LMS Fowler Class 3F

LMS Fowler Class 3F

16564, newly built in 1928

Type and origin Power type Steam Designer Henry Fowler Builder W. G. Bagnall (32) Wm. Beardmore & Co. (90) Hunslet Engine Co. (90) LMS Horwich Works (15) North British Locomotive Co. (75) Vulcan Foundry (120) Build date 1924–1931 Total produced 422

Specifications Configuration: ​  • Whyte 0-6-0T  • UIC C n2t Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Driver dia. 4 ft 7 in (1.397 m) Wheelbase 16 ft 6 in (5.03 m) Length 31 ft 4 3⁄4 in (9.57 m) Loco weight 49.50 long tons (50.29 t; 55.44 short tons) Fuel type Coal Fuel capacity 2.25 long tons (2.29 t; 2.52 short tons) Water cap 1,200 imp gal (5,500 L; 1,400 US gal) Firebox:  • Firegrate area 16 sq ft (1.5 m2) Boiler LMS type G5½ Boiler pressure 160 lbf/in2 (1.10 MPa) Heating surface:  • Tubes 967 sq ft (89.8 m2)  • Firebox 97 sq ft (9.0 m2) Superheater None Cylinders Two, inside Cylinder size 18 in × 26 in (457 mm × 660 mm) Valve gear Stephenson, slide valves

Performance figures Tractive effort 20,835 lbf (92.68 kN)

Career Operators London, Midland and Scottish Railway Somerset and Dorset Joint Railway War Department Northern Counties Committee British Railways Power class 3F Nicknames Jinty Axle load class BR: Route Availability 5 Withdrawn 1959–1967 Disposition 9 preserved, 1 used for spares; remainder scrapped

The London Midland and Scottish Railway (LMS) Fowler 3F 0-6-0T is a class of steam locomotive, often known as Jinty. They represent the ultimate development of the Midland Railway's six-coupled tank engines.

Design of this class was based on rebuilds by Henry Fowler of the Midland Railway 2441 Class introduced in 1899 by Samuel Waite Johnson. These rebuilds featured a Belpaire firebox and improved cab. 422 Jinties were built between 1924 and 1931; this class was just one of the Midland designs used on an ongoing basis by the LMS. The locomotives were built by the ex-L&YR Horwich Works and the private firms Bagnall's, Beardmores, Hunslet, North British and the Vulcan Foundry.

When new, they were numbered 7100–7149, 16400–16764. Numbers 7150–7156 were added when the LMS absorbed the Somerset and Dorset Joint Railway locomotives in 1930. In the 1934 LMS renumbering scheme, the locomotives were assigned the series 7260–7681. On the outbreak of the Second World War in 1939 they were initially chosen as the standard shunting locomotive for the War Department, but later the more modern Hunslet "Austerity" 0-6-0ST was chosen in preference. Nevertheless, eight were dispatched to France before its fall in 1940, and only five returned in 1948. Two, 7456 and 7553, were converted to the 5 ft 3 in (1,600 mm) Irish broad gauge in 1944 and 1945 for use on Northern Counties Committee lines in Northern Ireland, becoming the NCC Class Y, and numbered 18 and 19. A total of 412 thus entered British Railways stock in 1948, rising to 417 by the end of the year.