LB&SCR H2 class

The London, Brighton and South Coast Railway H2 class was a class of 4-4-2 steam locomotives for express passenger work. They were designed when D. E. Marsh was officially Locomotive Superintendent, and were built at Brighton Works in 1911 and 1912.

LB&SCR H2 class
H2 32421 'South Foreland', at Farnborough 8 July 1950
Type and origin
Power typeSteam
DesignerD. E. Marsh/L. B. Billinton
BuilderBrighton Works
Build date1911–1912
Total produced6
Specifications
Configuration:
  Whyte4-4-2
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Leading dia.3 ft 6 in (1.067 m)
Driver dia.6 ft 7 12 in (2.019 m)
Loco weight69 long tons 5 cwt (155,100 lb or 70.4 t) (77.6 short tons)
Fuel typeCoal
Boiler pressure170 psi (1.17 MPa) 200 psi (1.38 MPa) (1938)
CylindersTwo, outside
Cylinder size21 in × 26 in (533 mm × 660 mm)
Performance figures
Tractive effort20,840 lbf (92.7 kN) 24,518 lbf (109.1 kN) (1938)
Career
Operators
ClassH2
Power classBR: 4P
Withdrawn1949–1958
DispositionAll original locomotives scrapped, replica under construction

Background

During 1911 D. E. Marsh was on leave of absence due to sickness, and his assistant Lawson Billinton was granted authority to construct a further six 4-4-2 'Atlantic' locomotives similar to the Marsh H1 class but incorporating the Schmidt superheater.

Construction and use

The new H2 class locomotives built by Brighton railway works and introduced between June 1911 and January 1912. They were an immediate success and shared with the H1 class the London to Brighton express trains including the heavily loaded Pullman services the Brighton Limited, and the Southern Belle, which the LB&SCR described as "the most luxurious train in the World".

As with the non-superheated class they were gradually replaced on the London-Brighton express trains in 1925/6 by the "King Arthur" and "River" classes, but there was still plenty of work for them on other express services, including boat trains connecting with the Newhaven-Dieppe ferry service. At the same time they were all named after geographical features of the south coast.

Oliver Bulleid, familiar with the class from his time at the LNER, increased the boiler pressure of the H2 class from 170 psi to 200 psi starting in 1938 to match the H1.[1]

Following the cessation of the cross-channel ferries after 1940, as a result of the Second World War, the class were left with little work to do and several were put into store or else moved to miscellaneous duties in southern England. The H2 class however returned to the boat trains after the end of the war and continued until the mid-1950s.

Withdrawal

One member of the class was withdrawn in 1949, but the remainder continued in regular use until 1956. No. 32424 "Beachy Head" was the last survivor, it was withdrawn in April 1958 and none were preserved.

Preservation

Beachy Head replica, under construction
LB&SCR H2 Atlantic No. 32424 "Beachy Head" replica under construction

No examples of the H2 class were preserved, but on 29 October 2000 the Bluebell Railway announced its intention to reconstruct a replica of SR/BR period Beachy Head. At the time of writing many surviving locomotive parts had been assembled including an ex-GNR 'Atlantic' boiler, and an ex-LB&SCR B4 class tender chassis.[2] The boiler was tested around August 2018.

Models

Bachmann Branchline are producing an OO scale model of the class in two variations.

31-920 H2 Class Atlantic 4-4-2 No. 2421 South Foreland[3] in Southern Railway olive green livery; and 31-921 No. 32424 Beachy Head in BR black livery with early emblem.[4]

Locomotive Summary

H2 class fleet summary
LB&SC Number Built S.R. Number Name B.R. Number Withdrawal
421 June 1911 2421 South Foreland 32421 August 1956
422 July 1911 2422 North Foreland 32422 September 1956
423 September 1911 2423 The Needles 32423 May 1949
424 September 1911 2424 Beachy Head 32424 April 1958 Replica under construction
425 December 1911 2425 Trevose Head 32425 September 1956
426 January 1912 2426 St. Alban's Head 32426 August 1956

Sources

Bibliography

  • Bradley, D.L. (1974) Locomotives of the London Brighton and South Coast Railway Part 3, Railway Correspondence and Travel Society.
  • English, Jeremy (2014). LBSCR Atlantics. Ian Allan. ISBN 978-0-7110-3791-5.CS1 maint: ref=harv (link)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.