Sébastienne Guyot
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Sébastienne Marie Henriette Guyot (26 April 1896 – 21 August 1941) was a French
engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...
who specialised in
aerodynamic Aerodynamics () is the study of the motion of atmosphere of Earth, air, particularly when affected by a solid object, such as an airplane wing. It involves topics covered in the field of fluid dynamics and its subfield of gas dynamics, and is an ...
flying. A top athlete, she participated in the 1928 Summer Olympics in Amsterdam in the
800 meters The 800 metres, or 800 meters ( US spelling), is a common track running event. It is the shortest commonly run middle-distance running event. The 800 metres is run over two laps of an outdoor (400-metre) track and has been an Olympic event sin ...
and was French Cross Country Champion in 1928. Arrested by the Nazis when returning from an attempt to rescue her brother from a prison camp in 1940, she died in 1941 in
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
as a result of her imprisonment.


Early life

Sébastienne Marie Henriette Guyot was born 26 April 1896 at Pont-‘l’Abbé in
Finistère Finistère (, ; ) is a Departments of France, department of France in the extreme west of Brittany. Its prefecture is Quimper and its largest city is Brest, France, Brest. In 2019, it had a population of 915,090.Brittany Brittany ( ) is a peninsula, historical country and cultural area in the north-west of modern France, covering the western part of what was known as Armorica in Roman Gaul. It became an Kingdom of Brittany, independent kingdom and then a Duch ...
. Her father worked as a mounted policeman, ultimately being promoted to the role of Adjutant-Chef. She had one elder brother George (1894-1982) who became a pilot in the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
and decorated with the
Légion d’Honneur The National Order of the Legion of Honour ( ), formerly the Imperial Order of the Legion of Honour (), is the highest and most prestigious French national order of merit, both military and Civil society, civil. Currently consisting of five cl ...
in 1917. Her two younger brothers were Roger (1901- 1980) and René (1903–1977).


Education

In the spring of 1917, Sébastienne Guyot was working as a teacher. Turning twenty-one meant she was now legally an adult and able to make her own decisions, financial or otherwise. She gave up teaching and in October 1917 enrolled at the Lycée Jules Ferry in
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
, which ran classes to help women to prepare for the 1918 competition for entry into Central School of Paris, which had just permitted women to join their classes (as long as they sat in the front row). She came fifty-seventh out of 425 successful candidates passing the examination to enter the Central School of Paris. She chose to study mechanics, which included electrical engineering. By the end of the first year only 262 engineering students remained, with only 243 actually graduating in 1921. She ranked 45th of 243 graduates.


Career in engineering

After graduation, Guyot moved into working in
aviation Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as h ...
. She may have been inspired by her older brother George’s experiences during the First World War, when he fought first as an aviation observer, got shot down and later trained and flew as a pilot, earning the
Légion d’Honneur The National Order of the Legion of Honour ( ), formerly the Imperial Order of the Legion of Honour (), is the highest and most prestigious French national order of merit, both military and Civil society, civil. Currently consisting of five cl ...
. Guyot initially worked in two small companies, the "Ateliers de construction de l'Ouest" and then at the "Établissements Lumière" company from c.1922 through to 1928. The Lumiere aeroplane company was set up by Louis de Monge, a Belgian engineer living in Paris, to design aircraft. Guyot worked on the company's small twin-engine aircraft, launched in 1924, although much of the company's work was to undertake aeronautical research projects for the French government. In 1929 Guyot moved to work as an aeronautical engineer at the "Hydravions Lioré & Olivier", a much larger company, which designed and manufactured seaplanes and military aircraft, including the LeO 45. She remained there until 1935, working on fuselages and hulls of several seaplanes, and in collaboration with designers, Paul Asantchéef and André Violleau, who thought highly of her. In 1932, Guyot learnt to fly and bought a second-hand light plane, a Farman 231 with lowered wings, two-seater tandem roadster, Renault 95 horsepower engine, maximum speed around 186km / h12. It was registered number F-AJZN and had a decal of two dogs on its side. Around 1932 Guyot started working on the engineering of rotary blades for rotor craft. A 1933 record of a
helicopter A helicopter is a type of rotorcraft in which Lift (force), lift and thrust are supplied by horizontally spinning Helicopter rotor, rotors. This allows the helicopter to VTOL, take off and land vertically, to hover (helicopter), hover, and ...
named "Loth-Guyot" survives in the Air Section of the Historical Defence Service at Vincennes. Between 1932 and 1939, Guyot took out six patents in conjunction with engineer and entrepreneur William Arthur Loth (1888-1957), concerned with improving the lift of the rotator blades. One involved the stabilisation of rotating lifting systems, another a swivelling screw propeller. In 1936, the
Arsenal de l'Aéronautique ''Arsenal de l'Aéronautique'' (commonly named Arsenal) was a national military aircraft manufacturer established by the French Government in 1936 at Villacoublay. In the years before World War II, it developed a range of technically advanced fi ...
(usually called the Arsenal), a national military aircraft manufacturer, was established by the French Government at Villacoublay. In the dossier compiled by her brothers in 1947, making the case for her Resistance Medal, Sébastienne Guyot was described as "Head of the Helicopter Service at the Arsenal de l'Aéronautique", although details of her role there remain sketchy. The Arsenal was moved to
Toulouse Toulouse (, ; ; ) is a city in southern France, the Prefectures in France, prefecture of the Haute-Garonne department and of the Occitania (administrative region), Occitania region. The city is on the banks of the Garonne, River Garonne, from ...
during the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. It was dissolved in the 1950s and its pre-war records have disappeared.


Sport

As well as her engineering and aeronautical career, Sébastienne Guyot was also a successful long-distance runner. In January 1927 she joined the Académie at the Val d´Or stadium, one of the few sports clubs which promoted women's sport in France at the time. She was French champion of female cross country running in 1928, and was selected to run the
800 metres The 800 metres, or 800 meters (American and British English spelling differences#-re.2C -er, US spelling), is a common track running event. It is the shortest commonly run middle-distance running event. The 800 metres is run over two laps of a ...
at the 1928
Olympic Games The modern Olympic Games (Olympics; ) are the world's preeminent international Olympic sports, sporting events. They feature summer and winter sports competitions in which thousands of athletes from around the world participate in a Multi-s ...
in
Amsterdam Amsterdam ( , ; ; ) is the capital of the Netherlands, capital and Municipalities of the Netherlands, largest city of the Kingdom of the Netherlands. It has a population of 933,680 in June 2024 within the city proper, 1,457,018 in the City Re ...
, continuing to compete until 1932.


Attempt to rescue brother

On 7 July 1940, Sébastienne Guyot learnt that her younger brother René had become a prisoner of war earlier that month. He was held at the
Mulsanne Mulsanne () is a commune in the Sarthe department in the region of Pays de la Loire in north-western France. Population Motor racing The Circuit de la Sarthe, which is used in the sports car endurance race 24 Hours of Le Mans, features the l ...
camp and Guyot decided to try to rescue him, leaving
Toulouse Toulouse (, ; ; ) is a city in southern France, the Prefectures in France, prefecture of the Haute-Garonne department and of the Occitania (administrative region), Occitania region. The city is on the banks of the Garonne, River Garonne, from ...
on 9 July. She somehow crossed the German army's lines without discovery, arriving at Mulsanne on 15 July and managed to get in touch with her brother. René explained that he had been appointed the "commandant du camp" the representative of all the other prisoners in dealing with the
Wehrmacht The ''Wehrmacht'' (, ) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the German Army (1935–1945), ''Heer'' (army), the ''Kriegsmarine'' (navy) and the ''Luftwaffe'' (air force). The designation "''Wehrmac ...
, and felt that he could not abandon his men as his escape could endanger them. Guyot had to agree with the logic of his argument and left to return to Toulouse. She was discovered by German troops and found to be in possession of a map with instructions for evading them as well as a compass (her family think she travelled in her Renault car). She was arrested on 19 July 1940, tried in a court martial on 5 August and sentenced to six months in jail. Despite the prison staff being French and visits from a chaplain, Guyot fell ill in prison and did not receive proper treatment. When her brother George arrived to pick her up at the end of her sentence in January 1941, he learned that she had just been hospitalised as an emergency. He discovered her in a skeletal state in the hospital, with gangrenous frostbitten hands. George rushed her to Paris where a surgeon saved her hand, but the disease progressed and she died in great pain at the Broussais Hospital on 22 August 1941.


Médaille de la Résistance and legacy

Sébastienne Guyot received the
Médaille de la Résistance The Resistance Medal (, ) was a decoration bestowed by the French Committee of National Liberation, based in the United Kingdom, during World War II. It was established by a decree of General Charles de Gaulle on 9 February 1943 "to recognize the ...
posthumously in March 1947. Her three brothers survived the war. Guyot is the only woman whose name is on the war memorial of the Ecole Centrale. Since 2010, an annual scholarship in her name has been awarded to five young Ecole Centrale students to fully fund their studies at the School. In 2015, one of the eight streets in the new university area of Moulon in
Gif-sur-Yvette Gif-sur-Yvette (, "Gif-on- Yvette") is a commune in southwestern Île-de-France, France. It is located in the Vallée de Chevreuse, from the centre of Paris (at Notre-Dame), in the Essonne department on the departmental border with Yvelin ...
, was named after Sébastienne Guyot. The area will accommodate
CentraleSupélec CentraleSupélec (, CS) is one of the most prestigious and selective grandes écoles in France and is a member of the graduate engineering school of Paris-Saclay University in Gif-sur-Yvette, France. It was established on 1 January 2015, as a ...
in 2017, following the merger of Centrale Paris and
Supélec École supérieure d'électricité (, ), commonly known as Supélec (), was a French graduate school of engineering. It was one of the most prestigious grande écoles in France in the field of electrical engineering, energy and information scien ...
.


References

{{DEFAULTSORT:Guyot, Sebastienne 1896 births 1941 deaths 20th-century French women engineers 20th-century French engineers French women engineers Aeronautical engineers École Centrale Paris alumni French female middle-distance runners Athletes (track and field) at the 1928 Summer Olympics Olympic athletes for France Sportspeople from Finistère People from Pont-l'Abbé 20th-century French sportswomen French civilians killed in World War II Recipients of the Resistance Medal