LSWR H16 class

The LSWR H16 class were five 4-6-2 tank locomotives designed by Robert Urie for the London and South Western Railway (LSWR) in 1921–1922. They were the last new design for the LSWR and their only Pacific-type design.

LSWR H16 class
H16 class 4-6-2T No. 30517 takes an empty stock train from Waterloo through Vauxhall on Saturday 25 August 1962
Type and origin
Power typeSteam
BuilderLSWR Eastleigh Works
Build dateNovember 1921 – February 1922
Total produced5
Specifications
Configuration:
​
 • Whyte4-6-2T
 • UIC2′C1′ h2t
Gauge4 ft 8 1⁄2 in (1,435 mm)
Leading dia.3 ft 7 in (1.092 m)
Driver dia.5 ft 7 in (1.702 m)
Trailing dia.3 ft 7 in (1.092 m)
Length46 ft 0 in (14.02 m)
Width9 ft 2 in (2.79 m)
Height13 ft 3 1⁄4 in (4.04 m)
Axle load19.80 long tons (20.12 t)
Loco weight96.40 long tons (97.95 t)
Fuel typeCoal
Fuel capacity3.50 long tons (3.56 t)
Water cap2,000 imp gal (9,100 l; 2,400 US gal)
Firebox:
 • Firegrate area		27 sq ft (2.5 m2)
Boiler pressure180 psi (1.24 MPa)
Heating surface:
 • Tubes and flues		1,267 sq ft (117.7 m2)
 • Firebox139 sq ft (12.9 m2)
Superheater:
​
 • TypeEastleigh (later Maunsell)
 • Heating area231 sq ft (21.5 m2)
CylindersTwo, outside
Cylinder size21 in × 28 in (533 mm × 711 mm)
Performance figures
Tractive effort28,200 lbf (125.4 kN)
Career
Operators
ClassLSWR / SR: H16
Power class
  • LSWR/ SR: A
  • BR: 5F (later 6F)
Numbers
  • LSWR: 516–520
  • SR: E516–E520 → 516–520
  • BR: 30516–30520
NicknamesGreen Tanks
Withdrawn1962
DispositionAll scrapped

Background

As part of the project to construct a marshalling yard at Feltham in West London, Urie produced two locomotive designs, the G16 "Black Tanks" to shunt the new yard, and the H16 "Green Tanks" to work transfer freights to the London area yards of the other railway companies.

Construction history
YearOrderQuantityLSWR numbersNotes
1921–22
H16
5
516–520

Livery and numbering

LSWR and Southern Railway

When originally built they were numbered 516–520. On passing to the Southern Railway, they had their LSWR numbers prefixed with an ‘E’. The locomotives lost the prefix between 1931–32. The Southern Railway painted the H16 class in passenger green paint, rather than goods engine black.[1]

H16 class 4-6-2T No. 30520 ( on empty stock duty at Clapham Junction 1960.

Post-1948 (nationalisation)

All five engines were passed to British Railway who renumbered them 30516–30520. All were withdrawn in 1962, and scrapped.

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References

Notes
  1. Russell (1991). p. 262

Bibliography
  • Russell, J.H (1991). A Pictorial Record of Southern Locomotives. OPC Haynes. pp. 262–263.
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