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Queensland Railways steam locomotive classification

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Between 1864 and 1958, Queensland Railways ordered 47 types of locomotives for purposes such as freight, passenger and mail train use.

Classification

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Until 1889, each of the isolated sections of the Queensland Railways adopted its own locomotive numbering system. With the impending joining of most of the sections, in 1890 a new centralised classification system was adopted to eliminate duplications. Locomotives on the Southern & Western Railway retained their existing numbers, with locomotives on other networks renumbered where there was a duplication.[1][2]

The classification system consisted of a letter, indicating the number of driving axles, followed by a number, indicating the cylinder diameter in inches and factions of inches. This was confusing for two reasons:


Where classification numbers were duplicated, the classes were usually distinguished by the name of the builder, e.g. A10 Baldwin, A10 Fairlie, A10 Neilson.[1][2]

In the case of tank locomotives, the number of driving wheels was added as a prefix, e.g. the 6D16 class had six driving wheels. With all four wheel tank locomotives, the prefix was dropped, thus the 6D16 class became the D17 class.[1][2]

Number of driving axles International classification QR classification
1 A -
2 B A
3 C B
4 D C
3 (Tank locomotive) D

Improved versions of a similar class were given a second identical letter. For example, the improved version of the D17 was the DD17.[citation needed]

Classes

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Classification
Image Years built Whyte notation Designation Cylinder diameter (inches) Driving axles Type Number in Class
A10 Avonside Locomotive 1864 2-4-0 A10 Avonside 10 2 Freight[citation needed] 4
A10 Neilson Locomotive 1865-1866 0-4-2 A10 Neilson class – Originally B class 10 2 Mixed 13
1867 2-6-0 B11 class – Originally C class 11 3 Freight[3] 4
1867 0-6-6-0 Double boilered Cross class 17 6 Freight[citation needed]
B12 Locomotive 1874-1882 2-6-0 B12 class – Originally E class 12 3 Mixed use[4]
1874 0-4-4-0 8D11 class 11 4 Tank[citation needed]
A10 Fairlie (Vulcan) Locomotive 1877 2-4-0 A10 Fairlie – Originally A class 10 2 Freight[5]
A10 Ipswich Locomotive 1877 2-4-0 A10 Ipswich 10 2 Freight[citation needed]
1878 2-4-0 A11 class – Originally Large A class 11 2 Mixed[6]
The Central Railway's A12 class number 11, later Queensland Railways no. 167. 1878 4-4-0 A12 (small) class – American Passenger class 12 2 Passenger 3
1879 4-4-0 A10 Baldwin – Originally American Passenger class 10 2 Passenger[7]
1879 2-8-0 C13 Baldwin class 13 4 Freight[8]
1879 2-8-0 C15 class – Originally Small Consolation class 15 4 Mixed[9]
B11 Baldwin No.3 on bridge at Kuranda Railway, Cairns. 1880 2-6-0 B11 Baldwin class 11 3 Freight, then shunting[10]
Macquarie Harbour breakwater construction, Tasmania. Ex Queensland railways locomotive. 1881 2-4-2T 4D9 class 9 2 Tank (Mixed use)[citation needed]
1882-1891 4-4-0 A12 class – Originally American Passenger class 12 2 Passenger[11]
1882 0-6-0T 6D11½ Motor class 11 1/2 3 Tank (Freight)[12]
1882 0-6-2T 6D13 – formerly F-class 13 3 Tank (Freight)[13]
1882 2-8-0 C16 Baldwin class – Large Consolidation class 15 4 Freight[14]
1883-1895 4-6-0 B13 class 13 3 Mixed use[15]
C13 Class Locomotive built by Dubs for the Maryborough Railway 1883 2-8-0 C13 Dubs class 13 4 Freight[16]
4D10 locomotive 1884-1885 2-4-2T 4D10 class 10 2 Tank (Passenger)[17]
1884 2-8-2T 8D15 class 15 4 Tank (Heavy Freight)[18]
1889-1899 4-6-0 B15 class 15 3 Freight[19]
1894-1895 4-4-0 A14 class 14 2 Passenger[20]
Abt rack locomotive at Mount Morgan, Queensland, ca. 1890-1900 1898 0-4-2T 4D11½ Abt class 11 2 Tank (Rack Freight)[21]
PB15 locomotive 1899-1926 4-6-0 PB15 class 15 3 Passenger, Shunter[22]
QGR, 6D8 1/2 Class, No.5 tank type, Innisfail Tramway, 1921 1900-1923 0-6-0T 6D8½ class 8 1/2 3 Tank (Passenger)[citation needed]
Abt rack locomotive No. 383 of the Razorback Range, Mount Morgan 1900-1915 0-6-0T 6D13½ Abt class 13 1/2 3 Tank (Rack Freight)[23]
6D16 locomotive 1901-1902 4-6-2T (originally), 4-6-4T (after rebuild) 6D16 class 16 3 Tank (suburban passenger)[24]
1902 0-6-0ST 6D11½ Crane class 11 1/2 3 Saddle Tank (Inspection)[25]
1903-1918 4-8-0 C16 class 16 4 Poison trains, mail trains, goods trains[26]
B13 1/2 398 – nicknamed Pompey – stored at the Ipswich Railway Workshops after being displayed for a long time. 1904-1905 0-6-0T 6D13½ later B13½ class 13 1/2 3 Tank (Shunter)[27]
B13 Baldwin Locomotive 1908 4-6-0 B13 Baldwin class 13 3 Freight[citation needed]
B17 Class No.681 at Ipswich Depot 1911 4-6-0 B17 class 17 3 Express Passenger[28]
1914 4-8-0 C18 later CC19 class 18 (then 19) 4 Express passenger[29]
No. 204 the sole member of the B16½ class 1918 2-6-2 B16½ class 16 1/2 3 Passenger[19]
C17 Locomotive 1920-1953 4-8-0 C17 class 17 4 Mail trains, suburban passenger, freight trains and passenger[30]
1922-1935 4-8-0 C19 class 19 4 Express passenger[31]
Advertisement for QGR, B9 1/2 Class, 0-6-2 narrow gauge tender engine built by John Fowler & Co. 1925 1923-1927 0-6-2 B9½ class 9 3 Freight[citation needed]
6D17/D17 locomotive 1924-1942 4-6-4T 6D17 later D17 class 17 3 Tank (suburban passenger)[24] 30
B18 1/4 Locomotive 1926-1947 4-6-2 B18¼ class 18 1/4 3 Express passenger, suburban passenger, mail trains and heavy freight[28] 83
1943 2-8-2 AC16 class 16 4 Mixed use[32] 20
1943-1945 4-8-2+2-8-4 2′D1′+1′D2′ Australian Standard Garratt 14.5 8 Heavy freight[33] 57
DD17 Locomotive 1948-1952 4-6-4T DD17 class 17 3 Suburban passenger[31] 12
BB18 1/4 Locomotive 1950-1958 4-6-2 BB18¼ class 18 1/4 3 Express passenger, mail trains, suburban passenger and heavy freight trains[34] 55
Beyer-Garratt 1950-1951 4-8-2+2-8-4 Beyer-Garratt class 13 3/4 8 Freight[35] 30

See also

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References

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  1. ^ a b c Armstrong, John (1985). Locomotives in the Tropics Volume 1. Brisbane: Australian Railway Historical Society. p. 8. ISBN 0 909937 13 3.
  2. ^ a b c Clark, Peter (2012). An Australian Locomotive Guide. Rosenberg Publishing. p. 16. ISBN 9781921719554.
  3. ^ "B11 – Originally C Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  4. ^ "B12 – Originally E Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  5. ^ "A10 Fairlie – Originally A Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  6. ^ "A11 – Originally Large A Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  7. ^ "A10 Baldwin – Originally American Passenger Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  8. ^ "C13 Baldwin Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  9. ^ "C15 – Originally Large Consolation Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  10. ^ "B11 Baldwin Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  11. ^ "A12 – Originally American Passenger Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  12. ^ "6D11½ Motor Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  13. ^ "6D13 – Originally F – Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  14. ^ "C16 Baldwin – Large Consolidation Classba « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  15. ^ "B13 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  16. ^ "C13 Dubs – Originally Small Consolation Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  17. ^ "4D10 – Ipswich Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  18. ^ "8D15 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  19. ^ a b "B15 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  20. ^ "A14 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  21. ^ "4D11½ Abt Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  22. ^ "PB15 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  23. ^ "6D13½ Abt Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  24. ^ a b "6D16 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  25. ^ "6D11½ Crane Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  26. ^ "C16 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  27. ^ "6D13½ later B13½ Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  28. ^ a b "B17 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  29. ^ "C18 later CC19 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  30. ^ "C17 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  31. ^ a b "C19 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  32. ^ "AC16 Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  33. ^ "Australian Standard Garratt « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  34. ^ "BB18¼ Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
  35. ^ "Beyer-Garratt Class « qrig.org – queensland railway's interest group". Retrieved 24 November 2019.
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