Canadian National class O-8 0-6-0T

Grand Trunk Railway F3 & F4
Canadian National Railways O-8
Type and origin
Power type Steam
Builder Grand Trunk Railway's Point St. Charles Shops
Build date 1884–1895
Total produced 44
Specifications
Configuration 0-6-0T
UIC class C n2t
Gauge 4 ft 8 12 in (1,435 mm)
Driver diameter 58 in (1,473 mm)[1]
Boiler pressure 140 lbf/in2 (965 kPa)[1]
Cylinders Two
Cylinder size 18 in × 22 in (457 mm × 559 mm)[1]
Performance figures
Tractive effort 15,000 lbf (66.7 kN)[1]
Career
Operators Grand Trunk Railway
Canadian National Railways
Class GT F3 → CN O-8-b
GT F4 → CN O-8-a
Retired 1918–1940

Canadian National Railway class O-8 was a class of 0-6-0T steam locomotives. Forty-four tank locomotives were built by the Grand Trunk Railway (GT) in their Point St. Charles shops from 1884 through 1895. Most were built with round-topped saddle-tanks and classified as F4 by GT and later O-8-a by CN, but the eight built in 1887 had rectangular side tanks and were designated as class F3 by GT and O-8-b by CN. Thirty-nine of the class survived to receive CN numbers, but most were scrapped or sold within the first decade of CN operation. Two remained in service until 1940. CN number 7105 was sold to Consolidated Sand and Gravel Company in 1928 and served as their number 101 until repurchased in 1952 for the CN Museum Train. It was renumbered 247 and transferred to the Canada Science and Technology Museum in 1967.[1]

Date Works numbers GT numbers (first) GT numbers (1898) GT numbers (1902) GT numbers (1910) CN Nos. (1923) Quantity Retired Notes[2]
1880 1053–1054 20, 23 621–622 16–17 2567–2568 2 1918 sold to industry
1884 1140–1143, 1146–1147, 1145–1146 13–19, 21 623–630 18–25 2569–2576 7085–7091 8 1919–1937
1887 1155–1162 25–26, 29–30, 34–37 631–638 26–33 2577–2584 7118–7123 8 1920–1928 built with side tanks; GT class F3, CN O-8-b; one sold to industry
1889 1173–1178 22, 24, 27, 32–33, 38 639–644 34–39 2585–2590 7092–7097 6 1925–1926
1893–1894 1264–1273 5–8, 28, 31, 247–250 645–650, 662–664, 651 40–45, 57–59, 47 2591–2596, 2598–2600, 2597 7098–7103, 7105–7107, 7104 10 1925–1940 Five sold to industry
1895 1282–1288, 1279–1281 251–257, 46, 245–246 652–661 47–56 2601–2610 7108–7117 10 1924–1940

References

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