British Rail Class 307

British Rail Class 307
Class 307 at Wakefield Westgate in 1991
Inside a refurbished unit
In service1956–1993[1]
ManufacturerBritish Rail
Order no.
  • 30203 (MBS)
  • 30204 (TCsoL, later TSOL)
  • 30205 (DTS, later DTBS then BDTBSO)
  • 30206 (DTSOL, later DTCOL)[1][2]
Built at
Constructed1954–1956[2]
Entered service1956[1]
Refurbished
  • 1960–1961 (AC conversion)[1][2]
  • 1983–1984
Number built32
SuccessorClass 321
Formation
  • 4 cars per unit:
  • DTSO+MBS+TC+DTS (as built)
  • DTBS+MS+TC+DTS (AC conversion)
  • DTBS+MS+TS+DTC (refurbishment)[3]
Diagram
  • EC204 (MS)
  • EE307 (DTC)
  • EH222 (TS)
  • EO202 (BDBS)[4]
Design codeAM7
Fleet numbers
  • 307101-307132 (sets)
  • 75001-75032 (DTSO)
  • 61001-61032 (MBS)
  • 70001-70032 (TC)
  • 75101-75132 (DTS)[3]
Capacity
  • 19F/344S (as built)
  • 80S (DTSO)
  • 96S (MBS)
  • 19F/60S (TC)
  • 108S (DTS)[3]
OperatorsBritish Rail
Depots
Specifications
Car body constructionSteel[4]
Train length265 ft 8+1⁄2 in (80.988 m)[3]
Car length
  • 63 ft 11+1⁄2 in (19.495 m) (Over body, DTSO, DTS)
  • 63 ft 6 in (19.355 m) (Over body, MBS, TC)[4]
Width9 ft 3 in (2.824 m)[4]
Height13 ft 0+1⁄2 in (3.975 m)[3]
DoorsSlam[3]
Articulated sections4
Wheelbase46 ft 6 in (14.173 m)[4]
Maximum speed75 mph (121 km/h)[4]
Weight
  • 154.5 t (152.1 long tons; 170.3 short tons) (total)
  • 43 t (42 long tons; 47 short tons) (DTBS)
  • 47.5 t (46.7 long tons; 52.4 short tons) (MS)
  • 31 t (31 long tons; 34 short tons) (TS)
  • 33 t (32 long tons; 36 short tons) (DTC)[3]
Traction motors4 × GEC WT344 of 170 hp (130 kW)[5]
Power output700 hp (520 kW)
HVACElectric[4]
Electric system(s)
  • 25 kV AC OHLE
  • (Originally 1500 V DC OHLE then 6.25 kV AC OHLE and 25 kV AC OHLE)[3][5]
Current collector(s)Pantograph
UIC classification2′2′+Bo′Bo′+2′2′+2′2′
Bogies
  • Gresley ED7 (as built, MS)
  • Gresley ET7 (as built, others)[4]
  • B4 (TSO, DTCO)
  • B5 (BDTBSO)[2]
Braking system(s)Air (Auto/EP)[3]
Safety system(s)AWS[4]
Coupling systemBuckeye[3]
Multiple workingWithin ER fleet[3]
Track gauge1,435 mm (4 ft 8+1⁄2 in) Standard gauge
Notes/references
42 × DTs converted 1994–96 to PCV for RES[3]
British Rail Class 307 train at London Liverpool Street station. The frosted windows show the location of the toilets. The second carriage includes some first-class seating.

The British Rail Class 307 electric multiple units were built by BR at Eastleigh Works from 1954 to 1956. They were initially classified as AM7 before the introduction of TOPS.

  1. ^ a b c d Longworth 2015, pp. 22–23, 124, 152, 172–175
  2. ^ a b c d e Fox 1994, p. 11
  3. ^ a b c d e f g h i j k l m n "Class 307". The Railway Centre. Archived from the original on 24 July 2008. Retrieved 22 February 2016.{{cite web}}: CS1 maint: unfit URL (link)
  4. ^ a b c d e f g h i "Vehicle Diagram Book No.210 for Electrical Multiple Units (including A.P.T.)" (PDF). Barrowmore MRG. BRB Residuary Ltd. EC204, EE307, EH222, EO202. Archived from the original (PDF) on 3 March 2016. Retrieved 22 February 2016.
  5. ^ a b c Fox 1987, p. 52