British Railway History Item
LNER Class Raven North Eastern Railway A7 4-6-2 Tank
Built 1910-11. Designed by Vincent Raven.
Total Number Built 20 - Total to BR 20.
Introduced 1910. Raven North Eastern Railway (NER) Class Y design, saturated.
(a) All except 69775/8/87 Rebuilt with superheater and reduced boiler pressure between 1917 and 1932.
Number Series 69770-69789.
Built at the North Eastern Railway Darlington Works.
No Lot Nos. yet available.
These locomotives were the first Pacific tank engines to be built in Britain.
LNER No.1190 was rebuilt in 1943 as Class A7/1 with a Diagram 63B boiler. LNER No.1170 was rebuilt in 1945 and between 1948 and 1952, thirteen further rebuilds took place.
At the end of their lives, the locomotives were concentrated in the Hull area, at both Dairycoates and Springhead sheds.
The first loco withdrawn was ??? on ??? 1951 from ??? shed.
The last loco withdrawn was ??? on ??? 1957 from ??? shed.
None are preserved.
Motive Power Details
Weight: Loco 87 tons 10 cwt
Wheels: Driving 4' 7?" - Bogie 3'1?" - Pony 3'9?"
Boiler Size: 5?'
180lb/sq in NS
160lb/sq in Su (a)
Cylinders: Three 16?" x 26"
Valve Gear: Stephenson (piston valves)
26,140 lb (a)
Class Total: 19
Allocation and Withdrawal Details
Last Updated : Sunday 4th May 2003 18:31