List of British Rail modern traction locomotive classes

This page lists every locomotive allocated a TOPS classification and all modern traction (e.g. diesel, electric, gas turbine, petrol) stock used on the mainline network since 1948 (i.e. British Railways and post-privatisation)..

Diesel locomotives

The 1955 diesel locomotive classes are given in brackets where applicable.

A large number of different shunter types were purchased by British Rail and its predecessors, many of which were withdrawn prior to the introduction of TOPS. The tables below attempt to list the different types and the different classifications used to describe them as clearly as possible:

Small shunters: under 300 hp

Shunter classes are listed by 1955 class, which puts TOPS classes in ascending order, and generally puts 1948 and 1962 classes in ascending order. Unclassed shunters are placed at the start of the table; TOPS class 07 has been placed so its 1962 class is in the logical place.

TOPS Class1948
Class
1955
Class
1962
Class
1948 Numbers1957 Numbers TOPS Numbers Year(s)
built
Quantity
built
Engine Year(s)
withdrawn
NotesScrapped
11104 1950152 hp ("At rail:" 39 hp)1967Renumbered 52 in the ER/NER Departmental series in 1953.[1] 1
13000 19341250 hp1949ex-LMS diesel shunter 7058; BR number never applied [2] 1
DY1D1/11/15 11500–11502D2950–D2952 1954–553153 bhp1966–67[3][4] All
Class 01 DY2 D1/2 1/12 11503–11506, 81 D2953–D2956, D2956 (ii) 01 001–2[5][3][6] 1956–585153 hp1966–81
3
DY5 D1/3 1/16 11507–11508 D2957–D2958 19562165 bhp1967–68

[3][6]

Both
Class 02 D1/4 1/17 D2850–D2869 02 001–4[7][8] 1960–6120170 hp1969–75
7
DY11D2/12/4A 11700–11707D2700–D2707 1953–568200 bhp1964–68[9] All
Class 03 DJ15 D2/2 2/1 11187–11211 D2000–D2199
D2370–D2399
03004–03199, 03370–03399 (with gaps) 1957–61230204 hp1968–93
2008

[5][10]

174
Class 04 DJ12/1 D2/4 2/13 11100–11115 D2200–D2214 N/A (D2341 1948)
1952–62
142 204 hp 1967–72

[5][11] D2341 ordered by LNER but transferred to Southern Region, 4 exported to Italy

124 (1 in preservation)
DJ12/2 D2/13 11121–11229 D2215–D2341 N/A
DJ14D2/52/12A 11177–11186D2400–D2409 1956–5710204 bhp1967–69

[12]

All
D2/72/14 11116–20, 11144–48D2500–D2509 1955–5610204 bhp1967

[13]

Class 05 DJ13 D2/8 2/15A 11136–43, 11161–76 D2550–D2573 05001[5][14] 1955–61 69 204 hp 1966–68, 1983
65
DJ13/2 D2/9 2/15 D2574–D2618
Class 06 D2/6 2/12 D2410–D2444 06001–06010[5][12] 1958–6035204 hp1967–84
06009 as the works pilot at Dunfermline Townhill Wagon Repair Works in July 1975
34
DY11 D2/10 2/4 11708–11719 D2708–D2719 195712225 bhp1967

[15][16]

All
2/4B D2720–D2780 1958–6161225 bhp1967–6859
D2/112/2 D2999 19581180 bhp1967

[17][15]

0
D2/122/14A D2510–D2519 196110204 bhp1967

D2519 employed at NCB until 1984.[18][13]

9
Class 072/16 D2985–D299807001–07014 196214275 hp1973–77 7
D3/13/4 D2900–D2913 1958–5914330 bhp1967[19][4] All
  • Relation between TOPS, 1948, 1955 and 1962 classes, and 1948, 1957 and TOPS numbers:[5][20]

Large shunters: 300–799hp

CLASS NUMBERS Built Quantity Engine Withdrawn Notes Scrapped
TOPS 1948 1955 1962 1948 1957 TOPS
15107 19491360 bhp1958[21] Ordered by GWR 1
11001 19491500 bhp1959[22]
Locomotive 1100

Ordered by SR

1
Class 08 DEJ4 D3/2 3/1 13000–13366 D3000–D4192[23] except those
listed under classes 09 and 10
08001–08958 1953[24]–62[23]996350 bhpstill in use[23]
899 (3 in preservation)
Class 09 D3665–71, D3719–21,
D4099–D4114
09001–09026
09101-09107
09201-09205
1959–62[23]26350 bhpstill in use[23]

10 rebuilt from Class 08

2
D3/3 3/1B 13117–13126 D3117–D3126 195510350 bhp1966–67[25] All
Class 10 DEJ5 D3/4 3/1C 13137–13151[26] D3137–D3151, D3439–D3453,
D3473–D3502, D3612–D3651,
D4049–D4094
N/A 1955–62[26]146350 bhp1967–72[27]
Class 10 (D3452) in BR blue livery at Bodmin General on 28 August 2003
142 (1 in preservation)
DEJ7D3/53/1D 13152–13166D3152–D3166 195515350 bhp1967[25] All
D3/6 12000–12002 193511350 bhp1956–62[28]

ex-LMS diesel shunter

10
D3/73/812003–12032 1939–4230350 bhp1966–67[29]
ex-LMS diesel shunter
All
Class 11 DEJ3 D3/8 3/8A 12033–1213801153 1945–52136350 bhp1967–72[30]
ex-LMS diesel shunter
128 (1 in preservation)
DEJ1D3/93/10 19444350 bhp1967[21] ex-LNER J45 or DES1 Class All
D3/103/11A 19361[20]350 bhp1965[22] Built by GWR
D3/113/11 15101–15106 19486350 bhp1967[22] Ordered by GWR
D3/123/9A 15201–15203 19373350 bhp1964[22]

ex-SR Diesels 1–3

Class 12D3/133/9 15211–15236N/A 1949–5224350 bhp1968–71[22]

Ordered by SR

23
DEJ2D3/143/2 15004 19491[20]360 bhp1962 Ordered by LNER All
Class 137/1 D4500–D450213001–13003 19653[20] 360 bhp1983–1985

Rebuilt from Class 08

  • Relation between TOPS, 1948, 1955 and 1962 classes, and 1948, 1957 and TOPS numbers:[5][20]

Type 1 locomotives: 800 – 1000 hp

CLASS 1957 numbers TOPS numbers Introduced Quantity Engine Withdrawn Notes Scrapped
TOPS 1955 1962
Class 14 (Teddy Bear)N/A6/1 D9500–D9555 N/A 1964–6556700 hp1968–69[31]

5 exported to Belgium (2) and Spain (3).)

32
108001950[32]1[32]827 hp
(rebuilt to 1400 hp)
1959[32]

Built by LMS in 1946, entered service in 1948, sold Brush Traction, rebuilt into research locomotive Hawk.

1
Class 15D8/18/5D8200-D8243 N/A 1957–61[20]44[33]800 hp1968–71[22]

D8203/33/37/43 survived as non-powered electric train pre-heating units at Doncaster until 1981–1989.

43
Class 16D8/28/4[34]D8400-D8409[34]N/A1958[35]10[34]800 hp 1968[34]
All
Class 17 (Clayton Type 1) N/A9/18D8500-D8587 N/A 1962–65[36] 117[36] 2× 450 hp 1968–71[36]

D8512/21/98 survived at the Derby Research Centre until 1978.

87
9/19D8588-D8616All
Class 181985
(Proposed)
Never BuiltNever Built
Class 191900120181DVTstill in use

Built in 1988 as Mark 3 DVT, rebuild as self-powered vehicle in 2018.

0
Class 20D10/310/3[37]D8000-199,
D8300-27[38]
20001–202281957–68[38]228[36]1000 hpstill in use[23]
189 (1 in preservation)
  • Relation between TOPS, 1948, 1955 and 1962 classes, and 1948, 1957 and TOPS numbers (unless otherwise given):[5][20]

Type 2 locomotives: 1001 – 1499hp

Locomotive class are listed by TOPS class. Locomotives for TOPS classes 24 and 26 have their original sub-classes shown, as each wholly comprised locomotives from a distinct 1962 class. Class 21 (II) has sub-classes shown as these are superficially similar but mechanically different types grouped into a single class.

CLASS 1957 numbers TOPS numbers Introduced Quantity Engine Withdrawn Notes Scrapped
TOPS 1955 1962
Class 21 (I) (NBL)D10/110/4 D6100-D6157 N/A 1958–60[35] 58 1000 hp 1967–68

20 rebuilt to Class 29

All
D11/211/41100 hp
Class 21 (II)21/5N/AN/AN/A21544–215472004–0542110 hp still in use
0
21/621610–21611200621500 hp
21/921901–219101991–9251270 hp
20102
20163
Class 22 (Baby Warship)D10/2A10/4AD6300-D6305N/A 1959–62[35] 58[39] 1000 hp 1967–72[39]
All
D11/511/4AD6306-D63571100 hp
Class 23 (Baby Deltic) D11/111/3D5900-D5909 N/A 1959[35]101100 hp1968–71

D5901 survived in departmental use at the Railway Technical Centre until 1975.

Class 24 24/0D11/311/1D5000-D5049 24001–24047 1958–61[35] 50 1160 hp 1967–80

24061 survived in departmental use until 1987

49
24/111/1AD5050-515024051–24101101 98
Class 25D12/112/1D5151–D5299,
D7500–D7677
25001–25327 1961[38]-673231250 hp1984–87[40][41]
303
Class 2626/0D11/411/6D5300-D5319[38] 26001–26046 1958[42] 20[42] 1160 hp 1975–94[42]
13
26/1N/A[20]11/6AD5320-D5346[38]1958[42]27[42] 21
Class 27D12/312/6D5347-D5415[38] 27001–27066 1961–62[20]691250 hp1987
61
Class 28D12/112/5D5700-D5719N/A1958–59[35]201200 hp1967–68[43]
A 'Metrovick' passing through Grange-over-Sands, June 1963

D5705 used by the Research Division until 1980.

19
Class 29N/A13/4D6100-03/06-08/12-14/16/19/21/23-24/29-30/32-33/37N/A1958–60
Rebuilt 1965–1967[20]
201350 hp1969–71

Rebuilt from Class 21

All
Classes 30 & 31D13/1, D14/214/2D5500-D5699,
D5800-D5862
31001–31970 1957[35]-62[38]263 plus 81
conversions
1,250 bhp or 1,365 bhp 1976–2018
217 (10 in preservation)
  • Relation between TOPS, 1948, 1955 and 1962 classes, and 1948, 1957 and TOPS numbers (unless otherwise given):[5][20]

Type 3 locomotives: 1500–1999 hp

CLASS Pre-TOPS
numbers
TOPS numbers Introduced Quantity Engine Withdrawn Notes Scrapped
TOPS 1955 1962
Classes 33 & 34D15/115/6D6500–D6585[20][38] 33001–33065
33101–33119
1960–62 [44] 98[44] 1550 hp still in use (with West Coast Railway Company)[23]
59
D15/215/6AD6586-D6597[20][38] 33201–33212 8
Class 35
(Hymek[45])
D17/217/7D7000–D7100[5] N/A 1961–64[46] 101[46] 1700 hp 1971–1975[47]
97
Class 37D17/117/3D6600-D6608
D6700-D6999[38]
37001–37308 1960–65[48]309[48]1750 hpstill in use[23]
177
Class 381980s
(Proposed)
Never BuiltNever Built
D16/116/810000-10001[20] 1947–48[49] 2[49] 1600 hp 1963
1966[49]

1 built by LMS

All
D16/216/9 10201-10203[20] 1950 (2)
1954 (1)[35]
3[35] 10201/2: 1750 hp (1600 hp from 1957)
10203: 2000 hp
1963
10203 at Bletchley

Ordered by SR

  • Relation between TOPS, 1955 and 1962 classes, and pre-TOPS and TOPS numbers (unless otherwise given):[5][20]

Type 4 locomotives: 2000–2999 hp

CLASS 1957 numbers TOPS numbers Built Quantity Engine Withdrawn Notes Scrapped
TOPS 1955[20] 1962[20]
10100 195112000 hp1958

Nicknamed "The Fell Locomotive", ordered by LMS

1
Class 40D20/120/3D200-D399[38]40 001-40 199 1958–62[38][38]2002000 hp1967 (1)
1975–85[50]

4 survived in departmental stock until 1987.

193
Class 41 (I) (Warship[51])D20/220/4D600-D604[38] N/A 1958–59[46]5[46] 2× 1000 hp 1967[46]

Withdrawn before introduction of TOPS system

All
Class 41 (II) N/A 41001-41002
43000-43001
1972[5]2[5]2250 hp1982

Power cars for Prototype HST

1
Class 41 (III) N/A 1990s
(Proposed)
Never Built Never Built
Class 42 (Warship)D22/122/1D800-D832,
D866-D870[5]
N/A 1958–61[5]38[46] 2× 1135 hp 1968–72[46]

D818/32 survived at Derby and Swindon until 1985

36
Class 43 (I) (Warship)D22/222/2D833-D865[5] N/A 1960–62332× 1100 hp1969–1971
All
Class 43 (II) N/A 43002-43198 1975–82[50]197[50] 1770 hp Still in use[23]

Power cars for the InterCity 125 HST sets

3
Class 44
(Peak[52])
D23/123/1D1-D10[5] 44001-41010 1959–60102300 hp1976–80
8
Class 45
(Peak[52])
D25/125/1D11-D137[38] 45001-45077
45101-45150
1960–63[38]1272500 hp1981–89[50]
126
Class 46
(Peak[52])
N/A25/1AD138-D193[38] 46001-46056 1961[38]562500 hp1977–84

4 survived in departmental stock until 1984–91

53
Class 4727/2D1100-D1111,
D1500-D1999[38]
47 001-47 981 1962–68[38]5122750 hp (later derated to 2580 hp)still in use[23]
492
Class 48D1702-D170647114-47118 1965–66[38]52650 hp1990–91[23]

Re-engined to Class 47, 1969–1971

4
Class 5027/3D400-D449[38] 50001-50050 1967–68[38]50[38]2700 hpstill in use with GB railfreight[53]

Based on the DP2 prototype

32
Class 52
(Western[54])
D27/127/1D1000-D1073[5] N/A 1961–1964742 x 1350 hp1973–77
67
Class 53
Falcon[55]
N/AN/A1200N/A 196112880 hp1975

Prototype locomotive. Not classified until taken into BR stock as no. 1200

1
Class 57 N/A 57001-57012
57301-57316
57601-57605
1965–67
Rebuilt: 1997–2004[23]
33[23]2580 hpstill in use[23]

Rebuilt from Class 47

0

Type 5 locomotives: over 3000 hp

CLASS 1957 numbers TOPS numbers Built Quantity Engine Withdrawn Notes Scrapped
TOPS 1955[20] 1962[20]
Class 51
(Super Deltic)
N/A1960s
(Proposed)
Never BuiltNever Built
Class 55
(Deltic[56])
D33/133/1D9000-D902155001–55022 1961–62[24]22[24]2× 1650 hp1980–82

Based on the DP1 Deltic prototype

16
Class 56N/A 56001-56135 1976–84[57] 135[57]3250 hpstill in use

3 in Hungary[23]

97
Class 58N/A 58001-58050 1983–87[50]50[50]3300 hp1999–2002

Some still in use in France (23) and Spain (13)[23]

9
Class 59N/A 59001-59005
59101-59104
59201-59206
1985–95[58] 15[58]3300 hpstill in use[23]
0
Class 60N/A 60001-60015
60017-60100
60500
1989–93[58]100[58]3100 hpstill in use[23]
1
Class 62N/A1990s
(Proposed)
Never BuiltNever Built
Class 65N/A
Class 66N/A 66001-66249
66301-66305
66411-66434
66501-66599
66601-66625
66701-66789
66846-66850
66951-66957
1998–2015[23]446[23]3300 hpstill in use[23]
2
Class 67N/A 67001-67030 1999–2000[58]30[58]3200 hpstill in use[23]
0
Class 68N/A 68001-68034 2013–2017[59]34[60][59]3800 hpstill in use[59][61]
Class 69 N/A 69001-69016 2020 (Planned) 16 (planned) Under construction Planned conversion of Class 56.[62]
Class 70 (II)N/A 70001-700202009–2011373300 hpstill in use
70801-70817 2011–2017

Electric locomotives

DC electric locomotives

TOPS class Pre-TOPS class Pre-TOPS numbers TOPS numbers Built Quantity Engine Withdrawn Notes Scrapped
Class 70 (I)Southern Railway
Class CC Electrics
20001-20003N/A 1941
1945
1948
31,470 hp 1968
All
Class 71HAE5000–E5023
later E5001–E5024
71001–71014 1958–60242,252 hp1976–77
13
Classes 72 & 73[lower-greek 1]JA or JBE6001–E604973001–73006 73101–73142 1962
1965–67
49600 hp (diesel)
1,600 hp (electric)
still in use
10
Class 74[lower-greek 1]HBE6101–E611074 001–74 010 1958–60
Rebuilt 1967–1968
10650 hp (diesel)
2,500 hp (electric)
1976–1977

Rebuilt from Class 71

All
Class 751960s
(Proposed)
Never BuiltNever built
Class 76EM126000–26055
later E26000–26057
76001–76057 1941 (prototype)
1950–53
581,300 hp1970 (prototype)
1981

Prototype built by LNER

57
Class 77EM227000–27006N/A 1953–547 2,490 hp1968

Sold to Netherlands as NS 1500 Class

4
EB1/EF1 26502-26511 1914–1919101,100 hp 1950–1951
1964

Built by NER (later LNER)

All
EE1 26600 192211,800 hp1950 (never used)
Built by NER
ES1 26500–26501 1903–19042640 bhp1964
Built by NER
1

AC electric locomotives

TOPS class Pre-TOPS class Pre-TOPS numbers TOPS numbers Built Quantity Engine Withdrawn Notes Scrapped
Class 80E1000
E2001 from 1959
N/A 1951
rebuilt 1958
11968

Rebuilt from prototype main line gas turbine-electric locomotive 18100, stored in 1961.

1
Class 81AL1E3001–E3023, E3096–E309781001–81022 1959–1964251968 (2)
1971 (1)
1983–91
24
Class 82AL2E3046–E305582001–82008 1960–62101969 (1)
1971 (1)
1983 (6)
1987 (2)
9
Class 83AL3E3024–E3035, E3098-E310083001–83015 1960–62151975 (1)
1978 (1)
1983 (10)
1989 (3)
83012 (previously E3035) at Doncaster Works
14
Class 84AL4E3036–E304584001–84010 1960–61101979–80
9
Class 85AL5E3056–E309585001–85040 1961–64401981–92
39
Class 86AL6E3101–E320086001–86048, 86201–86252 1965–661002002-date still in use
(with Freightliner)

Some still in use in Bulgaria (7) and Hungary (9)

65
Class 87E3201–E3234 (not carried)87001–87035, 87101 1973–75362003–6
87028 at Crewe in 1988

27 still in use in Bulgaria

12
Class 88 (I) 1983–87
(planned)
Never Constructed Never built
Class 88 (II)[lower-greek 1]88001–88010 2015–1610[63]5400 hp (electric)
940 hp (diesel)
still in use
88003 at InnoTrans 2016
0
Class 8989001 198612001
89001 Doncaster Works

Prototype locomotive

Class 9090001–90050 1987–9050still in use
90001 at Crewe
Class 9191001–91031
later 91101–91122, 91124–91132
1988–91312019-date still in use
91021 at Peterborough in 1992
0
Class 9292001–92046 1993–9646still in use
0
Class 93 (I) 1992–95
(planned)
30
(planned)
Never Constructed
Mock-up of a Class 93

Planned InterCity 250 locomotive; project cancelled in 1992

Never built
Class 93 (II)[lower-greek 1]93001–93010 2020
(planned)
10
(minimum)
5438 hpUnder Construction Option for an additional 10 0

Miscellaneous locomotives

Type Class / number(s) Information
Channel Tunnel Class 22 (II)

SNCF Class BB 22200 class dual voltage electric locomotives used for freight duties through the Channel Tunnel by Railfreight Distribution during 1994–95, prior to the availability of the dedicated Class 92 locomotives. Allocated as Class 22 under TOPS.

Class 9000

Dedicated locomotives used only on Eurotunnel Shuttle services through the Channel Tunnel between Foklestone & Calais. No TOPS classification.

Class 0001

Diesel-electric locomotives used for rescue purposes on the Channel Tunnel network. Classed as 21/9 under TOPS

Class 0031 Diesel locomotives used for maintenance purposes by Eurotunnel on the Channel Tunnel network. No TOPS classification
Departmental Class 97

General departmental locomotives, used for special or engineering duties. Were therefore of many different classes, lumped together for numbering purposes. Forty-seven locomotives allocated Class 97 numbers, including five in subclass 97/6.

Class 97/6
Class 97/6 (97 651, also known as PWM651) at Pitsford and Brampton station

Five diesel shunting locomotives purpose-built for departmental duties on the Western Region in 1953 (number 97650) and 1959 (numbers 97651-654), and originally numbered PWM650-4. Withdrawn 1987–2005.

Various Pre-TOPS Departmental Locomotives
Steam Class 98
Class 98 Vale of Rheidol locomotive taking on water

Used to cover all steam locomotives used on the mainline in Britain. Had particular usage for the three Vale of Rheidol Railway steam locomotives that remained in BR's ownership after the end of mainline steam traction in August 1968, and numbered 98007–98009, although in practice the locomotives retained their former (GWR) numbers 7–9.
Also used for privately owned steam locomotives registered to run on the mainline since 1971, with numbers allocated in the following way:

  • First two digits: 98 (for class 98)
  • Third digit: 0–9 representing the Power Class 0–9
  • Fourth and fifth digits: The last two digits of the locomotive's original number. If this would duplicate an existing number, then the number is increased by 1
Petrol 15097-15099

Petrol powered locomotives built by Simplex, introduced 1919–1925 by the GER and NBR (later LNER (1 built by LNER)), and subsequently inherited by BR.

Gas turbine 18000
18000 at the ORE Arsenal Test Centre in 1988

Prototype mainline gas turbine locomotive built for BR in 1949 by Brown Boveri. Had been ordered by GWR in 1940, but construction was delayed due to World War II.

18100

Prototype mainline gas turbine locomotive built for BR in 1951 by Metropolitan-Vickers. Had been ordered by the GWR in the 1940s, but construction was delayed due to World War II.

Class 99

SS Invicta at Newhaven in 1971

When British Rail implemented the TOPS system for managing their operating stock, ships capable of carrying rail vehicles were incorporated into the system as Class 99. In order to circumvent restrictions of the application software, these ships were entered on TOPS as locomotives, 'hauling' the trains which they carried on board.

Builders' demonstrators

These were locomotives built and owned by private firms, but used by British Railways to test them.

Locomotive Builder Year Fate
D0226 & D0227English Electric1956–60
Experimental diesel-electric locomotive D0226 post-preservation at Haworth

D0226 preserved
D0227 scrapped

D0260 LionBRCWC1962-3

Returned to manufacturer and scrapped in 1964

10800 Hawk
See 10800, above
Brush Traction1962-5

Stripped 1972-6 and used as a stationary generator, scrapped 1976

D0280 Falcon
See Class 53, above
Brush Traction1961-5

Transferred (and later sold in 1970) to BR; withdrawn 1975, scrapped 1976

D9998
See Class D2/11, above
Brush Traction1958Scrapped
DHP1Clayton1963-5Scrapped 1967
DP1 DelticEnglish Electric1955–61
DHP1 "Deltic" at National Rail Museum, Shildon, UK in October 2006

Withdrawn 1961,
preserved

DP2English Electric1962-7
Demonstration locomotive DP2 at Kings Cross in 1963

Destroyed in a collision in 1967, scrapped 1970

GT3
(Gas turbine)
English Electric1961-2

Returned to VF 1962, turbine removed; scrapped 1966

HS4000 KestrelBrush Traction1967–71
Kestrel outside Derby Works during testing in 1968

Sold to Soviet Union 1971; withdrawn 1989, scrapped 1993

JanusYorkshire Engine Company 1956
Demonstration shunter Janus (2787) at Shelton

Sold to Appleby-Frodingham
Steel works; scrapped c.1982

TaurusYorkshire Engine Company 1961

Stripped 1962,
scrapped 1965

Unbuilt locomotives

A number of TOPS class numbers were allocated to proposed locomotives, both diesel and electric, which for many reasons were not proceeded with.

See also

Footnotes

  1. Strickland (1983), p. 140.
  2. Strickland (1983), p. 47.
  3. Williams & Percival (1962).
  4. Strickland (1983), p. 45.
  5. "The all-time guide to the UK Traction Classification System Part 2: Locomotives" (PDF). The RailwayCentre.org. 2 May 2006. Retrieved 18 February 2007.
  6. Strickland (1983), p. 46.
  7. TRC – Classification: Part 2 (2006).
  8. Strickland (1983), p. 44–45.
  9. Strickland (1983), p. 43.
  10. Strickland (1983), p. 31–35.
  11. Strickland (1983), p. 35–39.
  12. Strickland (1983), p. 40.
  13. Strickland (1983), p. 41.
  14. Strickland (1983), p. 41–43.
  15. Strickland (1983), p. 43–44.
  16. "D2708-D2780". TheRailwayCentre.com. Archived from the original on 7 February 2009. Retrieved 22 February 2007.CS1 maint: unfit URL (link)
  17. "D2999". TheRailwayCentre.com. Retrieved 1 December 2017.
  18. "D2510-D2519". TheRailwayCentre.com. Archived from the original on 7 February 2009. Retrieved 22 February 2007.CS1 maint: unfit URL (link)
  19. "D2900-D2913". TheRailwayCentre.com. Archived from the original on 7 February 2009. Retrieved 22 February 2007.CS1 maint: unfit URL (link)
  20. "The all-time guide to the UK Traction Classification System Part 1: Pre TOPS class systems" (PDF). The RailwayCentre.org. 2 May 2006. Retrieved 18 February 2007.
  21. Strickland (1983), p. 62.
  22. Strickland (1983), p. 63.
  23. Fox & Pritchard (2003).
  24. Williams & Percival (1977).
  25. Strickland (1983), p. 56.
  26. "Class 10". The RailwayCentre.com. Retrieved 3 March 2007.
  27. Strickland (1983), p. 56–57.
  28. Strickland (1983), p. 48.
  29. Strickland (1983), p. 49.
  30. Strickland (1983), p. 51–52.
  31. Strickland (1983), p. 65–68.
  32. "Ivatt 800 hp Diesel Electric Locomotive". Southern Email Group. 10 August 2004. Retrieved 17 February 2007.
  33. "Recognition and Equipment information: Class 15". The RailwayCentre.com. Retrieved 17 February 2007.
  34. The Railway Center. "Traction Data – Class 16". The RailwayCentre.com. Retrieved 19 November 2017.
  35. Casserley (1962).
  36. "Recognition and Equipment information: Class 17". The RailwayCentre.com. Retrieved 17 February 2007.
  37. "Class 20". The RailwayCentre.com. Retrieved 17 February 2007.
  38. Marsden (1983).
  39. John Daniel (19 February 2006). "D6300 class introduction". The Western Region Archive. Retrieved 17 February 2007.
  40. "Class 25 Withdrawals: The first fifty withdrawals (May 1971 – October 1980)". British Railways Sulzer Type 2. Retrieved 17 February 2007.
  41. "The last year of the Class 25's: March 1986 – March 1987". British Railways Sulzer Type 2. Retrieved 17 February 2007.
  42. "A Brief History of British Railways Class 26". Centre of Locomotion Numerology. 8 February 1997. Archived from the original on 18 December 2006. Retrieved 17 February 2007.
  43. Marsden 1984, pp. 190, 192.
  44. Chapman (2007).
  45. Ian Allan (1969), p. 42.
  46. Reed (1974).
  47. Coward, Andy (30 January 2008). "Hymeks: The big class with a short life". Rail. No. 584. UK: Bauer Media. pp. 56–59. ISSN 0953-4563.
  48. "Rolling stock : Class 37 English Electric". thejunction.org.uk. 17 August 2006. Retrieved 14 February 2007.
  49. Hunt (2005).
  50. Wood (1989).
  51. Marsden (2011).
  52. Ian Allan (1969), p. 5.
  53. GB Railfreight
  54. Ian Allan (1969), p. 13.
  55. British Railways Locomotives and Other Motive Power: Combined Volume. London: Ian Allan Publishing. 1971. p. 17. ISBN 0-7110-0242-8.
  56. Ian Allan (1969), p. 51.
  57. "Class 56 Locomotive Information". Class 56 Photo Gallery. 8 February 2003. Retrieved 17 February 2007.
  58. Fox, Webster & Hall (2000).
  59. Railways Today (5 January 2012). "DRS orders 15 Vossloh Eurolight locomotives". Railways Today.
  60. "Brand new locomotive hauled trains for TPE". Rail Magazine. 23 May 2016.
  61. "Additional Class 68s for Beacon Rail / DRS". Mainline Diesels. 29 April 2014.
  62. "GB Railfreight on LinkedIn: "We're happy to announce our partnership with Progress Rail, A Caterpillar Company, who will be converting our Class 56's, brought last June into a new Class 69. The converted locomotives will offer additional power to help address our growing demand for heavy freight locomotives across the country, with reduced fuel consumption and greatly improved emissions. Compared with the Class 56, the reclassified Class 69 locomotives, will feature an enhanced driving cab environment as well as improved electronic control system. The first prototype is expected in May 2020 and will hopefully enable us to expand operations significantly."". www.linkedin.com. Retrieved 3 April 2019.
  63. "DRS orders 10 electro-diesel locomotives from Vossloh".

References

  • Casserley, H. C. (1962). Observer's Book of Railway Locomotives of Britain. Observer's pocket series #23 (Revised ed.). London: Frederick Warne.
  • Chapman, Stephen (2007). "British Rail Diesels: The "Crompton" (Class 33)". Retrieved 14 February 2007.
  • Fox, Peter; Pritchard, Robert (2003). British Railway Pocket Book No. 1: Locomotives. Sheffield: Platform 5. ISBN 978-1-9023-3626-8. OCLC 655364009.
  • Fox, Peter; Webster, Neil; Hall, Peter (2000). British Rail Motive Power Combined Volume 2000. Sheffield: Platform 5. ISBN 1-902336-13-5.
  • Hunt, David (2005). LMS locomotive Profiles Vol. 9: Main Line Diesel-Electrics Nos. 10000 and 10001. Wild Swan Publications. ISBN 1-905184-04-2.
  • Ian Allan (1969). British Railways Locomotives and Other Motive Power: Combined Volume. London: Ian Allan Publishing. ISBN 0-7110-0112-X.
  • Marsden, Colin J. (1983). British Rail Motive Combined Volume 1983. Shepperton: Ian Allan Publishing. ISBN 0-7110-1284-9.
  • Marsden, Colin J. (November 1984). BR Locomotive Numbering. Shepperton: Ian Allan. ISBN 0-7110-1445-0. EX/1184.
  • Marsden, Colin J. (2011). Diesel and Electric Locomotive Recognition Guide. Ian Allan Publishing. ISBN 978-0-7110-3637-6.
  • TRC - Classification: Part 2 (2 May 2006). "The all-time guide to the UK Traction Classification System Part 2: Locomotives" (PDF). The RailwayCentre.org. Retrieved 18 February 2007.
  • Reed, Brian (1974). Diesel-Hydraulic Locomotives of the Western Region. David and Charles. ISBN 0-7153-6769-2.
  • Strickland, David C. (September 1983). Locomotive Directory: Every Single One There Has Ever Been. Camberley, Surrey: Diesel and Electric Group. ISBN 978-0-9063-7510-5. OCLC 16601890.
  • Williams, Alan; Percival, David (1962). British Rail Locomotives Combined Volume 1962. London: Ian Allan Publishing.
  • Williams, Alan; Percival, David (1977). British Rail Locomotives and Multiple-Units including Preserved Locomotives 1977. London: Ian Allan Publishing. ISBN 0-7110-0751-9.
  • Wood, Roger (January 1989). British Rail Motive Power Combined Volume 1989. London: Ian Allan Publishing. ISBN 0-7110-1849-9.
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