Doncaster Aviation Contest
1909
1909
September 1951
1991-1992
1991
1992
1925
1905
1914
1912
June 1897
1912
1899
1924
1911
1935
1911
1922
1934
1959
1988
1930
1909
[1933]
1923
1932
2000
1964
1926
1932
1948
1881
1921
1991-1992
1914
1899
1988
1927
1984
1910
1927
1937
1925
1915
1916
1897
1897
2007-11
1939
1899