[1] The thinking was that most air forces would fly the faster monoplane but small countries might prefer the more economical biplane.

It had constant chord, rounded tips and significant dihedral and was braced from above with two parallel struts on each side to the upper fuselage longerons.

[1] The fuselage was a flat sided tubular steel structure, deep at the rear but sloping down to the nose from about mid-chord.

The gunner's seat, twin Lewis machine gun and ammunition were contained within a novel turret, a vertical axis cylinder which could be power rotated in any direction under lever control.

[3] The F.K.35 was powered by a 600 hp (444 kW) Bristol Pegasus VI nine cylinder radial engine driving a two blade propeller.