LMS Stanier Mogul

Infobox Locomotive
powertype=Steam
name = LMS Stanier Mogul


designer = William Stanier
builder = LMS Crewe Works
builddate = 1933–1934
totalproduction = 40
whytetype = 2-6-0
uicclass = 1'Ch
gauge = RailGauge|ussg
leadingsize = convert|39.5|in|m|3|abbr=on
driversize = convert|66|in|m|3|abbr=on
length = 59 ft 10¾ in
weight = convert|69.10|LT|t|1
fueltype = Coal
fuelc
convert|5|LT|t|1
waterc
convert|3500|impgal|l|abbr=on|lk=on
cylindercount = Two, outside
cylindersize = 18×26 in (457×660 mm)
valvegear = Walschaerts, piston valves
boiler=LMS type 3D
fireboxarea = convert|155|sqft|abbr=on
firearea = convert|27.75|sqft|abbr=on
boilerpressure = convert|225|psi|MPa|2|abbr=on|lk=on
tractiveeffort = convert|26290|lbf|kN|2|abbr=on|lk=on
railroadclass= 5P4F, later 5P5F, later 6P5F, later 5
retiredate = 1963–1967
disposition = One preserved, remainder scrapped

The London Midland and Scottish Railway (LMS) Stanier 2-6-0 or Stanier Mogul is a class of 2-6-0 mixed traffic steam locomotive. Forty were built between October 1933 and March 1934.

Overview

Although all built at Crewe Works, they were designed at Horwich Works and were developed from the Horwich Mogul, the LMS Hughes "Crab" 2-6-0. They had the addition of several features brought over from the Great Western Railway by newly-arrived Chief Mechanical Engineer William Stanier, most notably the taper boiler. (Stanier would have been familiar with the GWR 4300 Class). In an effort to please Stanier, Horwich had designed in a GWR style top-feed cover and locomotive 13245 appeared with the feature fitted. Stanier was not at all pleased, ordering it promptly removed and replaced with the normal LMS cover.

Due to a higher boiler pressure than the "Crabs" the cylinders were 3" smaller in diameter and so the cylinders were able to be mounted horizontally: the only Stanier design to do so. Like the "Crabs" they were connected to a Fowler tender that was narrower than the locomotive. When built the first ten locomotives had no water pick-up gear fitted to their tenders.

They were initially numbered 13245-84 (following on from the "Crabs"), but as standard locomotives, in the LMS 1933 renumbering scheme they were renumbered 2945-84 in 1934 (the "Crabs" becoming 2700-2944). BR added 40000 to their numbers so they became 42945-84. They were always painted black, and this was lined out except during the austere periods of the 1940s and towards the end of steam.

From the end of 1934 Stanier turned to a larger 4-6-0 for his mixed traffic class, this the LMS Black Five Class.

Technical

* Power Classification: 4F when new, reclassified 5P4F in 1934, then 5P5F in 1938/9 and finally 5F in 1948.
* Introduced: 1933-1934 – Lot 104
* Designer: Sir William Stanier
* Weights:
** Loco - 69 t 2 cwt
** Tender - 42 t 4 cwt
* Driving Wheel: 5' 6"
* Boiler pressure: 225 psi
* Cylinders (2): 18" x 26" Outside
* Tractive Effort: 26,290 lbf
* Valve Gear: Walschaert (piston valves)

Details

Withdrawals

Withdrawals commenced in November 1963 with the last one being withdrawn in February 1967. One, 13268/(4)2968, the penultimate locomotive to be withdrawn, into preservation. This locomotive was restored on the Severn Valley Railway and is currently operational.

References

* Brian Haresnape "Stanier Locomotives" Ian Allan 1970
* Hugh Longworth "British Railway Steam Locomotives 1948-1968" ISBN 0-86093-593-0
* Ian Sixsmith "The Book Of The Stanier 2-6-0's" Irwell Press,ISBN 1-903266-80-9
*

External links

* [http://www.staniermogulfund.org.uk/ Stanier Mogul Fund]