GER Class Y65

The GER Class Y65 was a class of twelve 2-4-2T steam locomotives designed by S. D. Holden and built by the company's Stratford Works in 1909–1910. They all passed to the London and North Eastern Railway at the 1923 grouping and received the classification F7.

GER Class Y65
LNER Class F7
Type and origin
Power typeSteam
DesignerS. D. Holden
BuilderStratford Works
Build date1909–1910
Total produced12
Specifications
Configuration:
  Whyte2-4-2T
  UIC1B1 n2t
Gauge4 ft 8 12 in (1,435 mm)
Leading dia.3 ft 6 in (1.067 m)
Driver dia.4 ft 10 in (1.473 m)
Trailing dia.3 ft 6 in (1.067 m)
Length30 ft 11 in (9.42 m) over buffers
Axle load14.15 long tons (14.38 t)
Adhesive weight24.85 long tons (25.25 t)
Loco weight45.70 long tons (46.43 t)
Fuel capacity2.0 long tons (2.0 t)
Water cap1,000 imp gal (4,500 l; 1,200 US gal)
Firebox:
  Firegrate area
12.2 sq ft (1.13 m2)
BoilerLNER diagram 42
Boiler pressure160 lbf/in2 (1.10 MPa)
Heating surface872 sq ft (81.0 m2)
  Tubes797.2 sq ft (74.06 m2)
  Firebox75.7 sq ft (7.03 m2)
CylindersTwo, inside
Cylinder size15 in × 22 in (381 mm × 559 mm)
Valve gearStephenson
Valve typeSlide valves
Loco brakeWestinghouse air
Train brakesWestinghouse air
Performance figures
Tractive effort11,607 lbf (51.63 kN)
Career
Operators
Class
  • GER: Y65
  • LNER: F7
NicknamesCrystal Palace tanks
Axle load classLNER: Route availability 2, except Scotland: 1
Withdrawn1931–1948
DispositionAll scrapped

History

These locomotives were fitted with 15-by-22-inch (381 mm × 559 mm) cylinders and 4-foot-10-inch (1.473 m) diameter driving wheels. They were intended to displace the elderly E22 class 0-6-0T locomotives from their light branch line duties, but in the end, the E22s were the preferred locomotives for this work. They were all initially fitted with Westinghouse air brake equipment.

Table of orders and numbers[1]
YearOrderBuilderQuantityGER Nos.LNER Nos.1942 No.1946 No.Notes
1909Y65Stratford Works21300–13018300–83017593
1909–10A67Stratford Works101302–13118302–83117594–75987073–7094

Between 1915 and 1921 four (1303–1305, 1309) were fitted for push-pull working using the compressed air system; these required the fitting of an extra Westinghouse pump to the side of the locomotives. In 1924, 8307 was also push-pull fitted using the mechanical system for use on the Great Central section; no extra pump was needed, but it did gain a vacuum ejector. [2]

All had survived to pass to the LNER in 1923; the first retirement started in 1931 when four were withdrawn.

Three (8301/08/10) were sent to Scotland in 1931–32 and as a result of the move they had their Westinghouse air brake replaced with a steam brake and vacuum ejector.

The locomotives had large cabs, with large spectacle plate front and rear, which earned the nickname "Crystal Palace tanks"; those in Scotland were nicknamed "Tomato houses".

Withdrawals continued from 1938; six locomotives were left in 1942 when they were renumbered 7593–7598 in order to clear the 8300-block for new B1 class locomotives.[2]

Two locomotives lasted long enough to be renumbered in the 1946 scheme; they became the property of British Railways in 1948, but both were withdrawn the same year without receiving their BR number.

Table of withdrawals[1]
YearQuantity in
service at
start of year
Quantity
withdrawn
Locomotive numbers
19311248302, 8306, 8309, 8311
1938818300
1939718303
1943637593 (ex-8301), 7595 (ex-8305), 7596 (ex-8307)
1944317594 (ex-8304)
1948227093, (ex-7597, exx-8308) 7094 (ex-7598, exx-8310)

References

  1. Baxter 2012, pp. 96–97.
  2. Fry 1964, p. 77.
  • Aldrich, C. Langley (1969). The Locomotives of the Great Eastern Railway 1862–1962 (7th ed.). Wickford, Essex: C. Langley Aldrich. OCLC 30278831.
  • Baxter, Bertram (2012). Baxter, David; Mitchell, Peter (eds.). British Locomotive Catalogue 1825–1923, Volume 6: Great Eastern Railway, North British Railway, Great North of Scotland Railway, Midland & Great Northern Joint Railway, remaining companies in the LNER group. Southampton: Kestrel Railway Books. p. 96–97. ISBN 978-1-905505-26-5.
  • Fry, E. V., ed. (April 1964). Locomotives of the L.N.E.R., part 7: Tank Engines - Classes A5 to H2. Kenilworth: RCTS. pp. 76–78. ISBN 0-901115-13-4.
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