The Curtiss Falcon biplane family included the O-1, O-11 and A-3 of the US Army and the naval F8C / OC /O2C. The Falcon Mailplane was normally a single-seater but is seen here being demonstrated to the Dutch military as a two-seater. Several Curtiss planes were demonstrated at Rotterdam on 8 July 1930 and this visit to Soesterberg likely took place in the same month. The Curtiss Hawk fighter was selling to the Netherlands East Indies army which felt that it was much more reliable than the Fokker biplanes, and the Falcon does look sturdier than the Fokker C.V 320, on the right. Photo from: Nederlands Instituut voor Militaire Historie

This photo was added on 30 July 2019, and has since been viewed 400 times.