Midland Railway 990 Class

Midland Railway 990 Class: Midland Railway 990 class

The official photograph of 990 in photographic grey livery

Power type Steam

Designer Richard Deeley

Build date 1908–1909

Total produced 10

Configuration 4-4-0

Gauge 4 ft 8¹⁄₂ in (1,435 mm)

Driver diameter 6 ft 6¹⁄₂ in (1.994 m)

Locomotive weight 58 tons 5 cwt (130,500 lb or 59.2 t)

Fuel type Coal

Boiler pressure 200 lbf/in² (1.38 MPa)

Cylinders Two, inside

Cylinder size 20.5 × 26 in (521 × 660 mm)

Tractive effort 23,662 lbf (105.3 kN)

Career Midland Railway,
London, Midland and Scottish Railway

Class 990

Power class 4P

Number 990–999

Retired 1925–1928

Disposition All scrapped

The Midland Railway 990 class was a class of 4-4-0 steam locomotive. Ten were built in 1908–1909 with simple expansion to compare with the 1000 class compounds, with which they shared many features. Initially saturated, they were later superheated. They were withdrawn between 1925 and 1928. None has survived to preservation, though the first of the compounds has.

References

Casserley, H.C; S. W. Johnson (1966, 1974). Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan Limited. ISBN 0-7110-0554-0.

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Midland Railway 990 class

The official photograph of 990 in photographic grey livery
Power type	Steam
Designer	Richard Deeley
Build date	1908–1909
Total produced	10
Configuration	4-4-0
Gauge	4 ft 8¹⁄₂ in (1,435 mm)
Driver diameter	6 ft 6¹⁄₂ in (1.994 m)
Locomotive weight	58 tons 5 cwt (130,500 lb or 59.2 t)
Fuel type	Coal
Boiler pressure	200 lbf/in² (1.38 MPa)
Cylinders	Two, inside
Cylinder size	20.5 × 26 in (521 × 660 mm)
Tractive effort	23,662 lbf (105.3 kN)
Career	Midland Railway, London, Midland and Scottish Railway
Class	990
Power class	4P
Number	990–999
Retired	1925–1928
Disposition	All scrapped