top of page
IMG_1489.JPG

About Class 37's - Data Sheet 

Sub Class:
37/0
37/3
37/4
37/5
37/6
37/7
37/9
97/3
TOPS Numbers:

37001 - 37308

37330 - 37383
37401 - 37431

37501 - 37521

37667 - 37699

37601 - 37612

37701 - 37719

37796 - 37803

37883 - 37899

37901 - 37906

97301 - 97304

BR Number:

D6700 - D6999

D6600 - D6608

From main fleet

From main fleet

From main fleet

From main fleet

From main fleet

From main fleet

From main fleet

Built By:

English Electric, Vulcan Foundry &

Rober Stephenson & Hawthorn

-

-

-

-

-

-

-

Introduced:

1960 - 1965

1988 - 1995

1985 - 1986

1986 - 1988

1986 - 1988

1986 - 1987

1986 - 1987

2008

Wheel Arrangment:

Co-Co

Co-Co

Co-Co

Co-Co

Co-Co

Co-Co

Co-Co

Co-Co

Weight:

102 - 108 tonnes

102 - 108 tonnes

107 tonnes

107 tonnes

107 tonnes

120 tonnes

120 tonnes

105 tonnes

Height (see note 1):

12ft 9 1/16 in or

13ft 3/4 inch

12ft 9 1/16 in or

13ft 3/4 inch

13ft 3/4in

12ft 9 1/16 in or

13ft 3/4 inch

12ft 9 1/16 in or

13ft 3/4 inch

12ft 9 1/16 in or

13ft 3/4 inch

13ft 3/4 in

12ft 9 1/16 in or

13ft 3/4 inch

Length:

61ft  6in

61ft  6in

61ft  6in

61ft  6in

61ft  6in

61ft  6in

61ft  6in

61ft  6in

Width:

8ft  11 5/8inch

8ft  11 5/8inch

8ft  11 5/8inch

8ft  11 5/8inch

8ft  11 5/8inch

8ft  11 5/8inch

8ft  11 5/8inch

8ft  11 5/8inch

Wheelbase:

50ft  8in

50ft  8in

50ft  8in

50ft  8in

50ft  8in

50ft  8in

50ft  8in

50ft  8in

Bogie Wheelbase:

13ft  6in

13ft  6in

13ft  6in

13ft  6in

13ft  6in

13ft  6in

13ft  6in

13ft  6in

Bogie Pivot Centre:

37ft  2in

37ft  2in

37ft  2in

37ft  2in

37ft  2in

37ft  2in

37ft  2in

37ft  2in

Wheel Diameter:

3ft  7in

3ft  7in

3ft  7in

3ft  7in

3ft  7in

3ft  7in

3ft  7in

3ft  7in

Brake Type:

Built Vacuum only, later

Dual braked

Dual

Dual

Dual

Dual

Dual

Dual

Dual

Sanding Equipment:

Pneumatic

Pneumatic

Pneumatic

Pneumatic

Pneumatic

Pneumatic

Pneumatic

Pneumatic

Train Heating Type:

Steam (removed)

N/A

Electric - Index 30

N/A

N/A

N/A

N/A

N/A

Train Heat Alternator:

N/A

N/A

Brush BAH-701

N/A

N/A

N/A

N/A

N/A

Route Availability:

5

5

5

5

5

7

7

5

Multiple Working Code:

Blue Star

Blue Star

Blue Star

Blue Star

Blue Star & DRS

Blue Star

Blue Star

Blue Star

Brake Force:

50 tonnes

50 tonnes

50 tonnes

50 tonnes

50 tonnes

50 tonnes

50 tonnes

50 tonnes

Engine Type:

English Electric 12CSVT

English Electric 12CSVT

English Electric 12CSVT

English Electric 12CSVT

English Electric 12CSVT

English Electric 12CSVT

Mirrlees MB 275T (37901 - 904)

Ruston RX 270T (37905 & 906)

English Electric 12CSVT

Engine Horsepower:

1,750hp

1,750hp

1,750hp

1,750hp

1,750hp

1,750hp

1,800hp

1,750hp

Power at Rail:

1,250hp

1,250hp

1,250hp

1,250hp

1,250hp

1,250hp

1,300hp

1,250hp

Tractive Effort:

55,500lb

55,500lb

55,500lb

55,500lb

55,500lb

55,500lb

62,000lb (37901 - 904)

62,680lb (97905 & 906)

55,500lb

Cylinder Bore:

10 inches

10 inches

10 inches

10 inches

10 inches

10 inches

10 1/4 inches

10 inches

Cylinder Stroke:

12 inches

12 inches

12 inches

12 inches

12 inches

12 inches

12 1/4 inches

12 inches

Main Generator Type:

EE 822/10G,

EE822-13G or

EE822-16J

EE 822/10G,

EE822-13G or

EE822-16J

N/A

N/A

N/A

N/A

N/A

EE 822/10G,

EE822-13G or

EE822-16J

Main Alternator Type:

N/A

N/A

Brush BA1005A

Brush BA1005A

Brush BA1005A

Brush BA100A

GEC G564AZ (37796 - 37803)

Brush BA1005A (37901 - 904)

GEC G564AZ (37905 & 906)

N/A

Auxiliary Generator Type:

EE911/5C

EE911/5C

N/A

N/A

N/A

N/A

N/A

EE911/5C

Auxiliary Alternator Type:

N/A

N/A

Brush BAA606A

Brush BAA606A

Brush BAA606A

Brush BAA606A

G658A, 659AZ or 658BY (37796 - 37803)

Brush BA606A (37901 - 904)

GEC 564 (37905 & 906)

N/A

Number of Traction Motors:

6

6

6

6

6

6

6

6

Gear Ratio:

53:18

59:16

59:16

59:16

59:16

59:16

59:16

53:18

Fuel Tank Capacity (see note 2):

890 gal or 1690 gal

1690 gal

1690 gal

1690 gal

1690 gal

1690 gal

1690 gal

1690 gal

Engine Coolant Capacity:

160 gallons

160 gallons

160 gallons

160 gallons

160 gallons

160 gallons

160 gallons

160 gallons

Boiler Water Capacity (see note 2):

800 gallons

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Boiler Fuel Capacity:

From Main Supply

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Engine Lubrication Oil Capacity:

120 gallons

120 gallons

120 gallons

120 gallons

120 gallons

120 gallons

120 gallons

120 gallons

Notes:

​

1. Locomotives fitted with body mounted horns are 12ft 9 1/16 inches in height, those with roof mounted horns are 13ft 3/4 inches in height.

​

2. Following the removal of steam heating systems, the steam boiler water tank was converted into an additional fuel tank, thus providing an additionl 800 gallons capacity.

bottom of page