I have broken down the total time in which
the aircraft were developed into seven periods:
December
1910 – May 1915 Pioneering days, but getting serious
May 1915 –
November 1918 Unbraced wings and war
machines
November
1918 – March 1925 War aftermath and first airliners
March 1925
– November 1931 Airliners and military series
November
1931 – March 1937 New
developments pick up
March 1937
– June 1941
Prepare
and fight war
October
1946 – November 1995 Recovery
and end of show
For each of these periods a separate page has
been created.