The Fokker Dr.I, often known simply as the Fokker Triplane, was a World War I fighter aircraft built by Fokker-Flugzeugwerke. The Dr.I saw widespread service in the spring of 1918. It became famous as the aircraft in which Manfred von Richthofen gained his last 17 victories, and in which he was killed on 21 April 1918.
Fokker Dr.I
Fokker V.4 prototype
Jasta 12 flightline at Toulis, France
Triplanes of Jasta 26 at Erchin, France
A triplane is a fixed-wing aircraft equipped with three vertically stacked wing planes. Tailplanes and canard foreplanes are not normally included in this count, although they occasionally are.
Sopwith Triplane in flight (2014)
A scale model of a Caproni Ca.60 flying boat.
A British Roe III Triplane in the United States in September 1910 with its designer, Alliot Verdon Roe, in the cockpit.
The Sopwith Triplane, the first triplane to see service in World War I.