This aircraft paper model is a Fokker Dr.I, a World War I fighter aircraft built by Fokker-Flugzeugwerke, the paper model was created by Gahm. The scale of the papercraft is in 1:32. It became renowned as the aircraft in which Manfred von Richthofen gained his last 19 victories, and in which he was killed on 21 April 1918.
There is another version of WWI Fokker Dr.I at the site: WWI Triplane Fokker Dr.I free papercraft. You can downoad the paper fighter here: WWI Fokker Dr.I Ver.2 Free Aircraft Paper Model Download