West Burton Power Station was used as a testing ground for the MGR system[1] but the first power station to receive its coal by MGR was Cockenzie in Scotland in 1966.[2] It was estimated at the time that the 80 MGR hoppers needed to feed Cockenzie would replace up to 1,500 conventional wagons.[3]
A 1.2GW power station, such as Cockenzie, receives up to 3 million tons of coal a year, whereas a larger 2GW plant, like West Burton, up to 5 million tons per year. By the end of 1966 there were about 900 wagons carrying 53,000tons a week to four power stations.[4] Power stations that were built to handle the new MGR traffic were Aberthaw, Drax, Didcot, Eggborough, Ferrybridge C,[5]Fiddlers Ferry and Ratcliffe, of which only the last is still open for traffic.[6] Many of the older power stations were gradually converted to MGR operation.
HAA 354966 at Barrow Hill, with EWS-liveried framework
There were 11,162 MGR hoppers built. The numbering ranges were 350000 - 350001, 350002-359571, 365000-366129 and 368000-368459, known as the Mk1, Mk2, Mk3 and Mk4 builds.
The two prototype wagons, 350000 and 350001, were built at Darlington works in 1964 and 1965 respectively, following which several large batches were constructed at the nearby Shildon works. With the exceptions of the two prototypes built at Darlington and the 160 wagons built at Ashford, all 10,702 HAA wagons and 460 HDA wagons were built there. Most of the early wagons (up to 355396) were originally lettered with B prefix numbers but these were later removed.
While the majority of the wagons were built as HAAs, the final batch (built in 1982 as 368000-368459) were coded as HDA to indicate their ability to operate at up to 60mph when empty instead of the standard 45mph. This was achieved through modifications to the design of the brakes. Another variation, which did not initially result in a change of TOPS code, was the fitting of top canopies to increase the load volume. Many of the early wagons had these but then lost them and for some years canopied hoppers were only common in Scotland.
355798 at Drax Power Station
When MGR services were first introduced, British Rail designed an all-new wagon with air brakes and a capacity for 33 tonnes of pulverised coal. The prototype was a 32-ton unit and was built at Darlington and tested in 1964.[8] Before the introduction of TOPS these wagons were referred to by the telegraphic code name "HOP AB 33", this was an abbreviation of Hopper Air Brake 33 tonne.
With the coming of privatisation to Britain's railways, new wagon types have been introduced by EWS (HTA), GB Railfreight (HYA), Freightliner Heavy Haul (HHA and HXA) and Jarvis Fastline (IIA). These new wagons have increased tonnage and air-operated doors that do away with the need for the "Dalek" release mechanism at the power station end of the trip.[9]
MGR wagon variants
With the introduction of TOPS in 1973, the wagons were given the code "HAA", and with modifications to the wagons other codes have been allocated over the years, including HDA and HMA.
From the early 1990s, further TOPS codes were introduced to show detail differences, such as canopies and modified brakes. Many HAAs became HFAs, while all of the HDAs became HBAs, this code now being available since all the original HBA hoppers had been rebuilt as HEAs. Later codes used were HCA, HMA and HNA.
Code
Description
Speed
Loaded
Empty
HAA
The original design in 1964 of MGR hopper wagons. No canopy or modifications to the wagon.
45mph
55mph
HBA
The wagon has a canopy in addition to the original design.
60mph
60mph
HCA
The wagon has a canopy in addition to the original design.
45mph
55mph 60mph in block formation
HDA
The final batch of 450 MGR coal hoppers, built in 1982
60mph
60mph
HFA
The wagon has an aerodynamic canopy in addition to the original design.
45mph
60mph
HMA
The wagon has modified brakes in addition to the original design.
45mph
60mph
HNA
The wagon has modified brakes and a canopy in addition to the original design.
45mph
60mph
MGR wagon liveries
The livery of these wagons was of unpainted metal hoppers and black underframes. The hopper support framework was originally brown, then red with the introduction of the new Railfreight image in the late 1970s. When Railfreight re-invented itself in 1987, a new livery with yellow framework and a large coal sector logo on the hopper side was introduced. Under EWS the framework is now painted maroon. Merry-go-round hoppers were worked hard however, and the typical livery included a coating of coal dust. Some of the terminals served used stationary shunters to move the wagons forward at low speed. These often featured tyred wheels that gripped the wagon sides, resulting in horizontal streaks on the hopper sides.
The balloon loop and the Daleks
Dalek Mechanisms at Drax Power StationMerry Go Round at Cottam Power Station, 1970–1995
Merry-go-round trains are associated with the construction of balloon loops at the origin and destination so that the train doesn't waste time shunting the engine from one end of the train to the other. However, whilst power stations such as Ratcliffe, West Burton and Cottam had balloon loops, few if any colliery/loading points had them, and thus true merry-go-round operation never really existed.
"Dalek" was the nickname given to the automatic door opening/closing equipment located on the path to and from the bunker in the power station. The nickname was derived from its appearance. Two have been preserved by The National Wagon Preservation Group from Hope Cement Works. They arrived at Barrow Hill on Friday 28 August 2015.
Locomotive control
Locomotives used on the MGR trains needed to be fitted with electronic speed control known as Slow Speed Control, so that the driver could engage the system and the train could proceed at a fixed very slow speed under the loading and unloading facilities. The system was originally fitted to some members of Class 20, Class 26 and Class 47. Later, some members of Class 37 were also fitted, while the system was fitted to all members of classes 56, 58, 59, 60 and 66. Additionally, all Class 50s were originally fitted, although the system was later removed due to non-use.
56039 Port of Hull with a rake of empty wagons at Knottingley
The Class 47 locomotives were replaced by the class 56s in 1977 with an increase of the number of wagons in a train, in most cases to around 30 to 34. This was followed by the Class 58s and the Class 60s. Two of the class 60s were named in honour of the men behind the MGR system, 60092 Reginald Munns and 60093 Jack Stirk. A small number of other locomotives were modified for working MGRs. In Scotland the class 26 and some class 20s and in South Wales some class 37s.
In 1985, Driver Only Operation (DOO) was introduced after a short training session on the wagons which mostly showed how to isolate a defective brake. MGR trains in the Worksop and Shirebrook areas to West Burton and Cottam started running. These trains initially had a yellow painted tail lamp to identify that the train was DOO. As the system rapidly developed, the use of these yellow tail lamps was discontinued on all trains.
The decline in the UK mining industry from the 1980s onwards made many of these wagons redundant. More of the type were replaced when EWS introduced a new batch of 1144 high-capacity bogie coal hoppers (HTA) from 2001. The last location to have coal delivered by MGR wagons was the Hope Cement Works in August 2010.
Coalfish Conversions
Although many HAAs were scrapped for being worn out, approximately 1,000 had donated their underframes to be rebuilt as MHA low-sided box spoil wagons for infrastructure and general use. Conversions have been undertaken since 1997 and the new vehicles have been numbered in the 394001-394999 and 396000-396101 ranges as detailed below in the table. Wagons not converted from MGR wagons have been omitted from the table. An initial order for 250 extended several times until eventually over 1,150 wagons were converted using two distinct body styles.
Number Range
Builder
Dates
Design Code
394001-394400
RFS Doncaster
1997-1998
MH001A
394500-394999
Wabtec, Doncaster and EWS, Margam
2002 - 2004
MH001C
396000-396101
Wabtec, Doncaster
2003 - 2004
MH001C
396102-396165
Marcroft Engineering, Stoke
2007
MH001C
353224 Fowey Docks
China Clay CDA
A batch of fifteen HAAs were rebuilt as china clay hoppers with a canvas roof (CDA), all but one of which were renumbered in the 375124-375137 range and the other being extant 353224 which is listed below. HAA coal hopper number 351297 was the first wagon to be tested at Fowey in 1986. 353224 was the prototype conversion, which was converted at BR Derby Works in 1986, with the 14 HAA wagon conversions completed by RFS Doncaster in 1989.
397000 MSA Scrap Hopper
MSA Scrap Conversions
There were eight HAAs modified as MSA Scrap Hoppers in 2004 and renumbered in the 397000-397008, except 397007. In regards to the modified wagons, 397007 was missing in the sequence because the programme was aborted before conversion of that wagon took place. The wagons were coded MSA due to modifications to the wagon. These wagons had their doors welded shut with stiffeners fitted and the door arms & safety catch strikers had been removed
They proved to be a short-lived idea though, as the light alloy bodies took too much damage from rough use and were withdrawn and scrapped after only one use. It was known to the staff involved in the trial that the wagons would not be up to the heavy-handed task, however the management wanted to continue with the trial regardless.
The first run involved using unmodified MGR wagons, these being 356505, 355148 and 356958. The wagons arrived for loading at EMR Saltley hauled by 66152 on 22nd April 2004. Though there were more wagons available on the train, only 3 wagons were loaded. Loading was by shovel loader and levelled and tamped down with a grab magnet. Discharge was at EMR Liverpool Gladstone Dock on 26th April 2004. The wagons were discharged by magnet.
Extant examples
There are now only three MGR hoppers still remaining on the network, excluding the examples that were successfully converted into china clay covered hoppers
Code
Number
Current Location
Owner
HAA
352295
Falkland Yard, Ayr, Scotland
DB Cargo
HAA
354227
Newport Alexandra Dock Junction Yard, Wales
DB Cargo
HMA
357790
Newport Alexandra Dock Junction Yard, Wales
DB Cargo
Scrapped Examples
Whilst there were over 10,000 of the MGR wagons to begin with, there was only one notable scrapping after their official withdrawal in 2009 due to the wagon being scrapped in error at Newport Docks. The wagon was used as a static buffer on the main dock, however the scrap merchant cut up the wagon in error. This example would have been in line for preservation.
Code
Number
Location Scrapped
Last Owner
HAA
353934
Scrapped in error at Newport Docks, 2018
DB Cargo
Converted Examples
The CDA was introduced in 1987-88 for English China Clay trains in Cornwall, with 124 wagons being built at Doncaster Works. These were given the design code CD002A and were largely based on the design of the HAA coal hopper wagon.
A prototype was converted from a HAA, number 353224, which the National Wagon Preservation Group are custodians of, in 1987 at Derby Works and given the design code CD001A. The hood was provided by G Nevilles Ltd
A further 15 were rebuilt from HAA hoppers in 1989, of which the final three were scrapped in 2024 at Fowey Docks. Those three were used as reach wagons when discharging the main train in the docks.
Preservation
350000 Shildon Museum350002 at Chasewater351111 at Chasewater355798 at Chasewater
The first MGR to be preserved was the Darlington-built prototype, HAA 350000, in October 1995[10] by the National Railway Museum (NRM).
In 2011, The NRM secured the last-built MGR hopper (HDA 368459) and it was appropriately moved to its Shildon outpost in May of the same year.[11]
Notably, in 2014 an appeal was set up called The MGR Appeal to try and preserve another example, this being in the form of HMA 355798. After a successful appeal, it was saved for preservation from DB Schenker. It was formerly stored at their Immingham depot in Lincolnshire. In July 2015, the MGR Appeal was officially formed as National Wagon Preservation Group[12]
10 MGR wagons at the Chasewater Railway
In May 2015, The Chasewater Railway secured three MGR hoppers from Mossend Yard (DBS) and moved them to Brownhills West station.[13] In their statement, it was advised that these three MGRs were the "arrival of the first half of our HAA wagon fleet". The other three likely candidates are the three withdrawn in the Newport Docks area. Since then however, No.353934 which was stored off the tracks was cut up by accident, however the group is still intending to preserve the remaining two examples. The Chasewater and NWPG came together to create Project:MGR which is a collaborative effort to host the MGR wagons and run demonstration trains regularly to the public.
As of 2024, the NWPG and Chasewater Railway have collectively acquired ten MGR wagons and have regular running days throughout the operating season
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