DFW B.I

The DFW B.I (factory designation MD 14), was one of the earliest German aircraft to see service during World War I, and one of the numerous "B-class" unarmed, two-seat observation biplanes of the German military in 1914, but with a distinctive appearance that easily separated it from any other aircraft of its class. Though a biplane, its wing planform was inspired by that of the earlier Rumpler Taube monoplane, or possibly one of Igo Etrich's own follow-ons to the Taube, the "Sperling" monoplane, which led to the DFW aircraft being named the Fliegende Banane ("Flying Banana") by its pilots. It was also one of the few single engined, "three-bay" interwing strut design biplanes (like the original design of the Albatros B.I) to see service in World War I.

The B.II was generally similar, but was intended principally as a trainer aircraft. Some of these machines were fitted with the more powerful Mercedes D.II engine.