Single seat biplane fighter with cantilever wings and V-struts.
This plane looked very much like the triplane Dr.1. (had the same fusulage), although the wings were from a new design
The Fokker V.9. was the prototype of the Fokker V.12, Fokker V.16, Fokker V.14 and Fokker V.13, a series which culminated in the Fokker D.6.