British carriage and wagon numbering and classification

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A number of different numbering and classification schemes have been used for carriages and wagons on Britain's railways, and this page explains the principal systems. Carriages and wagons (either not self-propelled, or part of a multiple unit which has power units distributed throughout a semi-permanent formation of carriages) have frequently had similar arrangements for classification and numbering, so are considered together. There are also links to other pages that deal in greater depth with the particulars of individual types.

Note on classification[edit]

Carriage and wagon classification has never been quite the same as locomotive and multiple unit classification. For most railways, specific types were identified by their Diagram Number. This could simply be arranged by consecutive number, or there could be some greater organisation of numbers so that similar types were grouped together.

However, carriages and wagons have rarely been referred to in general terms by their Diagram Number. Instead there have been a variety of other codes and designations, referring to generic designs rather than specific types. For instance, there were the BR (adapted from the LNER system) and LMS carriage codes, which indicated interior layout or usage. The GWR identified their non-passenger carriages and wagons through a series of animal designations, including sea life for departmental (non-revenue earning) stock, followed by a letter for detail differences, e.g. Beetle A.

The majority of the sections below deal solely with carriage and wagon numbering series, though where a particular classification system was used this is also described.

Pre-nationalisation arrangements[edit]

Before nationalisation in 1948, each railway company had its own numbering arrangements.

  • The Southern Railway followed a similar approach, but used two series; for passenger carriages and for non-passenger carriages.
  • The Great Western Railway Diagram Numbers included a letter to indicate the general layout or usage, followed by a serial number issued consecutively.

British Railways[edit]

British Railways inherited the stock of the 'Big Four' and a substantial number of 'Private Owner' wagons. It also inherited the stock of the Pullman Car Company when it was nationalised in the late 1950s.

Numbering system[edit]

Arrangements at Nationalisation[edit]

The numbers of carriages and wagons inherited from the 'Big Four' companies were left unchanged, but with a prefix letter to show where they had originated from, as follows:

E: London & North Eastern Railway
M: London Midland & Scottish Railway
S: Southern Railway
W: Great Western Railway

A "D" prefix in front of the regional prefix indicated departmental (non-revenue earning) stock. Departmental stock (including locomotives) inherited from the Southern Railway carried numbers with an "S" suffix (indicating Service stock, an alternative term for departmental) which was deleted and replaced with the "DS" prefix.

Former 'Private Owner' wagons, owned by industrial concerns rather than the railway companies, had a prefix letter "P" but were renumbered into a new series commencing at 3000.

Some carriages and wagons built by British Railways to the designs of the 'Big Four' companies were numbered in their series and carried the appropriate letter prefix. BR then introduced its own number series, for wagons beginning with B. Initially most designs were based on, or similar to, those of the pre-Nationalisation companies.

Arrangements from 1951[edit]

In 1951, the first carriages built to British Railways' designs appeared, known as the 'Mark I'. Numbers had a prefix letter (or letters) to indicate the region to which the carriage was allocated. The inherited carriages then had a suffix letter indicating the region responsible for heavy maintenance, usually the same as the company of origin.

New carriages had no suffix: when Pullman Car Company carriages were added, their numbers carried a suffix (indicating regional allocation) but no prefix.

The regional allocation letters used were:

E: Eastern Region
GE: Great Eastern lines
M: London Midland Region
NE: North Eastern Region
S: Southern Region
SC: Scottish Region
W: Western Region

Wagons retained the existing prefixes indicating their origin, and new stock built to British Railways designs was given a "B" prefix.

British Railways adopted the following numbering system for carriages and wagons built to its own designs (a small number of types built to pre-Nationalisation designs were later allocated numbers in this series, but only following rebuilding to new types):

1 - 499 First class Restaurant & Kitchen
500 - 999 Pullman (after Pullman Car Company nationalised)
1000 - 1999 Third class & Unclassified Restaurant & Kitchen
2000 - 2399 First class Sleeper
2400 - 2499 Composite Sleeper
2500 - 2899 Third class Sleeper
2900 - 2999 Royal saloons (later all Royal Train)
3000 - 3499 First class Open
3500 - 3699 Second class Open
3700 - 9199 Third class Open
9200 - 12999 Third class Brake Open
13000 - 13999 First class Corridor
14000 - 14999 First class Brake Corridor
15000 - 20999 Composite First & Third class Corridor
21000 - 23999 Composite First & Third class Brake Corridor
24000 - 33999 Third class Corridor
34000 - 39999 Third class Brake Corridor
40000 - 49999 Non-gangwayed
50000 - 54999 Single-ended Driving Motor Diesel Mechanical Multiple Unit
55000 - 55999 Double-ended Driving Motor Diesel Mechanical Multiple Unit
56000 - 58999 Driving Trailer Diesel Mechanical Multiple Unit
59000 - 59999 Trailer Diesel Mechanical Multiple Unit
60000 - 60999 Diesel Electric Multiple Unit
61000 - 67999 Motor Electric Multiple Unit
68000 - 68999 Parcels Electric Multiple Unit
69000 - 69999 Restaurant and Kitchen Electric Multiple Unit
70000 - 74999 Trailer Electric Multiple Unit
75000 - 78999 Driving Trailer Electric Multiple Unit
79000 - 79999 Diesel Multiple Unit (pre-Modernisation Plan)
80000 - 80299 Kitchen
80300 - 80499 Travelling Post Office
80500 - 99999 Hauled non-passenger carrying

Numbers 100000 to 999999 were used for non-passenger rated stock (including wagons, vans and departmental (non-revenue earning) carriages), while internal user vehicles (stock used for internal purposes (e.g. stores) at specific locations and unlikely to move) took numbers in the 0xxxxx series. For more details see below.

Initially some non-gangwayed carriages were numbered in the 5xxxx series, but these were renumbered 4xxxx when the Modernisation Plan Diesel Multiple Units started to arrive. Another change came when Third Class was renamed Second Class. There had been very few Second Class carriages before this change (mainly used in Boat Trains since ships still used all three classes), and most were absorbed into former Third Class carriages, although they had fewer seats.

The same series was used for 'Mark II' coaches built in the 1960s, but when 'Mark III' carriage was introduced in the early 1970s new number ranges were carved out of the old series. These new ranges were perpetuated for 'Mark IV' carriages in the 1980s, and were as follows:

10000 - 10499 Restaurant and Kitchen
10500 - 10999 Sleeper
11000 - 11899 First class
11900 - 11999 Composite First & Second class
12000 - 12999 Second class
40000 - 40999 High Speed Train Restaurant & Kitchen
41000 - 41999 High Speed Train First class
42000 - 42999 High Speed Train Second class
43000 - 43999 High Speed Train Driving Motor
44000 - 45999 Second class Brake
48000 - 48999 Advanced Passenger Train Trailer
49000 - 49999 Advanced Passenger Train Motor
82000 - 82999 Driving Van Trailer

Diesel multiple unit builds in the 1980s utilised the 52xxx, 55xxx, 57xxx and 58xxx series for carriages, all of which were motored. The 55xxx and 58xxx contained a mix of driving and non-driving motors, but the 52xxx and 57xxx cars were all driving motors. Some series have been used for conversions of carriages, e.g. 63xx has been used for a variety of miscellaneous carriages, including generator vans and observation saloons. Privately owned carriages were allocated numbers in the 99xxx series, with bullion and exhibition vans.

A major change in 1983 when prefix and suffix letters was abandoned, and any carriage that had the same number as another carriage or a locomotive was renumbered. The programme worked as follows:

14000-14999 to 17000-17999 to avoid clashing with Southern Railway carriages
16000-16499/
15500-15999
to 7000-7999 to avoid clashing with Southern Railway carriages
25000-26999 to 18000-19999 to avoid clashing with Class 25 and 26 locomotives
40000-40099 to 40400-40499 to avoid clashing with Class 40 locomotives
50000-50999 to 53000-53999 to avoid clashing with Class 50 locomotives
56000-56999 to 54000-54999 to avoid clashing with Class 56 locomotives
81000-81999 to 84000-84999 to avoid clashing with Class 81 locomotives
85500-85599 to 94000-94099 to avoid clashing with Class 85 locomotives
86000-86999 to 93000-93999 to avoid clashing with Class 86 locomotives

Further renumberings have taken place as new locomotives were introduced. Most have involved only a handful of carriages, but a major one saw carriages in the 920xx series renumbered 929xx when Class 92 locomotives were introduced.

This series has been perpetuated, though the series have been adapted for new generation multiple unit stock. For instance, the latest diesel multiple units have reused the 50xxx and 79xxx series for driving motors and the 56xxx series for non-driving motors. In the electric multiple unit series, Class 390 Pendolinos have reused the 68xxx and 69xxx series.

When BR began to build air braked wagons they had B prefixes, but this was dropped and six-figure numbers were used without prefix. Prefixes were re-introduced when wagons were transferred to the departmental/engineer's fleets.

Departmental and Internal User Stock[edit]

Most departmental and internal user vehicles are converted from revenue-earning stock; only a small number are built for non-revenue earning use. Initially stock inherited from the 'Big Four' companies was given regional prefixes (e.g. DE, DM, DS and DW) indicating their origin, and adapting existing number series.

From about 1951, British Railways started to use new numbering series for additions to departmental and internal user stock on a regional basis, as follows:

Region Departmental Carriages Internal User Stock
London Midland DM395000 onwards 020000 onwards
Eastern and North Eastern DE320000 onwards 040000 onwards (a separate series commencing at 042000 was initially used for the North Eastern Region but later abandoned and these numbers have now been reused by the Eastern Region series)
Western DW150000 onwards Various series used in 06xxxx and 07xxxx ranges (only that commencing at 060900 now in use)
Southern DS1 onwards (existing SR series) and DS70000 onwards (from 1957) 080000 onwards
Scottish No separate series used 095xxx, 096xxx, 097xxx and 099xxx series used

No prefix letters were used for internal user stock. Departmental wagons (and some passenger-rated non-passenger carrying coaching stock) often kept their original revenue earning stock number, but with the addition of the "D" prefix. On some occasions, passenger coaches that had been converted for use as wagons then entered departmental stock retaining their wagon number (most notably brake vans in the 963xxx series that were formerly passenger brake vehicles).

By the end of the 1960s, British Rail-built carriages were entering departmental stock and being allocated one of the regional prefixes according to their location, but from 1967 the "DB" prefix was introduced for all additions to departmental stock regardless of origin. This prefix was prefixed with a letter to indicate the use of the vehicle, as follows:

A: Mechanical & Electrical Engineers
C: British Rail Engineering Ltd
K: Signalling & Telecommunications
L: Mechanical & Electrical Engineers Electrical Construction
R: Research
T: Traffic
X: Stores
Z: Public Relations & Publicity

The principal numbering series for carriages with the "DB" prefix have been 975xxx, then 977xxx. The latest series to be used is 971xxx. Carriages built new into departmental stock have usually been numbered in the 999xxx (and sometimes 998xxx) series (though this series also contains some conversions too).

Also in the early days of the "DB" prefix, some departmental locomotives were numbered in the 966xxx and 968xxx series, though in recent years those locomotives that remain self-propelled have been allocated locomotive Class 97.

TOPS CARKND classification system[edit]

When the Total Operations Processing System was introduced by British Railways, classifications were applied to all carriages and wagons and recorded in a field called CARKND, which is now also used to refer to the classification system as a whole. The classification comprises three letters, the first of which indicates the broad type, as follows:

A: Hauled passenger carriages
B: Bogie Steel wagons (excluding coil-carrying wagons until 1984[1])
C: Covered bulk wagons (except CA: goods brake vans)
D: Diesel Multiple Unit carriages
E: Electric Multiple Unit carriages
F: Flat wagons
G: High Speed Train carriages
H: Hopper wagons
I: Ferry wagons (International wagons)
J: Private owner bogie wagons (bogie steel coil wagons until 1984[1])
K: Private owner special wagons (2-axle steel coil wagons until 1984[1])
L: Advanced Passenger Train carriages (includes Eurostar and Siemens Velaro)
M: Mineral wagons
N: Hauled non-passenger carriages
O: Open wagons
P: Private owner 2-axle wagons (originally all private owner wagons)
Q: Hauled departmental (non-revenue) carriages
R: Railway operating vehicles: Barrier wagons, Adaptor wagons, Runners and Diesel Brake Tenders
S: 2-axle steel wagons (excluding coil-carrying wagons until 1984[1])
T: Tank wagons
U: International hauled coaching stock (Uncovered bulk wagons until 1984[1])
V: Vans
W: Flat wagons
X: Unused (Exceptional and Special use wagons until 1984[1])
Y: Departmental bogie wagons
Z: Departmental two-axle vehicle (carriage or wagon)

The second letter gave more detailed information, different for each series. The tables below list the variations for carriages:

   A Series
AA: Corridor
AB: Brake Corridor
AC: Open (2+2 seating)
AD: Open (2+1 seating)
AE: Brake Open
AF: Driving Brake Open
AG: Micro-Buffet
AH: Kitchen Buffet
AI: Open (2+2 seating) - end of Mark IV rake
AJ: Restaurant Buffet
AK: Kitchen
AL: Open (2+2 seating) - with disabled persons' toilet
AM: Restaurant
AN: Miniature Buffet
AO: Private Owner
AP: Pullman Kitchen
AQ: Pullman Saloon
AR: Pullman Brake
AS: Sleeping
AT: Royal Train
AU: Sleeping (with pantry)
AV-AY: Barrier vehicles
AX: Generator Van (Until 1987: Narrow gauge)
AY: (Until 1987: Narrow gauge Brake)
AZ: Special saloon
   D and E Series
xA: Driving Motor
xB: Driving Motor Brake
xC: Non-driving Motor
xD: Non-driving Motor Brake
xE: Driving Trailer
xF: Battery Driving Trailer
xG: Driving Trailer Brake
xH: Trailer
xI: Battery Driving Motor
xJ: Trailer Brake
xN: Trailer Buffet
xO: Battery Driving Trailer Brake
xP: Driving Motor (Diesel Mechanical Multiple Unit only)
xQ: Driving Motor Brake (Diesel Mechanical Multiple Unit only)
xR: Non-driving Motor (Diesel Mechanical Multiple Unit only)
xS: Driving Trailer (Diesel Mechanical Multiple Unit only)
xT: Trailer (Diesel Mechanical Multiple Unit only)
xU: Trailer Brake (Diesel Mechanical Multiple Unit only)
xX: Non-passenger Driving Motor and single-car passenger DMMUs
xY: Non-Passenger Non-driving Motor
xZ: Departmental stock
   G and L Series
xC: Motor
xE: Driving Trailer
xF: Barrier Vehicle
xH: Trailer
xJ: Trailer with Guard's compartment
xK: Trailer Kitchen with Buffet
xL: Trailer Kitchen
xM: Trailer Kitchen with Lounge
xN: Trailer Buffet
   N Series
NA-NI: Gangwayed Brake vans
NF: Brake van (non-gangwayed)
NG: Car-carrying flat wagon
NJ-NK: General Utility van
NL-NM: Newspaper van
NN: Courier vehicle
NO-NQ: Parcels van
NR: Container van
NS: Post Office Sorting van
NT: Post Office Stowage van
NU: Post Office Stowage Brake van
NV: Car-carrying van
NW: Bullion van
NX: Motorail van
NY: Exhibition van
NZ: Driving Van Trailer
   Q, Y and Z Series
xA-xC: Ballast and sleeper wagons
xD: General materials wagon
xE: Runner wagon
xF: Ballast hopper wagon
xG: General materials wagon
xH: Spoil wagon
xI: Crane
xJ: Tracklayer
xK-xM: Ballast wagon
xN: Steel wagon
xO: Crane (travelling)
xP: Staff or dormitory vehicle
xQ: Tool vehicle
xR: Stores or materials vehicle
xS: Operating vehicle (e.g. barrier, generator)
xT: Brake van
xU: Brake van plough
xV: General equipment vehicle (e.g. flat wagon)
xW: On-track plant, saloon or self-propelled vehicle
xX: Specialist equipment vehicle
xY: Electrification equipment vehicle
xZ: Miscellaneous vehicle (e.g. snowplough, unpowered former locomotive)

The final letter indicated the braking arrangements. Nowadays almost all stock is air-braked, but when TOPS was introduced there was much greater variety, which made marshalling trains more complicated and this information essential. The letters were:

A: Air brake only
B: Air brake plus through vacuum pipe
D: Electronic control
E: Electro-pneumatic brake
F: Vacuum brake (AFI equipment) [AFI: Accelerator Freight Inshot - a rapid-acting vacuum brake[2]]
G: Vacuum brake plus through air pipe (AFI equipment)
H: Dual brake (AFI equipment)
O: Unfitted (handbrake only)
P: Unfitted with through vacuum pipe
Q: Unfitted with through air pipe
R: Unfitted with through air and vacuum pipes
V: Vacuum brake only
W: Vacuum brake plus through air pipe
X: Dual brake (air and vacuum)
Y: Unfitted (Civil Engineer's self-propelled stock)
Z: Automatic brake of unknown working order[2]

See also[edit]

References[edit]

  1. ^ a b c d e f Marsden, Colin J. (1984). BR and Private Owner Wagons. Rolling stock recognition 2. Shepperton: Ian Allan. p. 6. ISBN 0-7110-1403-5. 
  2. ^ a b Hendry, Robert (2003). British Railway Goods Wagons in Colour 1960-2003. Hinckley: Midland Publishing. p. 94. ISBN 1-85780-170-9. 

External links[edit]