 1st; 46036 working the 07.40 Cardiff - Newcastle hits a rubbish lorry at Naas Level Crossing (Lydney). The two locomotive crew and the rubbish lorry driver are killed, the story was well covered by the TV & Press.
1979, October 22nd; 25083's failure on a Glasgow - Dundee working at Invergowrie is one of the elements that led to a rear end collision by a following Glasgow - Aberdeen service hauled by 47208. The two crewmen on 47208 and three passengers on the Dundee train were killed. The last two coaches of the Dundee service end up in the Tay estuary. This again was extensively covered by the TV and Press.
1984, July 17th; 46009 of course receives major TV and Press in its destructive collision at Old Dalby whilst testing the integrity of a nuclear flask.
1984, December 4th; 45147 on the 10.05 Liverpool - Scarborough rearends a stationary loaded oil tank train at Eccles where the line parallels the M602.The collision resulted in a major fire, the driver of the Class 45 & two passengers were killed. Such was the newsworthy 'content' of this story that it was carried by a major TV station in Los Angeles on the evening news, & witnessed there by your scribe.
1995, October 1st; 46035 - first preserved diesel to run on 'BR' after certification.

Postscript
Although D7677 was the final diesel locomotive built at Derby, the Works completed one more 'locomotive' order, for six electric non-driving motor coaches to power the six Advanced Passenger Train formations. These were built in 1978/79 and were numbered 49001 - 49006.

Principal Sources Used in no particular order:

Diesel & Electric Disposal; A Butlin, Coorlea Publishing 1987
Diesel Locomotives of the LMS; JWP Rowledge, The Oakwood Press 1975
LMS Diesel Locomotives & Railcars; EV Richards, RCTS 1996
BR Locomotives & Other Motive Power (Combined Volume); Ian Allan - various years

Page update January 19th 2004

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