Powered by three 300hp Lorraine 9 Na “Algol” engines, the prototype flew in April 1932, with Zacharie Heu at the controls.
In response to a 1932 programme for three-engine aircraft for colonial service, Marcel Bloch proposed an extrapolation of the MB 60, the MB 70. Powered by three 300hp Lorraine 9 Na “Algol” engines, the prototype flew in April 1932, with Zacharie Heu at the controls.
In September of the same year, the aircraft received a rear dorsal turret and became the MB 71. Following a change of thinking on the part of the authorities, the colonial programme was cancelled and none of the aircraft proposed went into series production. The MB 70 set the stage for the subsequent MB 120 three-engine colonial transport aircraft.
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