1916 - 1945

Foundations

The history of Dassault Aviation reaches back to the dawn of aviation at the beginning of the 20th century. It is naturally inseparable from the life of its founder, Marcel Bloch, who was fascinated by both aesthetics and innovation from his early childhood. It was Marcel Bloch, later known as Marcel Dassault, who forged the DNA that still shapes his eponymous company. His experiences during this initial period are the key to understanding his fundamental values and future success.

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Foundations
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An industrialist during
the Great War

Spad VII equipped with a Eclair propeller

Verdun, 1916. The first real air battle in history rages in the skies over Verdun. France’s Nieuport pursuit planes are equipped with an impressive new propeller that is simple, rugged, effective and even beautiful. It’s called the Éclair (“Lightning”), and it was designed by Marcel Bloch, barely 24 years old.

The following year, with some 40 propeller manufacturers in France turning out 253 different models, the government selected only the three best, including the Éclair, which would be used, for example, on the Spad VII flown by French ace Georges Guynemer. This commercial breakthrough marked the start of one of the most striking success stories in the international aviation industry.

French ace Georges Guynemer in front of a Spad VII fitted with an Éclair propeller.

During recreation period one day in the courtyard of the school, I saw an airplane go by for the first time. It was a Wilbur Wright plane owned by the count of lambert, and it was circling the Eiffel tower.

I had never seen an airplane, but right then I understood that aviation had entered my mind and my heart.

Marcel Dassault

Marcel Bloch, around 1910.

Marcel Bloch

Marcel Bloch was born on January 22, 1892 in Paris, and quickly became fascinated by the daring feats of the pioneering aviators. In 1913, he earned a degree in aeronautical engineering from the École supérieure d’aéronautique.

Called up for his military service, he was assigned to the aeronautics laboratory in Chalais-Meudon, near Paris.

Shortly after the start of World War I, Marcel Bloch and Henry Potez were chosen to oversee the manufacture of Caudron G-3 reconnaissance planes, with production duties split between several well-known manufacturers.

SEA IV, two-seater fighter, on the ground with Éclair propeller. © Dassault Aviation - DR

The SEA IV and its Éclair propeller chosen by the army

It was at this point that Bloch designed the new Éclair propeller, and had it manufactured by carpenters in Paris. His first experience as manufacturer familiarized him with the wide variety of production issues, and above all gave him vital data about a broad range of airplanes, since manufacturers sent him all the associated technical specifications.

At that point, Marcel Bloch decided to become an aircraft manufacturer himself, in association with his friends Henry Potez and Louis Coroller.

They founded the Société d’Études Aéronautiques (SEA) on July 1, 1917, offering their SEA IV twin-seat pursuit and reconnaissance airplane.

The French army ordered 1,000 of these planes in late 1917, but with the war ending just after production startup, only 115 were built. Marcel Bloch therefore shifted his focus to real estate and furniture manufacture while waiting for brighter days.

The SEA IV equips the 11ᵉ squadron.

The war we had won at such a high cost in human lives was regarded by everyone then as "the war to end all wars".

The government services responsible for airplane production informed us that, if we wished, we could make doors, windows or wheelbarrows, but it would be a long time before any new orders for aircraft were given.

And even if someday a government order were to be given, it would be for only a few airplanes, and it would go to the big companies with big factories and reserves of manpower, like Voisin, Breguet, Farman and others.

Marcel Dassault, The Talisman

Return to aviation

Video of the MB-81 sanitary single-engine plane.

France created a Ministry of Aviation in 1928, kicking off a policy of developing prototypes to modernize the French military fleet. Marcel Bloch, his enthusiasm rekindled by Lindbergh’s flight across the Atlantic in 1927, was ready to return to his first love, aviation.

Monsieur Bloch founded his own design office in 1929 and submitted a proposal to the ministry for the construction of a trimotor plane with all-metal construction – an innovative technique at the time – to carry the mail. This aircraft would not enter production, but the French army still needed a three-engine plane to reach the country’s colonies, so they ordered a modified version: the MB-120.

Plan of the MB-60 trimotor.

The main planes that followed included the single-engine MB-81, designed for the transport of wounded soldiers, and ordered in 1931; prototypes of light planes; and the twin-engine warplanes MB-200 (1933), MB-210 (1934) and MB-131 (1936).

Marcel Bloch also began the construction of airliners, including the twin-engine MB-220 (1936) and the four-engine MB-160 (1939), later the Languedoc, flown by Air France. In just a few short years he had become the country’s second leading aircraft manufacturer.

MB 60 three-engine postal prototype on the ground in front of a hangar © Dassault Aviation - DR

You were offering us a beautifully designed airplane, of all-metal construction, and you precisely and efficiently assessed all of its characteristics. You yourself determined, like I still do today, all aspects of its production, which seemed to me emblematic of an eminent manufacturer with a great future in aviation.

Albert Caquot

Chief Technical Officer at the French Ministry of Aviation in 1928, talking about the MB-60.

© Dassault Aviation - DR

Bloch’s success in the combat aircraft sector was especially striking. A total of 750 MB-151, MB-152 and MB-155 fighters were produced. His company also made a light bomber and a twin-engine ground attack plane, the MB-174 and MB-175, respectively. A total of 1,000 were ordered, but the rapid outcome of the war in France limited deliveries.

MB-174 plans. © Dassault Aviation - DR

An MB-174 in the hands of Captain Antoine de Saint-Exupéry

Built by SNCASO from November 1939 to May 1940, the MB-174s were assembled in Mérignac. After reinforcing their armament, the first available aircraft were delivered in March to GR II/33 and, on March 29, Captain de Saint-Exupéry carried out one of the first war missions on an MB-174. He would draw inspiration from it to write his famous book “War Pilot”.

MB-174 on the ground. © Dassault Aviation - DR

The production of these different models was distributed among several manufacturers, under license, to give them sufficient workload. The MB-200, MB-210 and MB-152 were exported. A total of about 1,800 Bloch civil and military aircraft were built before the Second World War.

The main Bloch aircraft

In just six years, from 1930 to 1935, Marcel Bloch became France's second-largest aircraft manufacturer. Thanks to his intense activity and inventiveness, he covered most areas of civil and military aviation. This duality enabled him to use innovative technical solutions from one aircraft to the next. Between 1930 and 1940, 1,800 Bloch aircraft were produced.

© Dassault Aviation - DR

MB-80

Built under a government contract, the MB-80 made its maiden flight in early summer 1932 at Villacoublay, piloted by Zacharie Heu. An all-metal low-wing monoplane, it could reach speeds of 190 km/h and altitudes of 6,400 metres, and was capable of taking off in 70 metres and landing in 95 metres. In autumn 1932, the MB-80 made 209 landings in a day and a half without the slightest problem.

This aircraft was designed to pick up the sick and wounded using small, makeshift airfields, which could even be found at high altitudes during military operations in mountainous country, as was the case in the Atlas mountains of Morocco.

© Dassault Aviation - DR

MB-200

In 1932, Marcel Bloch responded to the French night bomber programme. He presented the MB-200. Broadly speaking, it was the MB-120 three-engine transport, militarised and improved. More than 200 were produced.

The MB-200 enabled the Bloch company to win its first export contract. In 1935, Czechoslovakia bought the licence to manufacture the aircraft and fitted it with Czech engines. It produced 114 aircraft before the German annexation of 1938.

© Dassault Aviation - DR

MB-220

This aircraft made its first flight in 1936. It was a civilian extrapolation of the MB-210 bomber. Used on Air France's European routes, it was a very comfortable aircraft designed to carry sixteen passengers. With this aircraft, the company, already well established in the military sector, definitively established its activity in civil aviation.

© Dassault Aviation - DR

MB-152

The MB-152 is a solid aircraft, capable of withstanding a lot of damage and providing a very stable firing platform.

The GC II /1 fighter group organised a confrontation with Morane 406s:

« The climb and speed exercises were in favour of the Bloch. So what did we have to complain about? We didn't realise what a treasure we had. »

SH AA, G7/785, GC II /1 Fighter Group Log.

According to official figures, during the Battle of France in 1940, the MB-152s of the French air force scored 159 victories for 94 aircraft lost in combat.

discover other Marcel Bloch aircraft

Night and fog

Video of the MB-220 twin-engine transport plane.

As early as 1930, Marcel Bloch had begun to form an outstanding team of young engineers, wholly devoted to the charismatic patron.

Concerned about his workers’ wellbeing, Monsieur Bloch gave them a week of paid vacation starting in 1935. His “human resources” policy would always be ahead of that applied by his industry counterparts.

When the aviation industry was nationalized in 1936, Bloch’s factories became part of the new company, Société Nationale de Construction Aéronautique du Sud Ouest (SNCASO). He was named managing director of this company, a position he would hold until January 1940. At the same time, Bloch set up an independent design office to continue working on his own ideas.

© Service historique de la Défense, Vincennes

Boilermakers working on the MB-152.

Boilermakers building the MB-152. Text: Marcel Bloch understood that a modern factory should not produce like a 19th century factory. He believed in social ideas that were in line with his industrial realism. For him, the well-being of workers was a priority. In 1935, he was one of the first in France to grant workers a week's paid holiday.

© Service historique de la Défense, Vincennes

Boilermakers working on the MB-152.

Boilermakers building the MB-152. Text: Marcel Bloch understood that a modern factory should not produce like a 19th century factory. He believed in social ideas that were in line with his industrial realism. For him, the well-being of workers was a priority. In 1935, he was one of the first in France to grant workers a week's paid holiday.

Germaine de Vaucresson, his cousin, knew his workers: « They all thought highly of him. They said he was an intelligent and worthwhile boss, tough but fair, generous, who knew how to reward everyone's merits.»

© Dassault Aviation - DR

The MB-152 production line at the SNCASO plant in Châteauroux-Déols.

Production of the MB-152 was divided between the various SNCASO factories. It is likely that between 1938 and 1940, almost 700 MB-151 and MB-152 aircraft were produced and delivered to the French air force and navy, at an average rate of 25 aircraft per month.

© Dassault Aviation - DR

The facade of the Bloch factory in Saint-Cloud in the immediate post-war period.

Following the Popular Front victory in May 1936, Léon Blum's government wanted to control the manufacture of war materials for national defence. With his aircraft manufacturing company nationalised, Marcel Bloch was no longer allowed to mass-produce aircraft.

He decided to set up the société anonyme des avions Marcel Bloch, which engaged in other industrial activities, such as the manufacture of propellers and engines.

© Dassault Aviation - DR

The Marcel Bloch factory in Courbevoie in 1938.

The factory was bustling with activity, as noted by the aeronautical magazine "L’Air":

« Well supported by active, young people, Marcel Bloch has a factory that impresses visitors; they never expected to find such an active, buzzing industrial business behind the quiet façade » L'Air, No. 433, 15 September 1933.

© Dassault Aviation - DR

In 1945, Benno-Claude Vallières was decorated for his services with the British SAS commandos.

Many of the employees chosen by Marcel Bloch in the 1930s demonstrated their bravery during the Second World War, including Benno-Claude Vallières, future CEO, and Henri Déplante, future Technical General Manager, who served in the British Special Air Service (SAS) commandos, as well as Xavier d'Iribarne, future Head of Production and organiser of logistics for the 1st armoured division.

Video of the all-metal, float-mounted MB-480.
Marcel Bloch, deported to Buchenwald from August 1944 to April 1945.

In October 1940, Marcel Bloch was imprisoned by the Vichy government, and his goods were confiscated.

A fervent patriot who refused to work for the occupying force, he was deported to Buchenwald by the Nazis.

Although very ill, he managed to survive until the liberation of this concentration camp in April 1945, thanks to help from a clandestine communist organization.

Throughout this extremely trying period, Marcel Bloch, who was convinced the Allies would eventually win, never stopped designing his planes. He had a single goal in mind: to resume production after the war.

Imprisoned at fort Montluc in 1944, Marcel Bloch seemed as inapt as possible to stand up to this particularly harsh prison, where many people died.

But he was a reed with a backbone of steel, tough, flexible and of an exceptional caliber. […]

He was phlegmatic, impassive, calm, and throughout the day he would repeat: ‘When things get tough, be strong,’… and he was strong. That was his manner. He was impossible to perturb, and he had a logical optimism, because he really believed that the Germans would lose the war.

André Frossard writer and member of the French Academy.

1945 - 1975

The Magic Years

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