later in 1911 the aircraft was modified to include another cockpit forward of the pilot for a passenger. the wingspan was increased and the modified aircraft was re-designated the flanders f.3. it flew successfully for a number of months until it was destroyed in a fatal accident on 13 may 1912 when mr. e.v.b fisher was piloting it with an american passenger mr. mason when it crashed at brooklands killing them both. in 1912 the war office ordered four monoplanes based on the f.3 and designated the flanders f.4.