A classic monoplane, this second machine with the name Bertrand had a fuselage of rounded triangular section, warping wings, no rudder pedals but a single control stick with a wheel mounted at the top.

   (Span: 8.6 m; length: 7.3 m; gross weight: 190 kg; 25-30 hp 2-cylinder Velox-Suere)
  
   Another, probably the third, Bertrand, was a Bleriot XI copy with a 2-cylinder opposed engine; its Bleriot-style undercarriage was damaged in December 1910. The Roman numeral III was painted on the rudder. Since Rene Bertrand had family connections in southern France, this design which appeared in Montpellier (southern France) was probably his.

   (Span: 13.3 m; length: 11.8 m; gross weight: 540 kg; 40 hp Labor-Picker)