GWR 3800 Class

GWR 3800 'County' Class
3818 County of Radnor as built in 1906
Type and origin Power type Steam Designer George Jackson Churchward Builder Swindon Works, Great Western Railway Order number Lots 149, 165, 184 Serial number 2056–2065, 2209–2228, 2415–2425 Build date 1904, 1906, 1911–12 Total produced 40
Specifications Configuration: ​  • Whyte 4-4-0 Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Leading dia. 3 ft 2 in (965 mm) Driver dia. 6 ft 8+1⁄2 in (2,045 mm) Wheelbase 24 ft 0 in (7,315 mm) Axle load 18.15 long tons (18.44 t; 20.33 short tons) Adhesive weight 34.3 long tons (34.85 t; 38.42 short tons) Loco weight 55.3 long tons (56.19 t; 61.94 short tons) Tender weight 36.75 long tons (37.34 t; 41.16 short tons) Total weight 92.05 long tons (93.53 t; 103.10 short tons) Fuel type Coal Water cap. 3,000 imp gal (13,638 L; 3,603 US gal) Firebox: ​  • Grate area 20.56 sq ft (1.91 m2) Boiler GWR Standard No. 4 Boiler pressure 200 psi (1,379 kPa) Heating surface: ​  • Firebox 128.30 sq ft (11.92 m2)  • Tubes 1,689.82 sq ft (156.99 m2)  • Total surface 1,818.12 sq ft (168.91 m2) Cylinders 2, outside Cylinder size 18 in × 30 in (457 mm × 762 mm) diameter x stroke Valve gear Stephenson
Performance figures Tractive effort 20,530 lbf (91 kN)
Career Operators Great Western Railway Class 3800 Power class GWR: C Number in class 40 Numbers 3473–82, 3801–30 until Dec 1912 3800–39 from December 1912 Official name County Nicknames Churchward's Rough Riders Axle load class GWR: Red Withdrawn 1930–33 Disposition All original locomotives scrapped; one new-build under construction
Dimensions as built[1]

The Great Western Railway 3800 Class, also known as the County Class, were a class of 4-4-0 steam locomotives for express passenger train work introduced in 1904 in a batch of ten. Two more batches followed in 1906 and 1912 with minor differences. They were designed by George Jackson Churchward, who used standard components to produce a four-coupled version of his Saint Class 4-6-0s.