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 type Steam Designer Henry Fowler Builder LMS Derby Works (98) LMS Crewe Works (40) Build date 1928–1932 Total produced 138
Specifications Configuration: ​  • Whyte 4-4-0  • UIC 2′B h2 Gauge 4 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) Length 54 ft 4 in (16.56 m) Loco weight 54.05 long tons (54.92 t; 60.54 short tons) Total weight 96.25 long tons (97.79 t; 107.80 short tons) Fuel type Coal Fuel capacity 4 long tons (4.1 t; 4.5 short tons) Water cap. 3,500 imp gal (16,000 L; 4,200 US gal) Firebox: ​  • Grate area 21 sq ft (2.0 m2) Boiler LMS type G7S Boiler pressure 180 lbf/in2 (1.24 MPa) Heating surface: ​  • Firebox 124 sq ft (11.5 m2)  • Tubes 1,034 sq ft (96.1 m2) Superheater: ​  • Heating area 252 sq ft (23.4 m2) later 246 sq ft (22.9 m2) Cylinders Two, inside Cylinder size 19 in × 26 in (483 mm × 660 mm) Valve gear Stephenson Valve type Piston valves
Performance figures Tractive effort 17,730 lbf (78.87 kN)
Career Operators London, Midland and Scottish Railway →British Railways Power class 2P Numbers LMS: 563–700 BR: 40563–40700 Withdrawn 1934 (2), 1954–1962 Disposition All scrapped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

Year	Number in service at start of year	Number withdrawn	Locomotive numbers
1934	138	2	591, 639.
1954	136	1	40662.
1957	135	1	40676.
1959	134	43	40565/67–68/73/76/82/87/89–90/94/98–601/05–08/10–11/16–17/33/36/44/49/53–56/58/60/66–67/73–75/77/79–80/88/93/99.
1960	91	10	40581/83–84/88, 40630–31/52/71/90/98.
1961	81	66	40566/69–72/74–75/77–80/85–86/92–93/95–97, 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.
1962	15	15	40563–64, 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.