One of the designs of the Russian flying instructor A. Ya. Dokuchayev [А. Я. Докучаев]. The 1913-1914 number 3 machine - the Докучаев-3 - was based on two Henry Farman design which gives this mix. The front part is based on the Farman-VII and the tail side is based on the Farman-XVI (about equal with the French HF.20). This resulted in this one-off pusher trainer, fitted with a 80 hp Gnôme rotary engine. The instructor seat is right behind the seat of the pupil, somewhat higher placed so that he can see easily to the front. He could also guide the steering done by the pupil (or take it over).