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The NER Class P (LNER Class J24) was a class of 0-6-0 steam locomotives of the North Eastern Railway.[1][2] They were designed by Wilson Worsdell for mineral traffic.

NER Class P LNER Class J24
Type and origin Power type Steam Designer Wilson Worsdell Builder NER Gateshead Works (50) NER Darlington Works (20) Build date 1894-1898 Total produced 70
Specifications Configuration: ​  • Whyte 0-6-0 Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 4 ft 7.25 in (1.403 m) Loco weight 38.5 long tons (39.1 t) (ns) 39.55 long tons (40.18 t) (su) Tender weight 36.95 long tons (37.54 t) Fuel type coal Boiler pressure 160 psi (1,100 kPa) Cylinders two inside Cylinder size 18 in × 24 in (460 mm × 610 mm) (ns) 18.5 in × 24 in (470 mm × 610 mm) (su)
Performance figures Tractive effort 19,140 lbf (85,100 N) (18" cylinders) 20,220 lbf (89,900 N) (18½" cylinders)
Career Withdrawn 1933-1951 Disposition All Scrapped none preserved

Modifications

As built, the locomotives had slide valves but 20 were fitted with piston valves and superheaters between 1914 and 1920. The cylinder bore was increased by half an inch at the same time.

In the infobox (right) 'ns' denotes non-superheated and 'su' denotes superheated. Some locomotives later had their superheaters removed but the piston valves were retained.

British Railways

Thirty-four locomotives survived into British Railways ownership in 1948 and their BR numbers were 65600-65644 (with gaps).

Withdrawal

Withdrawals started under LNER ownership in 1933. British Railways quickly withdrew the remaining locomotives and all had gone by the end of 1951. None were preserved.

References

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