Freight locomotives

English Electric 6KT diesel, 2 x EE 506 DC traction motors

In use as depot and yard shunters. Class 08 count by operator in 2026 is only partly known; weight 49-51 long tons (49.8-51.8 t).

• Single secondary source for length, width, height, wheel diameter (Wikipedia).
• Power: 350 or 400 hp (261 or 298 kW) in the infobox; 400 hp/298 kW used here.
• Class 08/9 height is 11 ft 10 in (3,597 mm; Wikipedia).
• Total in freight and yard service is to be confirmed; the Wikipedia operator list is from 2022 and says 'about 100 in service'.

English Electric 6KT diesel

GBRf lists 09002 for sale. Few remain in freight use.

• Single secondary source (Wikipedia) for dimensions; engine power flagged 'dubious' on the page.

JCB DIESELMAX 430 diesel generator plus 524 kWh lead-acid batteries; DC motors

GBRf leased four from Beacon (Aug 2024); Tata Steel and Sellafield also use the type.

• Length, height, width, bogie data not stated.
• Single secondary source.

English Electric 8SVT Mk.II diesel; EE 526 DC motors

Few in freight/industrial use: HNRC/Swietelsky (Hope Cement Works), Balfour Beatty (Drain Train). Infobox '6 in service' is undated.

• Wikipedia gives pivot centres 24 ft 0 in (7,320 mm) and overall wheelbase 32 ft 6 in (9,910 mm); no bogie wheelbase.
• Single secondary source for all dimensions.
• No current count by operator.

English Electric 12CSVT; DC motors (37/4+ Brush alternator)

Still working: Colas infrastructure/freight, Europhoenix (hired to ROG), Loram (37418), HNRC; DRS retired its fleet in 2024; Network Rail uses rebuilt 97/3. 80 mph (129 km/h) with CP7 bogies; weight 102-107 t (37/7 ballasted to 122 t).

• Single secondary source for dimensions. 61 ft 6 in (18,750 mm) is the infobox 'length' (not stated as over buffers).
• Bogie data not given (overall wheelbase 50 ft 8 in (15,440 mm)).
• Per-operator counts are 2024-26 Wikipedia/RAIL figures; the Wikipedia table counts and number lists disagree for LSL and HNRC.
• Power given is the engine rating for the class; refurbished sub-classes differ.

Ruston-Paxman 16RK3CT diesel; Brush TM73-62 motors

Run down at Colas during 2025 (two stood down Feb 2025); DCRail has 56103 in traffic, 56091 stored and 56301 bought from preservation in Mar 2025. 16 rebuilt as Class 69. 2026 working count unknown.

• Wheel diameter not on the Class 56 page; the Class 69 page gives 3 ft 9 in (1,143 mm) for the rebuilt body (not recorded here).
• Bogie data not on the Class 56 page; see Class 69 (bogie wheelbase 4,100, pivot centres 14,480).
• 2,400 bhp (1,790 kW) at rail.

EMD 16-645E3C two-stroke V16; 6 x EMD D77B motors

Heavy Haul Rail 14 (13 active, 59104 stored), GBRf 59003 (for sale). Mendip Rail page lists eight, which conflicts. 59/2 max 75 mph (121 km/h). GBRf's page gives 121 t.

• Weight 126 t (Wikipedia) vs 121 t (GBRf page): conflict; Wikipedia value used.
• Bogie centres field is the Wikipedia 'pivot centres' value 43 ft 6 in (13,259 mm).
• Dimensions single-source (Wikipedia).

Mirrlees Blackstone 8MB275T; 6 x Brush TM2161A

Slowly returning: GBRf 7 in traffic of 10, Europhoenix/DBIH 66 owned with a handful active (60062, 60063, 60074), DCRail part-active (17 listed). DB Cargo has sold its fleet. Weight 129 or 131 t; 'wheelbase' on Wikipedia is 50 ft 2 in (15.3 m; not bogie centres).

• Bogie centres, bogie wheelbase and wheel diameter are to be confirmed.
• Wikipedia infobox says 3,100 bhp (2,300 kW) engine; 2,415 bhp (1,801 kW) at rail.
• Total in service is to be confirmed: GBRf 7 + Europhoenix 3 + DCRail 1+ is only a floor.
• Dimensions single-source (Wikipedia).

EMD 12N-710G3B-T2 two-stroke V12 (139.6 L); 6 x EMD D43TRC motors; 1,850 kW at the rail

Backbone of GB freight. 129.6 t is the UIC II/Stage IIIA weight; original spec 127 t (GBRf's page 127 t). Sub-classes: 66/0 DB Cargo 223 built; 66/3 16; 66/4 24 (intermodal, 75 mph (121 km/h)); 66/5 81; 66/6 28 (65 mph (105 km/h), regeared); 66/7 99 (GBRf); 66/8 5 (Colas 66846-850); 66/9 7 (66951-957, low-emission, reduced fuel).

• Length: 70 ft 3 in (21,400 mm; Akiem and DB Cargo agree) vs 70 ft 2 in (21,390 mm; Wikipedia) vs 70 ft 1 in / 70 ft 3 in (21,360/21,410 mm; loco-info); 21,400 recorded.
• Height 12 ft 10 in (3,910 mm) and width 8 ft 8 in (2,630 mm) are Wikipedia-only (single secondary).
• Bogie wheelbase: 13 ft 7 in (4,150 mm; 2007 Wikipedia mirror) vs 13 ft 9 in (4,190 mm; loco-info 'rigid wheelbase'): conflict, left null. Bogie centres and wheel diameter are to be confirmed (overall wheelbase 56 ft 9 in or 57 ft 1 in (17.29 or 17.41 m)).
• in_service_total null: operator counts are of different dates (DB 137 + GBRf 104 + Freightliner 46 + HHR 58 + DRS 19 + Colas 5 = 369, an indicative sum only).
• Counts of 66 per operator are partly from Wikipedia (GBRf, DRS, Colas) and not cross-checked.
• drawing indicative (set FRL1, October 2026): the outline, layout, heights and bogies measured on a level photograph of 66702 (rectified by its 70 ft 3 in (21,400 mm) over buffers), the details from 66073, 66591 and 66598; the bogie centres (43 ft 4 in (13,220 mm) apart) from loco-info's overall and rigid wheelbases, the 3 ft 4 in (1,020 mm) wheels by ratio on 66591
• drawing: the right-hand side only (the No. 1 end to the right); the left-hand side's grilles differ and are not drawn
• liveries' colours from photographs, approximate; DRS's from one weathered photograph

EMD 12N-710G3B-EC; 4 x EMD D43FM motors

Wikipedia infobox 21 in service, 8 stored, 1 scrapped (June 2026). Some leased to Transport for Wales; Royal Train 67005 and 67006. Weight 88-90 t.

• Length 64 ft 8 in (19,710 mm) confirmed by Wikipedia and DB Cargo page.
• Height, width, bogie wheelbase 2,800, bogie pivots 11,630, wheel diameter 965: Wikipedia only.
• 2,500 hp (1,864 kW) at rail is flagged 'citation needed'.
• Operator counts partly out of date.

Caterpillar C175-16 diesel; ABB AC/AC; 4 nose-suspended motors

34 built. DRS about 20 for freight and nuclear, 14 with Chiltern Railways (passenger). Fuel tank up to 5,600 L (Stadler) vs 5,000 L.

• No length, height, width, bogie data found in either source: the Stadler data sheet has no dimensions.
• Weight 'approximately 85 t' and wheel diameter 3 ft 7 in (1,100 mm) are Wikipedia only.
• hp 3,750 = 2,800 kW converted; Wikipedia gives 3,800 hp (mechanical).

EMD 12N-710G3B-T2 two-stroke V12 (139.6 L); original motors overhauled

69001-69016, all GBRf. Several in heritage and special liveries (see livery list). 128 t from GBRf's page.

• Dimensions single-source (Wikipedia). Pivot centres 47 ft 6 in (14,480 mm) recorded as bogie centres.
• Wikipedia says the withdrawal of seven in service in Jan 2023 and does not state current availability.
• Weight from GBRf's page only.

GE PowerHaul P616 diesel; 6 AC traction motors (Wikipedia: GE 5GEB30 axle-hung)

19 with Heavy Haul Rail (16 active, 3 stored; 70012 a test bed), 17 with Colas (70801-817). 2,250 kW at the wheel rim. Max speed 120 km/h (75 mph; Akiem) = 75 mph (121 km/h).

• Length and weight confirmed by Akiem (lessor) and Wikipedia; height, width and wheel diameter Wikipedia only.
• Bogie centres and bogie wheelbase are to be confirmed.
• in_service_total 36 = 19 + 17; includes stored and test-bed locos.

750 V DC third rail (1,600 hp one-hour); 73/1: EE 4SRKT diesel 600 hp; 73/9: Cummins QSK19 or MTU 8V 4000 R43L

GBRf: 9 x 73/1 and 11 x 73/9 (5 'Tier 1' for Network Rail, 6 'Tier 2' for Caledonian Sleeper, passenger). Network Rail sold its two 73/9 in 2023. Weight 76.8 long tons (78.0 t) Wikipedia; 77 t GBRf page.

• Height, width and bogie dimensions not on the page.
• 73/9 diesel power (1,500 hp) differs from the 73/1 class figure (600 hp / 447 kW).
• Length 53 ft 8 in (16.36 m) is not stated as over buffers.

25 kV AC pantograph; Caterpillar C27 Stage IIB diesel (708 kW); ABB AC/AC

88001-88010, all with DRS, owned by Beacon. Diesel power 708 kW (Stadler; Wikipedia 700 kW). 21.5 t axle load.

• No length, height, width, bogie data in either source.
• Weight and wheel diameter Wikipedia only.

25 kV AC; 4 x GEC 412 motors

Freightliner (CMA CGM) 27 plus 90050 on loan to Crewe Heritage Centre; LSL 3 for charters; DB Cargo's fleet is stored or scrapped. in_service_total is the Freightliner freight fleet (27); 50 were built.

• All dimensions are Wikipedia only (length 61 ft 6 in (18.75 m) not stated as over buffers).
• Wikipedia fleet counts are internally inconsistent (25 vs 28 in service).

6 x Brush asynchronous AC motors; 25 kV overhead or 750 V third rail

GBRf 12 (Caledonian Sleeper and Channel Tunnel freight); DB Cargo 4 active of a stored fleet; 13 exported to Bulgaria and Romania, more to Croatia. GBRf's page says 90 mph (145 km/h) and 126 t. RAIL (Oct 2026): increasingly unreliable.

• Length 70 ft 1 in (21,360 mm) and weight 126 t confirmed by Wikipedia and DB Cargo; GBRf agrees on weight.
• Height, width, bogie wheelbase 4,290, pivot centres 12,764, wheel diameter: Wikipedia only (the 'Bogie' field read as bogie wheelbase).
• Power 5.04 MW on 25 kV, 4.00 MW on 750 V.
• in_service_total null: about 46 built, only a small number work.

25 kV AC (4,000 kW, boost 4,600), CAT C32 Stage V diesel (900 kW), two LTO batteries (400 kW)

Ten delivered to ROG; entered service Oct 2025; trial runs for DB Cargo (10 Feb 2026) and Freightliner; stored at DRS Gresty Bridge; no regular freight contract yet. Width 8 ft 10 in (2,690 mm) is the carbody width.

• Weight 86 t is Wikipedia only.
• Height, bogie data and wheel diameter are to be confirmed.
• Power hp 5,360 = 4,000 kW converted.

97301 (stored), 97302, 97303 'Dave Berry', 97304 'John Tiley'; autumn rail-head treatment and ERTMS tests on the Cambrian lines.

• No specifications on the 97 page: see Class 37 for the donor values.
• Livery colours are to be confirmed.

25 kV AC (6,170 kW at wheel rim) plus Cummins QSK50 Stage V diesel (1,790 kW); AC/AC; HVO fuel; tractive effort 500 kN

99001 first commercial train 28 July 2026; at least 99001-99013 delivered by Sept 2026 (99013 appears in a RAIL report). 99001-020 no train supply, 99021-030 with ETS (for Belmond). 13 more may be ordered for Caledonian Sleeper (not confirmed).

• Length, height, width, bogie centres, bogie wheelbase, wheel diameter: NOT in the Stadler data sheet or anywhere read.
• Weight 113 t from Wikipedia and GBRf's page (two sources).
• Delivered count (13) is derived from the highest number seen in a RAIL report; Wikipedia said 7 delivered at May 2026.