L&YR Class 4

L&YR Class 4

Type and origin Power type Steam Designer George Hughes Build date Rebuilt 1908-1909 Total produced 6

Specifications Configuration 4-4-0 Gauge 4 ft 8 ^1⁄2 in (1,435 mm) Driver diameter 7 ft 3 in (2.210 m) Loco weight 48.75 long tons (49.53 t) Fuel type Coal Boiler pressure 180 psi (1.24 MPa) Cylinders 2 Cylinder size 19 in × 26 in (483 mm × 660 mm) or 20 in × 26 in (508 mm × 660 mm) Valve gear Joy or Walschaerts

Performance figures Tractive effort 17,576 lbf (78.2 kN) (19") 18,290 lbf (81.4 kN) (20")

Career Operators L&YR, LMS Power class LMS 3P Withdrawn 1925-1926 Disposition All scrapped

The L&YR Class 4 was a class of 4-4-0 steam locomotives of the Lancashire and Yorkshire Railway. The class comprised six rebuilds, with superheater, of L&YR Class 3 locomotives. All six passed to the London, Midland and Scottish Railway at the grouping in 1923.^[1]

Overview

There were two different versions of the rebuild. One had 19" bore cylinders and Joy valve gear. The other had 20" bore cylinders and Walschaerts valve gear.

Numbering

L&YR no.	LMS no.	Cylinders
1112	10190	19"
1110	10191	20"
1104	10192	20"
1098	10193	20"
1105	10194	20"
455	10195	19"

Withdrawal

Withdrawals began in 1925 and the last locomotive was withdrawn and scrapped in 1926. None have been preserved.

References

1. Casserley, H.C. and Johnston, S.W., Locomotives at the Grouping, no.3, LMS, page 105, Ian Allan, 1966