This is a list of military aircraft used by the Central Powers in World War I
Austro-Hungarian aircraft.
Built specifically for or in Austria-Hungary, whose designation system was based on the German one, but with duplications for unrelated designs. German designs used by Austria-Hungary and Germany are in German section.
Bulgarian aircraft.
Lacking an indigenous aviation industry capable of producing military aircraft, Bulgaria primarily relied on Germany for aircraft.
Ottoman aircraft.
Lacking an indigenous aviation industry, the Ottoman Empire primarily relied on Germany for aircraft, although a number of French pre-war aircraft were used in the early part of the war. The Ottoman Empire also operated two Avro 504 light fighter reconnaissance aircraft. Later on, they were used as trainer aircraft
References.
Notes.
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