LSWR 318 class

Specifications
Specifications
Configuration:;
• Whyte	4-4-0T
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft (0.914 m)
Driver dia.	5 ft 0.5 in (1.537 m)
Axle load	15.475 long tons (15.723 t; 17.332 short tons)
Loco weight	42.1–45.2 long tons (42.8–45.9 t; 47.2–50.6 short tons)
Fuel type	Coal
Water cap.	1,000 imp gal (4,500 L; 1,200 US gal)
Boiler pressure	120–130 psi (8.3–9.0 bar; 830–900 kPa) (new); 150 psi (10 bar; 1,000 kPa) (modified)
Heating surface:
• Tubes	912.6 sq ft (85 m2)
Cylinders	Two, outside
Cylinder size	16 in × 20 in (406 mm × 508 mm)

Type and origin
Type and origin
Power type	Steam
Builder	Beyer, Peacock and Company
Build date	1875
Total produced	6

LSWR 318 class
LSWR 318 class
Power type
Type and origin
Power type	Steam
Builder	Beyer, Peacock and Company
Build date	1875
Total produced	6
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-0T
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft (0.914 m)
Driver dia.	5 ft 0.5 in (1.537 m)
Axle load	15.475 long tons (15.723 t; 17.332 short tons)
Loco weight	42.1–45.2 long tons (42.8–45.9 t; 47.2–50.6 short tons)
Fuel type	Coal
Water cap.	1,000 imp gal (4,500 L; 1,200 US gal)
Boiler pressure	120–130 psi (8.3–9.0 bar; 830–900 kPa) (new); 150 psi (10 bar; 1,000 kPa) (modified)
Heating surface:
• Tubes	912.6 sq ft (85 m2)
Cylinders	Two, outside
Cylinder size	16 in × 20 in (406 mm × 508 mm)
Operators
Career
Operators	LSWR
Class	318
Withdrawn	1906–1913
Disposition	All scrapped

The LSWR 318 class (also known as 'Plymouth' or 'Metropolitan' tanks) was a class of six passenger 4-4-0 tank locomotives supplied by Beyer, Peacock and Company in 1875 for the newly completed Exeter-Plymouth line. They proved to be unsuited to the task for which they were purchased, but were found alternative employments elsewhere on the system.