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LNER Class J39
No. 4965 at Grantham Shed 1947
Type and origin
Power type
Steam
Designer
Nigel Gresley
Build date
1926-1941
Total produced
289
Specifications
Configuration:
• Whyte
0-6-0
• UIC
Ch2
Gauge
4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.
5 ft 2 in (1.575 m)
Length
J39/1: 54 ft 0 in (16.46 m)
J39/2: 55 ft 8+3⁄8 in (16.977 m)
J39/3: 54 ft 10+1⁄8 in (16.716 m)
[1]
Loco weight
57.85 long tons (58.8 t; 64.8 short tons)
Tender weight
J39/1 44.2 long tons (44.9 t; 49.5 short tons), J39/2 52.65 long tons (53.5 t; 59.0 short tons) J39/3, various
Fuel type
Coal
Water cap.
Various
Firebox:
• Grate area
26 sq ft (2.4 m2)[2]
Boiler pressure
180 psi (1.24 MPa)
Heating surface
1,397.78 sq ft (129.858 m2)[2]
Superheater:
• Heating area
271.80 sq ft (25.251 m2)[2]
Cylinders
Two, inside
Cylinder size
20 in × 26 in (508 mm × 660 mm)
Valve gear
Stephenson
Valve type
piston valves
Performance figures
Tractive effort
25,665 lbf (114.16 kN)
Career
Operators
London and North Eastern Railway British Railways
Class
LNER: J39 BR: 4P5F
Numbers
4700-4988 : LNER,BR : 64700-64988
Withdrawn
1959–1962
Disposition
All scrapped
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