CLASS 42 'Warship'

1957 BR number range:

D800-D832, D866-D870

Former class codes:

D800-D802 - D22/1, later 22/1
D803 D832/D866 D870 - D20/1, later 20/1

Built by:

BR Swindon

Introduced:

1958-1961

Wheel arrangement:

B-B

Weight (operational):

79 tonnes

Height:

12ft 9 1/2n

Width:

8ft 8 1/2in

Length:

60ft

Min curve negotiable:

4 1/2 chains

Maximum speed:

90mph

Wheelbase:

48ft 3in

Bogie wheelbase:

10ft 6in

Bogie pivot centres:

37ft 9in

Wheel diameter:

3ft 3 1/2in

Brake type:

Vacuum

Sanding equipment:

Pneumatic

Route availability:

6

Heating type:

D800-D812, D866-D870 - Steam - Spanner Mk 1
D813-D817, D819-D865 - Steam - Stones OK 4616
D818 - Steam - Spanner Mk 3

Multiple coupling restriction:

D800-D802 - Not fitted
D803-D870 - White Diamond

Brake force:

35 tonnes

Engine type:

D800-D829, D831-D832, D866-D870 -
2x Maybach M D650
D830 - 2x Paxman 12YJXL

Total Horsepower:

D800-D803 - 2,000hp
D804-D829, D831-D870 - 2,200hp
D830 - 2,400hp

Power at rail:

Tractive effort:

52,400 1b

Cylinder bore:

7 3/4in

Cylinder stroke:

8 1/4in

Transmission type:

Mekydro K104

Fuel tank capacity:

800gal

Cooling water capacity:

270gal

Lub oil capacity:

90gal (D830 = 70 - Gal)

Boiler water capacity:

94Ogal

Boiler fuel supply:

From main tank