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The Friedrichshafen N.I was a two-seat biplane equipped with a 260 hp (190 kW) Mercedes D.IVa engine, double-mainwheel tri-cycle landing gear and large relatively highly swept biplane wings. It flew in 1917, but flight testing revealed a number of deficiencies, the main one of which was the large length of the nose, which made it difficult for the pilot to get a look at landing, especially at night.
Gray, Peter; Thetford, Owen (1970). German Aircraft of the First World War (2nd ed.). London: Putnam. ISBN0-370-00103-6.
Herris, Jack (2016). Friedrichshafen Aircraft of WWI: A Centennial Perspective on Great War Airplanes. Great War Aviation Centennial Series. Vol. 21. n.p.: Aeronaut Books. ISBN978-1-935881-35-3.
Herris, Jack (2012). Nachtflugzeug: German N-Types of WWI. Great War Aviation Centennial Series. Vol. 3. n. p.: Aeronaut Books. ISBN978-1-935881-10-0.