LMS Class 2P 4-4-0

The London Midland and Scottish Railway Class 2P 4-4-0 was a class of steam locomotive designed for light passenger work.

LMS Class 2P 4-4-0
40688 at Kilmarnock
Type and origin
Power typeSteam
DesignerHenry Fowler
Builder
Build date1928-1932
Total produced138
Specifications
Configuration:
​
 • Whyte4-4-0
 • UIC2′B h2
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Leading dia.3 ft 6 1⁄2 in (1.080 m)
Driver dia.6 ft 9 in (2.057 m)
Length54 ft 4 in (16.56 m)
Loco weight54.05 long tons (54.92 t; 60.54 short tons)
Total weight96.25 long tons (97.79 t; 107.80 short tons)
Fuel typeCoal
Fuel capacity4 long tons (4.1 t; 4.5 short tons)
Water cap3,500 imp gal (16,000 L; 4,200 US gal)
Firebox:
 • Firegrate area		21 sq ft (2.0 m2)
BoilerLMS type G7S
Boiler pressure180 lbf/in2 (1.24 MPa)
Heating surface:
 • Tubes		1,034 sq ft (96.1 m2)
 • Firebox124 sq ft (11.5 m2)
Superheater:
​
 • Heating area252 sq ft (23.4 m2) later 246 sq ft (22.9 m2)
CylindersTwo, inside
Cylinder size19 in × 26 in (483 mm × 660 mm)
Valve gearStephenson
Valve typePiston valves
Performance figures
Tractive effort17,730 lbf (78.87 kN)
Career
Operators
Power class2P
Numbers
  • LMS: 563–700
  • BR: 40563–40700
Withdrawn1934 (2), 1954–1962
DispositionAll scrapped

Overview

The class was introduced in 1928 and was a post-grouping development of the Midland Railway 483 Class with modified dimensions and reduced boiler mountings.

The numbering continued from where the Midland engines left off at 563 and eventually reached 700. 138 were built, though numbering is slightly complicated by renumberings and transfers.

Details
Table of orders and numbers
Numbers Lot No. Date
built		 Built at Notes
Original 2nd BR
563–571 — 40563–40571 49 1928 Derby
572 601 40601 49 1928 Derby Experimentally fitted with Owen's double port exhaust valves from new and renumbered immediately after entering service
572 — 40572 49 1928 Derby Replacement for first No. 572
573–574 — 40573–40574 49 1928 Derby
575–576 633–634 40633–40634 49 1928 Derby Transferred to S&DJR Nos 44–45 in 1928, retaken into LMS stock 1930
575–576 — 40575–40576 67 1929 Derby Replacement for engines transferred to S&DJR
577–579 — 40577–40579 49 1928 Derby
580 635 40635 49 1928 Derby Transferred to S&DJR No. 46 in 1928, retaken into LMS stock 1930.
580 — 40580 67 1929 Derby Replacement for engine transferred to S&DJR
581–600 — 40581–40600 49 1928 Derby
602–612 — 40602–40612 49 1928 Derby
613–628 — 40613–40627 67 1929 Derby
629–632 — 40629–40632 67 1930 Derby
636–660 — 40636–40660 76 1931 Crewe
661–665 — 40661–40665 77 1931 Derby
666–685 — 40666–40685 77 1932 Derby
686–700 — 40686–40700 85 1932 Crewe

Numbers 633 and 653 were fitted with Dabeg feedwater heater in 1933.[1] Numbers 591 and 639 were withdrawn in 1934 after being heavily damaged in an accident at Port Eglinton Junction near Cumberland Street Station, Glasgow on 6 September of the same year. After nationalisation in 1948, British Railways added 40000 to the numbers of the remaining 136 engines. Further withdrawals came between 1954 and 1962. All were scrapped.

No. 40700 at Masbury Summit on a Somerset and Dorset train from Bath (Green Park) to Templecombe on 22 August 1959
No. 40700 at Bath Green Park Depot on 25 July 1961. Withdrawn September 1962 and scrapped at Derby works in December 1962
Table of withdrawals
YearNumber in
service at
start of year		Number
withdrawn		Locomotive numbers
19341382591, 639.
1954136140662.
1957135140676.
19591344340565/67–68/73/76/82/87/89–90/94/98–601/05–08/10–11/16–17/33/36/44/49/53–56/58/60/66–67/73–75/77/79–80/88/93/99.
1960911040581/83–84/88,
40630–31/52/71/90/98.
1961816640566/69–72/74–75/77–80/85–86/92–93/95–97,
40602–04/09/12–15/18–29/32/35/37/40–43/45/47–48/50–51/59/61/63/68–69/78/82–87/89/91–92/95.
1962151540563–64,
40634/38/46/57/64–65/70/72/81/94/96–97,
40700.

Models

Hornby produce a 00 gauge model based on the old Dapol (formerly Airfix) tooling which is reasonably accurate.[2] Graham Farish produced an N gauge model of the 4P 4-4-0 Compound when they were in Poole, Dorset, and the chassis for this could be modified to represent the 2P. Union Mills on the Isle of Man make a 2P in N gauge.

References
  1. Haresnape, Brian (February 1981) [1972]. Fowler Locomotives: A Pictorial History. Shepperton: Ian Allan. p. 97. ISBN 0-7110-0374-2. CX/0281.
  2. "Model Rail Database". Model Rail Database. Retrieved 13 September 2015.
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