British Rail Class 305

British Rail Class 305
Class 305 unit at York
In service1959–2002
ManufacturerBritish Rail
Order no.
  • 30566 (BDTSOL, 305/2, as built)
  • 30567 (MBSO, 305/2)
  • 30568 (TSOL, 305/2)
  • 30569 (DTSO, 305/2)
  • 30570 (BDTSO, 305/1)
  • 30571 (MBSO, 305/1)
  • 30572 (DTSO, 305/1)[1][2]
Built at
Family nameBR First Generation EMU
ReplacedSteam locomotives and carriages
Constructed1959–1960
Refurbished1983–1984 (305/2 facelift)[4]
Number built71
Number scrapped71
SuccessorClass 322
Class 323
FormationClass 305/1
BDTSO+MBS+DTSO
Class 305/2 As Built
BDTSOL+MBSO+TCsoL+DTS
Class 305/2 Facelifted
BDTCOL+MBS+TSOL+DTSO
Class 305/3
BDTSO+MBS+TCsoL+DTSO [5][6]
DiagramAs Built
Class 305/1
  • 413 MBSO
  • 436 BDTSO, DTSO

Class 305/2
  • 405 MBSO
  • 437 DTS
  • 438 BDTSOL
  • 455 TCsoL

TOPS Codes
Class 305/1
  • E204.0A MBSO
  • EE209.1B DTSO
  • EF205.0A

Class 305/2
As Built
  • ED205.1B MBS
  • EE210.0A DTS
  • EF206.0A BDTSOL
  • EH302.1B TCsoL

Refurbished
  • ED216.0A MBSO
  • EE220.0A DTS
  • EF304.0A BDTSOL
  • EH223.0A TSOL
[7][8][2] [9]
Design codeAM5
Fleet numbersClass 305/1:
  • 305401-305452
  • 75462-75513 BDTSO
  • 61429-61480 MBS
  • 75514-75565 DTSO

Class 305/2:
  • 305501-305519
  • 75424-75442 BDTSOL later BDTCOL
  • 61410-61428 MBS later MBSO
  • 70356-70374 TCsoL later TSOL
  • 75443-75461 DTS later DTSO [2]
Capacity272 seats (305/1),
344 2nd + 19 1st (305/2) [2]
Operators
Depots
Specifications
Car body constructionWelded steel and spayed asbestos
Train length199 ft 6 in (60.81 m) (305/1)
265 ft 8+1⁄2 in (80.99 m) (305/2)
Car length63 ft 6+1⁄2 in (19.37 m) [9]
Width9 ft (2.74 m) [9]
Height12 ft 7 in (3.835 m) [9]
DoorsSlam Door
Articulated sections3 or 4
Wheelbase
  • 46 ft 6 in (14.173 m) (bogie centres)
  • 8 ft 6 in (2.59 m) (bogies) [9]
Maximum speed75 mph (121 km/h)[11]
Weight
Traction motors4 × GEC WT380 of 153 kW (205 hp)[1]
Auxiliaries240 V from the tertiary winding of the main transformer for heating and for a Westinghouse charger feeding 110 V dc for lighting and battery charging[3]
Power supplyMercury-arc rectifiers[3] (later replaced with silicon diode)
HVACElectric
Electric system(s)25 kV 50 Hz AC Overhead
(and 6.25 kV until 1983)
Current collector(s)Pantograph
Bogies
  • Gresley ED5 (MBS)
  • Gresley ET8 (DTS)
  • Gresley ET5 (BDTS, BTDC, TS[9]
  • compound bolster[3]
Braking system(s)Westinghouse EP air[3]
Safety system(s)AWS[9]
Coupling systemDrophead[9]
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge

The British Rail Class 305 was an alternating current (AC) electric multiple unit (EMU). Under the pre-1973 British Rail numbering system, the class was known as AM5; when TOPS was introduced, it became Class 305.

  1. ^ a b c Fox 1994, pp. 10–11
  2. ^ a b c d Longworth 2015, pp. 129–130, 134–135, 158, 178–180
  3. ^ a b c d e f "Multiple-Unit Stock for New Great Eastern Electric Services". The Railway Magazine. No. January 1961. pp. 11–13.
  4. ^ Bowles, L.J. (1985). British Rail Coaching Stock 1985. Shepperton,Surry,UK. p. 121. ISBN 9780711014558.{{cite book}}: CS1 maint: location missing publisher (link)
  5. ^ Longworth 2015, pp. 70–71
  6. ^ British Rail Motive Power Combined Volume 1989. Shepperton, Surry, UK: Ian Allan. 1989. pp. 81–82. ISBN 0711018499.
  7. ^ British Rail Coaching Stock 1983/84. Shepperton, Surry, UK: Ian Allan. 1989. pp. 103–104. ISBN 0711013527.
  8. ^ British Rail Motive Power Combined Volume 1989. Shepperton, Surry, UK: Ian Allan. 1989. pp. 81–82. ISBN 0711018499.
  9. ^ a b c d e f g h Diagram Book 1986, ED204, ED205, ED216, EE209, EE210, EE220, EF205, EF206, EF304, EH223, EH302.
  10. ^ Fox 1987, pp. 51–52
  11. ^ Marsden, Colin (1982). Motive Power Recognition 2 EMUs. Shepperton,Surrey,UK: Ian Allan. p. 16. ISBN 0711011656.