Morane-Saulnier AF

The Morane-Saulnier AF, also known as the Type AF and the MoS 28, was a French single-seat biplane fighter prototype of 1917 and the company's first single-seat fighter biplane, since Morane-Saulnier normally specialized in monoplanes. Its fuselage resembled that of the Type AI parasol monoplane and the earlier Type AC shoulder-wing monoplane, but it was designed with two wings. It first flew on 23 June 1917 and was tested by the Aviation Militaire in late 1917, powered by a 150 horsepower Gnome Monosoupape 9Nb rotary engine and armed with one Vickers machine gun. It was passed over for production in favour of the SPAD XIII, the Morane-Saulnier Type AI and the Nieuport 28. In November 1917 a floatplane version with a single central pontoon-like float was flight tested but not adopted.