CLASS 28

1957 number range:

D5700-D5719

Former class codes:

D12/1 later 12/5

Built by:

Metropolitan Vickers

Introduced:

1958-59

Wheel arrangement:

Co-Bo

Weight (operational):

97 tonnes

Height:

12ft 8 3/8in

Width:

9ft 2 1/2in

Length:

56ft 7 1/2in

Min curve negotiable:

3 1/2 chains

Maximum speed:

75mph

Wheelbase:

42ft 7in

Bogie wheelbase:

Bo - 8ft 6in
Co - 12ft 2 1/2in

Bogie pivot centres:

32ft 4in

Wheel diameter:

3ft 3 1/2in

Brake type:

Vacuum

Sanding equipment:

Pneumatic

Route Availability:

8

Heating type:

Steam - Spanner Mk 1

Multiple coupling restriction:

Red Circle

Brake force:

35 tonnes

Engine type:

Crossley HSTV 8

Engine horsepower:

1,200hp

Power at rail:

942 hp

Tractive effort:

50,0001b

Cylinder bore:

10 1/2in

Cylinder stroke:

13 1/2in

Main generator type:

Met Vic TG4204

Aux generator type:

Met Vic TAG

Number of traction motors:

5

Traction motor type:

Met Vic 137 BZ

Gear ratio:

15:67

Fuel tank capacity:

51Ogal

Cooling water capacity:

?? gal

Lub oil capacity :

?? gal

Boiler water capacity:

60Ogal