LMS Garratt

LMS Beyer-Garratt
Type and origin
Power typeSteam
BuilderBeyer, Peacock & Co.
Serial number6325–6327, 6648–6677
Build date1927 (3), 1930 (30)
Total produced33
Specifications
Configuration:
 • Whyte2-6-0+0-6-2T
 • UIC(1′C)(C1′) h4t
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Leading dia.3 ft 3+12 in (1.003 m)
Driver dia.5 ft 3 in (1.600 m)
Wheelbase79 ft (24.08 m)
Length87 ft 10+12 in (26.78 m)
Loco weight
  • 1927 built: 148.75 long tons (151.1 t; 166.6 short tons)
  • 1930 built: 152.5 long tons (154.9 t; 170.8 short tons)
Fuel typeCoal
Fuel capacity
  • 1927 built: 7 long tons (7.1 t; 7.8 short tons)
  • 1930 built: 9 long tons (9.1 t; 10 short tons)
Water cap.4,500 imp gal (20,000 L; 5,400 US gal)
Firebox:
 • Grate area44.5 sq ft (4.13 m2)
BoilerLMS type Garratt
Boiler pressure190 lbf/in2 (1.31 MPa)
Heating surface:
 • Firebox183 sq ft (17.0 m2)
 • Tubes and flues1,954 sq ft (181.5 m2)
Superheater:
 • Heating area500 sq ft (46 m2) or 466 sq ft (43.3 m2)
CylindersFour, outside
Cylinder size18+12 in × 26 in (470 mm × 660 mm)
Valve gearWalschaerts
Valve typePiston valves
Performance figures
Tractive effort45,620 lbf (202.9 kN)
Career
Operators
ClassGarratt
Power classNot classified
Withdrawn1955–1958
DispositionAll scrapped

The London, Midland and Scottish Railway (LMS) Garratt was a class of Garratt 2-6-0+0-6-2 steam locomotive designed for heavy freight. A total of 33 were built from 1927, making them the most numerous class of Garratt in Britain.