most aircraft built by dokuchayev were modified farman designs, each unique. his first aircraft, completed in 1910, was an anzani-powered biplane of pusher configuration. with 50 hp, the aircraft was tested, but may never have flown. in 1912, he completed a sesquiplane version of a farman iv, and in 1914 he flew another modified farman type, this time a trainer aircraft with equal span wings and producing 80 hp with its gnome-rhone engine. his fourth model was a return to the sesquiplane configuration, producing a trainer with three rudders operated on skis. number 5 was a simple monoplane of his own design, but his final design was another farman modification.