Steam Locomotives of the 20th Century

The following classes of steam locomotives existed during the 20th Century. Several other types also operated on Queensland Railways but they were extinct by the turn of the century and are not listed.

Class	Number Built	First Engine Built	Last Engine Built	First Engine Written Off	Last Engine Written Off
4D10 Ipswich Class	3	1884	1885	1900	1902
4D11½ Abt	2	1898	1898	1916	1922
6D11 Crane	2	1902	1902	1927	1927
6D11½ Motor	3	1882	1882	1902	1902
6D13 F Tank	2	1882	1882	1926	1926
6D13½ Abt	6	1900	1915	1926	1952
6D13½ later B13½	6	1904	1905	1951	1961
6D16	20	1901	1902	1942	1951
6D17 later D17	30	1924	1942	1961	1968
8D15	5	1885	1885	1922	1938
A10 Baldwin (American Passenger)	2	1879	1879	1902	1902
A10 Fairlie (A Class)	3	1877	1877	1902	1902
A10 Nielson (B Class)	13	1865	1866	1887	1914
A11 A Class (large)	1	1877	1877	1902	1902
A12 (American Passenger)	43	1882	1891	1901	1929
A12 (small) (American Passenger)	3	1877	1877	1912	1913
A14	8	1894	1895	1922	1930
AC16	20	1943	1943	1957	1969
Australian Standard Garratt	23	1943	1944	*	*
B 15	98	1889	1919	1903	1934
B11 (C Class)	4	1867	1867	1902	1904
B11 Baldwin	2	1879	1879	1913	1917
B12 (D Class)	4	1869	1869	1902	1902
B12 (E Class)	25	1874	1882	1895	1929
B13	112	1883	1895	1913	1954
B15 Con	93	1901	1929	1935	1968
B16½	1	1918	1918	1950	1950
B17	21	1911	1914	1950	1960
B18¼	83	1926	1947	1967	1970
BB18¼	55	1950	1958	1967	1970
Beyer Garratt	30	1950	1950	1968	1969
C13 Baldwin	2	1879	1879	1900	1902
C13 Dubs - Small Consolation	6	1883	1883	1922	1927
C15 Large Consolation	2	1879	1880	1916	1926
C16	152	1903	1918	1934	1970
C16 Baldwin Large Consolation	3	1882	1884	1922	1925
C17	227	1920	1953	1954	1970
C18 later CC19	3	1914	1914	1956	1961
C19	26	1922	1935	1955	1962
DD17	12	1948	1952	1966	1969
PB 15	203	1899	1924	1941	1970
PB15 (1924)	30	1925	1926	1967	1970

* All engines were withdrawn from service in 1945

In addition to the above list, there were also engines obtained from local authorities under the North Coast Railway Act of 1910 and from the Chillagoe Railway & Mining Co in 1919.