Société des Avions Marcel Bloch

A key early order for Bloch was issued by the French engineer Albert Caquot, who sought a tri-engined aircraft suitable for postal services.

In response to rising demand for the company's produced, Marcel Bloch restructured the business, establishing separate design and manufacturing departments, while additional premises in the form of a garage in Boulogne were also arranged.

[1] By 1934, Marcel Bloch recognised that France's aviation industry was approaching a manufacturing crisis, having anticipating shortcomings in production capacity and capabilities.

[1] The 1930s was a time of considerable social upheaval in France; seeking positive relations with influential trade unions, Bloch engaged directly with their representatives, leading to numerous additional benefits being granted to the company's employees, such as a week's paid leave from 1935.

On 17 July 1936, the French government issued a new law that nationalised the nation's armament industry; this development heavily impacted for private aircraft companies as many were forcibly acquired and merged.

Both Bloch and Potez were active in efforts to expand manufacturing capacity, leading to purchasing of land in Saint-Cloud (the western suburbs of Paris) for the construction of a new factory in 1938.

[1] Following the outbreak of the Second World War during early September 1939, France's aeronautics manufacturing efforts reached a frantic pace, trying to satisfy the rapid order of thousands of airplanes, many of which had been placed too late to be fulfilled prior to the start of serious fighting in Western Europe.

[1] During the early months of the conflict, commonly referred to as Phoney War, Bloch accelerated production while endeavouring to achieve ever-greater performance from a series of rushed prototypes.