SECR J class

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SECR J class
Ashford Depot rare SE&CR locomotive geograph-2654083-by-Ben-Brooksbank.jpg
J class 1598 at Ashford 1946
Specifications
Power type Steam
Designer Harry Wainwright
Builder Ashford Works
Build date 1913
Total produced 5
Configuration 0-6-4T
UIC classification C2′ h2t
Gauge 4 ft 8 12 in (1,435 mm)
Driver diameter 5 ft 6 in (1.676 m)
Trailing wheel
diameter
3 ft 7 in (1.092 m)
Axle load 18 tons 14 cwt (41,900 lb or 19.0 t)
Weight on drivers 51 tons 18 cwt (116,300 lb or 52.8 t)
Locomotive weight 70 tons 14 cwt (158,400 lb or 71.8 t)
Fuel type Coal
Fuel capacity 3 tons 5 cwt (7,300 lb or 3.3 t)
Water capacity 2,000 imp gal (9,100 l; 2,400 US gal)
Boiler pressure 160 lbf/in2 (1.10 MPa)
Firegrate area 17.6 sq ft (1.64 m2)
Heating surface:
– Tubes
593 sq ft (55.1 m2)
– Flues 294 sq ft (27.3 m2)
– Firebox 112 sq ft (10.4 m2)
Superheater type Schmidt
Superheater area 234 sq ft (21.7 m2)
Cylinders Two, inside
Cylinder size 19 12 in × 26 in (495 mm × 660 mm)
Valve type 8-inch (203 mm) piston valves
Tractive effort 20,400 lbf (90.74 kN)
Career
Operator(s)
Class SECR / SR: J
Withdrawn 1949–1951
Disposition All scrapped

The SECR J class was a class of 0-6-4T steam tank locomotive built for heavy freight service on the South Eastern and Chatham Railway, by Harry Wainwright.

History[edit]

The South Eastern and Chatham Railway (SECR) had a need for versatile mixed traffic locomotives which could accelerate quickly so as not to impede the heavy passenger traffic on the densely used lines around London. Following the success of his C class 0-6-0 and his H class 0-4-4T Harry Wainwright sought to combine their good features but was limited by weight restrictions on many lines. The result was an 0-6-4 tank.[1] Five locomotives were constructed at Ashford during 1913, but Wainwright retired soon afterwards and no more were constructed. The class were moderately successful on a variety of secondary passenger and freight services. All had completed more than one million miles at the time of their withdrawal between 1949 and 1951.[2]

Numbering[edit]

The class were originally allocated unused numbers between 126 and 614. However, all but number 597 were renumbered by the Southern Railway in 1927/8 to create a unified sequence from A596 to A599. These later became 1596–1599, and then 31596–31599 under British Railways.

Locomotive Summary[edit]

J class locomotive fleet summary
SECR
No.
SR
No.
BR
No.
Date
Delivered
Date
Withdrawn
129 A596 31596 October 1913 September 1951
207 A595 31595 October 1913 April 1951
597 A597 31597 November 1913 October 1950
611 A598 31598 November 1913 December 1950
614 A598 31599 December 1913 November 1949

Sources[edit]

  1. ^ Bradley 1980, p. 45.
  2. ^ Bradley 1980, p. 48.

External links[edit]