LMS Turbomotive

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LMS Turbomotive
The LMS Turbomotive in original form
Type and origin Power type Steam Turbine-mechanical Designer William Stanier Builder LMS Crewe Works Build date 1935
Specifications Configuration: ​  • Whyte 4-6-2 Pacific  • UIC 2′C1′ turb.h Gauge 4 ft 8+1⁄2 in (1,435 mm) Leading dia. 3 ft 0 in (0.914 m) Driver dia. 6 ft 6 in (1.981 m) Trailing dia. 3 ft 9 in (1.143 m) Length 74 ft 4+1⁄4 in (22.66 m) (orig.) 74 ft 0+1⁄4 in (22.56 m) (rebuilt) Loco weight 110.55 long tons (123.82 short tons; 112.32 t) (orig.) 105.20 long tons (117.82 short tons; 106.89 t) (rebuilt) Fuel type Coal Fuel capacity 9 long tons (10 short tons; 9.1 t) Water cap. 4,000 imp gal (18,000 L; 4,800 US gal) Firebox: ​  • Grate area 45 sq ft (4.2 m2) Boiler LMS type 1 Boiler pressure 250 lbf/in2 (1.7 MPa) Heating surface: ​  • Firebox 217 sq ft (20.2 m2) Cylinders Rebuilt: 4 Cylinder size Rebuilt: 16 1/2 in × 28 in (419 mm × 711 mm) Valve gear Rebuilt: Walschaerts for outside cylinders with rocking shafts for inside cylinders
Performance figures Tractive effort Rebuilt: 41,536 lbf (184.76 kN)
Career Operators London, Midland & Scottish British Railways Power class LMS: 7P BR: 8P Numbers LMS: 6202 BR: 46202 Disposition Rebuilt as conventional reciprocating-steam locomotive in 1952, wrecked same year, scrapped.

The LMS Turbomotive was a modified LMS Princess Royal Class steam turbine locomotive designed by William Stanier and built by the London, Midland and Scottish Railway in 1935. It was inspired by the Swedish Ljungström locomotives first introduced in 1922.^[1] It used turbines instead of cylinders. It was later rebuilt as a conventional locomotive No. 46202 Princess Anne .