Highland Railway F Class

Highland Railway F class
Power type Steam
Builder Dübs & Co. (10)
HR Lochgorm Works (7)
Build date 1874 (10), 1876–1888 (7)
Configuration 4-4-0
UIC classification 2′B
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Driver diameter 6 ft 3 in (1,905 mm)
Locomotive weight 41 tons 0 cwt (91,800 lb or 41.6 t)
Boiler pressure 150 lbf/in² (1.03 MPa)
Cylinders Two, outside
Cylinder size 18 × 24 in (457 × 610 mm)
Career Highland Railway
London, Midland & Scottish
Class HR: F
LMS:
Number in class 17
Disposition All scrapped

The Highland Railway F class 4-4-0s were a class of British steam locomotives introduced in 1874. The first 10 were built by Dübs and Company in 1874. A further seven were built in Lochgorm works between 1876 and 1888.

They featured 6-feet 3-inch driving wheels and weighed 41 tons. The original batch had boilers pressed to 140 pounds-force per square inch (970 kPa), the later batch had slightly smaller boilers but a higher pressure of 150 lbf/in² (1,030 kPa). Of typical Allan/Jones appearance, they had outside cylinders of 18 by 24 inches (457 by 610 mm).

The first 10 were numbered 60 to 69 and originally named as follows:

HR No. Name Notes
60
 Bruce
61
 Sutherlandshire
62
 Perthshire
63
 Inverness-shire
64
 Morayshire
65
 Nairnshire
66
 Ross-shire
67
 The Duke
68
 Caithness-shire
69
 The Lord Provost

All were later renamed at least once. No. 62 was renamed name three times.

The second batch were originally as follows:

HR No. Name Notes
4
 Ardross Renumbered 31 in 1899
71
 Clachnacuddin
72
 Bruce
73
 Thurlow
74
 Beaufort
75
 Breadalbane
84
 Dochfour

Some of these were also later renamed.

Withdrawal commenced in 1907, and No. 71 was broken up in 1915. The remainder survived into 1919, but only five (numbers 67, 72, 74, 75 and 84) made it into LMS ownership. All had been scrapped by 1947.

References

W. Barclay (1855–1865)
W. Stroudley (1865–1869)
D. Jones (1870–1896)
P. Drummond (1896–1912)
F. G. Smith (1912–1915)
C. Cumming (1915–1922)
Miscellaneous