The Bloch MB.150 to MB.157 were a French low-wing monoplane fighter aircraft developed and produced by Société des Avions Marcel Bloch.
It featured all-metal construction, complete with a retractable undercarriage and a fully enclosed cockpit.
Redesigns of the MB.150 design led to the improved MB.151 and MB.152 which entered squadron service with the Armée de l’Air.
By the outbreak of the Second World War, around 120 aircraft had been delivered to the Armée de l’Air but most were not sufficiently equipped to be considered operational.
An improved MB.155 had greater range.
Ordered into production in 1940, only ten aircraft had been completed by the Fall of France.
The MB.157, a further improved model with a heavier and more powerful engine, was completed during the Vichy era.
Though it demonstrated promising performance, it did not enter production.
Variants
MB.150
Single MB.150.01 prototype powered by a single Gnome-Rhône 14N-07
MB.151
MB.151.01 prototype and MB.151.C1 initial production versions powered by 920hp Gnome-Rhône 14N-35 engines
MB.152
MB.152.01 prototype and MB.152.C1 up-rated production versions produced in parallel with 151.C1, powered by 1,050hp Gnome-Rhône 14N-25 engines.
MB.153
Single MB.153.01 prototype with Pratt & Whitney R-1830 Twin Wasp engine
MB.154
Proposed version with Wright R-1820 Cyclone engine.
MB.155
MB.155.01 prototype converted from a MB.152 and MB.155.C1, production versions powered by Gnome-Rhône 14N-49 engines.
MB.156
Proposed version with Gnome-Rhône 14R engine.
MB.157
Single prototype of advanced version, converted from the MB.152 and equipped with a 1,590hp Gnome-Rhône 14R-4 engine.
