British Rail Class 303 information

British Rail Class 303
British Rail Class 303
	Class 303 at Milngavie in 1986
In service	5 November 1960–30 December 2002
Manufacturer	Pressed Steel Company
Order no.	30579 (DTSO, 75566-75600); 30629 (DTSO, 75747-75801); 30580 (MBSO, 61481-61515); 30630 (MBSO, 61812-61867); 30581 (BDTSO, 75601-75635); 30631 (BDTSO, 75802-75857);
Built at	Linwood, Renfrewshire
Family name	BR First Generation Mark 1
Replaced	Various steam engines/early carriages
Constructed	1959–1961
Entered service	1960–1961
Refurbished	1984 - c.1990
Scrapped	1974–2003
Number built	91
Number preserved	1
Number scrapped	90
Successor	Class 320; Class 334;
Formation	3 cars per unit:; DTS+MBS+BDTS (as built); DTSO+MBSO+BDTSO (rebuilt);
Diagram	EE206 (DTSO, 303/0); ED201 (MBSO, 303/0); EF202 (BDTSO, 303/0); EE241 (DTSO, 303/1); ED220 (MBSO, 303/1); EF217 (BDTSO, 303/1);
Design code	AM3
Fleet numbers	303001–303091 (full sets); 75566-75600, 75746-75801 (DTSO); 61481-61515, 61812-61867 (MBSO); 75601-75635, 75802-75857 (BDTSO);
Capacity	236 seats (as built); 160 seats (rebuilt);
Operators	British Rail; ScotRail (National Express);
Depots	Glasgow Shields Road; Hyndland; Yoker; Longsight Electric TMD; Bridgeton;
Lines served	North Clyde Line; Cathcart Circle Lines; Weaver Junction and Liverpool Line; Crewe to Manchester Line; Glossop Line;
Specifications
Car body construction	Steel
Train length	199 ft 6 in (60.81 m)
Car length	63 ft 11.5 in (19.49 m) (DTS, BDTS); 63 ft 2.25 in (19.26 m) (MBS);
Width	9 ft 3 in (2.82 m)
Height	12 ft 8 in (3.86 m)
Floor height	3 ft 7.5 in (1.1 m)
Doors	Twin leaf sliding, pneumatically operated
Articulated sections	3
Wheelbase	46 ft 6 in (14.17 m) (bogie centres, per car)
Maximum speed	75 mph (121 km/h)
Weight	124 long tons (126 t; 139 short tons) (set); 34.4 t (33.9 long tons; 37.9 short tons) (DTSO); 56.4 t (55.5 long tons; 62.2 short tons) (MBSO); 38.4 t (37.8 long tons; 42.3 short tons) (BDTSO);
Traction motors	4 × MV 155kW
Power output	618 kW (829 hp)
HVAC	Electric
Electric system(s)	25 kV AC & 6.25 kV AC overhead
Current collector(s)	Pantograph
UIC classification	2′2′+Bo′Bo′+2′2′
Bogies	Gresley ET3 (DTS, BDTS); Gresley ED3 (MBS);
Braking system(s)	Electropneumatic
Safety system(s)	AWS
Coupling system	Automatic drophead buckeye (outer); Automatic solid shank Alliance No.2 (inner);
Multiple working	Within class, and Class 311
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The British Rail Class 303 electric multiple units, also known as "Blue Train" units, were introduced in 1960 for the electrification of the North Clyde and the Cathcart Circle lines in Strathclyde. They were initially classified as AM3 units before the introduction of the TOPS classification system, and were the dominant EMU on the Glasgow suburban railway network for over 25 years before being progressively phased out by newer rolling stock. The final units were withdrawn from service in 2002. The fleet's lifespan was 42 years.

The units were later used on the Inverclyde and Argyle lines of the Glasgow suburban railway network as various electrification schemes came to fruition.

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Fox 1994, pp. 7–8
^ ^a ^b ^c ^d "Class 303 History". Scottish Trains Website. Archived from the original on 25 October 2015. Retrieved 2 February 2016.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "Class 303". The Railway Centre. Archived from the original on 25 July 2008. Retrieved 2 February 2016.{{cite web}}: CS1 maint: unfit URL (link)
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "Vehicle Diagram Book No.210 for Electrical Multiple Units (including A.P.T.)" (PDF). Barrowmore MRG. BRB Residuary Ltd. ED201, ED220, EE206, EE241, EF202, EF217. Archived from the original (PDF) on 3 March 2016. Retrieved 2 February 2016.
^ Servicing depot opened in 1987
^ Fox 1987, p. 50.
^ Following closure as a passenger station in 1979, Bridgeton Central became a major servicing depot for Cl.303s until 1987

[P5-1-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Fox 1994, pp. 7–8

[ZF1-2] "Class 303 History". Scottish Trains Website. Archived from the original on 25 October 2015. Retrieved 2 February 2016.

[TRC1-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "Class 303". The Railway Centre. Archived from the original on 25 July 2008. Retrieved 2 February 2016.{{cite web}}: CS1 maint: unfit URL (link)

[BMRG1-4] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "Vehicle Diagram Book No.210 for Electrical Multiple Units (including A.P.T.)" (PDF). Barrowmore MRG. BRB Residuary Ltd. ED201, ED220, EE206, EE241, EF202, EF217. Archived from the original (PDF) on 3 March 2016. Retrieved 2 February 2016.

[5] Servicing depot opened in 1987

[FOOTNOTEFox198750-6] Fox 1987, p. 50.

[7] Following closure as a passenger station in 1979, Bridgeton Central became a major servicing depot for Cl.303s until 1987

British Rail Class 303 information

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