GWR 3150 Class

Specifications
Specifications
Configuration:;
• Whyte	2-6-2T
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 2 in (0.965 m)
Driver dia.	5 ft 8 in (1.727 m)
Trailing dia.	3 ft 8 in (1.118 m)
Length	41 ft 0 in (12.50 m) over buffers
Loco weight	64 long tons 13 cwt (144,800 lb or 65.7 t); (65.7 t; 72.4 short tons) empty; 81 long tons 12 cwt (182,800 lb or 82.9 t); (82.9 t; 91.4 short tons) full
Fuel type	Coal
Water cap.	2,000 imp gal (9,100 L; 2,400 US gal)
Firebox:
• Grate area	20.56 sq ft (1.910 m2)
Boiler	GWR Standard No. 4
Boiler pressure	200 lbf/in2 (1.38 MPa)
Heating surface:
• Firebox	128.72 sq ft (11.958 m2)
• Tubes	1,349.64 sq ft (125.386 m2)
Cylinders	Two, outside
Cylinder size	18+1⁄2 in × 30 in (470 mm × 762 mm)
Valve gear	Stephenson
Valve type	Piston valves
Train brakes	Vacuum

Type and origin
Type and origin
Power type	Steam
Designer	George Jackson Churchward
Builder	GWR Swindon Works
Order number	Lots 159, 169, 172
Serial number	2157, 2239–2258, 2280–2299
Build date	1906–1908
Total produced	41

GWR 3150 Class ^[1]
GWR 3150 Class
	3171 at Gloucester (Horton Road) Depot 1948
Power type
Type and origin
Power type	Steam
Designer	George Jackson Churchward
Builder	GWR Swindon Works
Order number	Lots 159, 169, 172
Serial number	2157, 2239–2258, 2280–2299
Build date	1906–1908
Total produced	41
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-2T
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 2 in (0.965 m)
Driver dia.	5 ft 8 in (1.727 m)
Trailing dia.	3 ft 8 in (1.118 m)
Length	41 ft 0 in (12.50 m) over buffers
Loco weight	64 long tons 13 cwt (144,800 lb or 65.7 t); (65.7 t; 72.4 short tons) empty; 81 long tons 12 cwt (182,800 lb or 82.9 t); (82.9 t; 91.4 short tons) full
Fuel type	Coal
Water cap.	2,000 imp gal (9,100 L; 2,400 US gal)
Firebox:
• Grate area	20.56 sq ft (1.910 m2)
Boiler	GWR Standard No. 4
Boiler pressure	200 lbf/in2 (1.38 MPa)
Heating surface:
• Firebox	128.72 sq ft (11.958 m2)
• Tubes	1,349.64 sq ft (125.386 m2)
Cylinders	Two, outside
Cylinder size	18+1⁄2 in × 30 in (470 mm × 762 mm)
Valve gear	Stephenson
Valve type	Piston valves
Train brakes	Vacuum
Tractive effort
Performance figures
Tractive effort	25,670 lbf (114.2 kN)
Power class
Career
Power class	4MT
Number in class	41
Numbers	3150-3190
First run	1907

The Great Western Railway (GWR) 3150 Class was a class of 2-6-2T side tank steam locomotive.

History edit

Churchward based the 3150 class on his 3100 (later 5100) class. They used the larger and heavier Standard 4 boiler and so had greater boiler capacity, but were consequently heavier and thus restricted to Red routes. They were principally heavy suburban passenger traffic engines. Five of the class were rebuilt into the Collett 3100 Class. None of the class were preserved.

Table of orders and numbers^[2]
Year	Quantity	Lot No.	Works Nos.	Locomotive numbers
1906	1	159	2157	3150
1907	20	169	2239–2258	3151–3170
1907–08	20	172	2280–2299	3171–3190

References edit

^ GWR Engines - Names, Numbers, Types, Classes, ETC. of Great Western Railway Locomotives. Great Western Railway. 1938. p. 70.
^ Allcock et al. (1968), pp. 30–31.

Allcock, N. J.; Davies, F. K.; le Fleming, H. M.; Maskelyne, J. N.; Reed, P. J. T.; Tabor, F. J. (1968) [1951]. White, D. E. (ed.). The Locomotives of the Great Western Railway, part one: Preliminary Survey. Kenilworth: RCTS.

External links edit

The Great Western Archive
Class 3150 Details at Rail UK

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[1] GWR Engines - Names, Numbers, Types, Classes, ETC. of Great Western Railway Locomotives. Great Western Railway. 1938. p. 70.

[FOOTNOTEAllcockDaviesle_FlemingMaskelyne196830–31-2] Allcock et al. (1968), pp. 30–31.

[1]

[2]

GWR 3150 Class

Contents

History edit

See also edit

References edit

External links edit