LMS STANIER 2-6-2T

The 'Stanier 2-6-2T' was a class of London, Midland and Scottish Railway (LMS) steam locomotive. They were designed by William Stanier based on the earlier LMS Fowler 2-6-2T.

Contents

Overview

Technical

Detail

Withdrawals

References

External links

Overview

Taper-boiler versions of Fowlers 1930 design, the general dimensions were the same with some improvements. They were under-boilered and although improved they were always considered to be indifferent performers. In some ways they were inferior to their predecessors. The cab was of Stanier’s usual excellent design with the coal bunker built higher than the rear cab windows but angled inwards to avoid them, thus giving good visibility when running bunker first.
The first 2 lots (71 – 144) were built with domeless boilers but the rest were built with improved boilers with separate top-feed and steam dome. Both types of boilers were later modified to carry Adams ‘Vortex’ blastpipe to improve steaming. These locomotives could always be identified by the larger diameter chimney.
The 139 locomotives were numbered 71-209 by the LMS, and after 1948 BR renumbered them 40071-209. The LMS classified them 3P.
In a final attempt to improve the locomotives 6 were rebuilt with larger 6B boilers; these were 169 in 1940, 163 in 1941, 148 and 203 in 1941 and 40142 & 40167 in 1956. The re-boilering was not considered to be cost effective.
They were to be found on various duties – stopping train, branch line, empty stock and banking.
They are generally considered to be the least successful of Stanier’s standard designs

Technical

Power Classification: 3P, reclassified 3MT in 1948.
Introduced: 1935-1938
Designer: Sir William Stanier.
Weights:

Loco - 71t 5cwt (Small Boiler), 72t 10cwt (Large Boiler).
Driving Wheel: 5' 3"
Boiler pressure: 200psi superheated
Cylinders (2): 17 ½ " x 26" (Outside)
Water: 1, 500 Galls. - Coal: 3 Tons
Tractive Effort: 21,485lbf
Valve Gear: Walschaert (piston valves)

Detail

Numbers		Lot numbers	Date built	Built at
LMS	BR
71-90	40071-90	117	1935	Derby
91-144	40091-144	126	1935	Derby
145-72	40145-72	139	1937	Derby
173-84	40173-84	139	1938	Derby
185-95	40185-95	140	1937	Crewe
195-209	40195-209	140	1938	Crewe

Withdrawals

First of class:

Small boiler – (10 locos) – Nov. 1959
Large boiler – 40163 – Nov. 1959
Last of class:

Small boiler – 40196 – Dec. 1962
Large boiler – 40148 – Sep. 1962
None have survived.

References

★ Brian Haresnape “Stanier Locomotives – a pictorial history” Ian Allan , 1970

★ Hugh Longworth ''British Railway Steam Locomotives 1948-1968'' - OPC - ISBN 0-86093-593-0

External links

★ http://www.railuk.co.uk/steam/getsteamclass.php?item=3P-B