Jean-François Pilâtre de Rozier () (30 March 1754 – 15 June 1785) was a French

chemistry Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and chemical compound, compounds made of atoms, molecules a ...

and

physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...

teacher, and one of the first pioneers of

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 ...

. He made the first manned free balloon flight with François Laurent d'Arlandes on 21 November 1783, in a

Montgolfier The Montgolfier brothers – Joseph-Michel Montgolfier (; 26 August 1740 – 26 June 1810) and Jacques-Étienne Montgolfier (; 6 January 1745 – 2 August 1799) – were aviation pioneers, balloonists and paper manufacturers from the Communes o ...

balloon. He later died when his balloon crashed near Wimereux in the

Pas-de-Calais The Pas-de-Calais (, ' strait of Calais'; ; ) is a department in northern France named after the French designation of the Strait of Dover, which it borders. It has the most communes of all the departments of France, with 890, and is the ...

during an attempt to fly across the

English Channel The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...

. He and his companion Pierre Romain thus became the first known fatalities in an air crash.

Early life

He was born in

Metz Metz ( , , , then ) is a city in northeast France located at the confluence of the Moselle (river), Moselle and the Seille (Moselle), Seille rivers. Metz is the Prefectures in France, prefecture of the Moselle (department), Moselle Departments ...

, the third son of Magdeleine Wilmard and Mathurin Pilastre, known as "de Rozier", a former soldier who became an innkeeper. His interests in the chemistry of drugs had been awakened in the military hospital of Metz, an important garrison town on the border of France. He made his way to

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 ...

at the age of 18, then taught physics and chemistry at the Academy in

Reims Reims ( ; ; also spelled Rheims in English) is the most populous city in the French Departments of France, department of Marne (department), Marne, and the List of communes in France with over 20,000 inhabitants, 12th most populous city in Fran ...

, which brought him to the attention of the Comte de Provence, brother of King

Louis XVI Louis XVI (Louis-Auguste; ; 23 August 1754 – 21 January 1793) was the last king of France before the fall of the monarchy during the French Revolution. The son of Louis, Dauphin of France (1729–1765), Louis, Dauphin of France (son and heir- ...

. He returned to Paris, where he was put in charge of Monsieur's '' cabinet'' of

natural history Natural history is a domain of inquiry involving organisms, including animals, fungi, and plants, in their natural environment, leaning more towards observational than experimental methods of study. A person who studies natural history is cal ...

and made a ''

valet de chambre ''Valet de chambre'' (), or ''varlet de chambre'', was a court appointment introduced in the late Middle Ages, common from the 14th century onwards. Royal households had many persons appointed at any time. While some valets simply waited on ...

'' to Monsieur's wife, Madame, which brought him his ennobled name, Pilâtre de Rozier. He opened his own museum in the Marais quarter of Paris on 11 December 1781, where he undertook experiments in physics, and provided demonstrations to nobles. He researched the new field of gases, and invented a

respirator A respirator is a device designed to protect the wearer from inhaling hazardous atmospheres including lead, lead fumes, vapors, gases and particulate matter such as dusts and airborne pathogens such as viruses. There are two main categories o ...

Flight pioneer

In June 1783, he witnessed the first public demonstration of a

balloon A balloon is a flexible membrane bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. For special purposes, balloons can be filled with smoke, liquid water, granular media (e.g. sand, flour or rice), ...

by the Montgolfier brothers. On 19 September, he assisted with the untethered flight of a sheep, a cockerel, and a duck from the front courtyard of the

Palace of Versailles The Palace of Versailles ( ; ) is a former royal residence commissioned by King Louis XIV located in Versailles, Yvelines, Versailles, about west of Paris, in the Yvelines, Yvelines Department of Île-de-France, Île-de-France region in Franc ...

. French King

decided that the first manned flight would contain two condemned criminals, but de Rozier enlisted the help of the Duchess de Polignac to support his view that the honour of becoming first balloonists should belong to someone of higher status, and the

Marquis d'Arlandes A marquess (; ) is a nobleman of high hereditary rank in various European peerages and in those of some of their former colonies. The German-language equivalent is Markgraf (margrave). A woman with the rank of a marquess or the wife (or wido ...

agreed to accompany him. The king was persuaded to permit d'Arlandes and de Rozier to become the first pilots. After several

tethered A tether is a cord, fixture, or flexible attachment that characteristically anchors something movable to something fixed; it also may be used to connect two movable objects, such as an item being towed by its tow. Applications for tethers incl ...

tests to gain some experience of controlling the balloon, de Rozier and d'Arlandes made their first untethered flight in a Montgolfier hot air balloon on 21 November 1783, taking off at around 2 pm from the garden of the

Château de la Muette The Château de la Muette () is a château located on the edge of the Bois de Boulogne in Paris, France, near the Porte de la Muette. It is the OECD's headquarters. Three châteaux have been located on the site since a hunting lodge was transfo ...

in the

Bois de Boulogne The Bois de Boulogne (, "Boulogne woodland") is a large public park that is the western half of the 16th arrondissement of Paris, near the suburb of Boulogne-Billancourt and Neuilly-sur-Seine. The land was ceded to the city of Paris by the Em ...

, in the presence of the king. Their 25-minute flight travelled slowly about 5½ miles (some 9 km) to the southeast, attaining an altitude of 3,000 feet, before returning to the ground at the Butte-aux-Cailles, then on the outskirts of Paris. Along with Joseph Montgolfier, he was one of six passengers on a second flight on 19 January 1784, with a huge Montgolfier balloon ''Le Flesselles'' launched from

Lyon Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...

. Four French nobles paid for the trip, including a prince. Several difficulties had to be overcome. The wallpaper used to cover the balloon's envelope became wet because of extreme weather conditions. The top of the balloon was made of sheep- or buckskin. The air was heated by wood in an iron stove: to start, the straw was set on fire with

brandy Brandy is a liquor produced by distilling wine. Brandy generally contains 35–60% alcohol by volume (70–120 US proof) and is typically consumed as an after-dinner digestif. Some brandies are aged in wooden casks. Others are coloured ...

. (In other tests, charcoal or potatoes were used). The balloon had a volume around 23,000 m³, over 10 times that of the first flight, but it only flew a short distance. The spectators kneeled down when the balloon came down too quickly. That evening, the aeronauts were celebrated after listening to

Gluck Christoph Willibald ( Ritter von) Gluck (; ; 2 July 1714 – 15 November 1787) was a composer of Italian and French opera in the early classical period. Born in the Upper Palatinate and raised in Bohemia, both part of the Holy Roman Empire at ...

's opera,'' Iphigénie en Tauride''. Rozier took part in a further flight on 23 June 1784, in a modified version of the Montgolfiers' first balloon christened ''La Marie-Antoinette'' after the queen, which took off in front of the King of France and King Gustav III of Sweden. Together with

Joseph Proust Joseph Louis Proust (26 September 1754 – 5 July 1826) was a French people, French chemist. He was best known for his discovery of the law of definite proportions in 1797, stating that chemical compounds always combine in constant proportions. ...

, the balloon flew north at an altitude about 3,000 metres, above the clouds. They travelled 52 km in 45 minutes before cold and turbulence forced them to descend past Luzarches, between

Coye Coye is both a given name and a surname. Notable people with the given name include: *Coye Dunn (1916–2000), American football player *Coye Francies (born 1986), American football player Notable people with the surname include: *Jean-Baptiste Co ...

and Orry-la-Ville, near the Chantilly forest. They set records for speed, altitude, and distance travelled.

Final flight

De Rozier's next plan was an attempt to cross the English Channel from France to England. A Montgolfier balloon would not be up to the task, requiring large stocks of fuel for the hot air, so his balloon, the

Rozière balloon A Rozière balloon (or simply Rozière) is a type of hybrid balloon that has separate chambers for a non-heated lifting gas (such as hydrogen or helium) as well as for a heated lifting gas (as used in a hot air balloon or Montgolfière). The de ...

, was a combination of a

hydrogen Hydrogen is a chemical element; it has chemical symbol, symbol H and atomic number 1. It is the lightest and abundance of the chemical elements, most abundant chemical element in the universe, constituting about 75% of all baryon, normal matter ...

and

hot air balloon A hot air balloon is a lighter-than-air aircraft consisting of a bag, called an envelope, which contains heated air. Suspended beneath is a gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule), which carri ...

. It was prepared in the autumn of 1784, but the attempt was not launched until after another Frenchman,

Jean-Pierre Blanchard Jean-Pierre rançoisBlanchard (; 4 July 1753 – 7 March 1809) was a French inventor, best known as a pioneer of gas balloon flight, who distinguished himself in the conquest of the air in a balloon. Notable for his successful hydrogen balloo ...

, and his American companion, Dr.

John Jeffries John Jeffries (5 February 1744 – 16 September 1819 using Old Style Dating, 5 February 1745 – 16 September 1819 using New Style) was an American physician, scientist, and military surgeon with the British Army in Nova Scotia and New York du ...

, flew across the channel in a hydrogen gas balloon from England to France on 7 January 1785. Despite several attempts, De Rozier and his companion Pierre Romain were not able to set off from

Boulogne-sur-Mer Boulogne-sur-Mer (; ; ; or ''Bononia''), often called just Boulogne (, ), is a coastal city in Hauts-de-France, Northern France. It is a Subprefectures in France, sub-prefecture of the Departments of France, department of Pas-de-Calais. Boul ...

until 15 June 1785. At the take off, a nobleman tried to climb in the balloon with them, but Rozier persuaded him not to, saying it was too dangerous. After making some progress, a change of wind direction pushed them back over land some 5 km from their starting point. According to contemporary accounts, the balloon caught fire in midair before suddenly deflating and crashing near Wimereux in the

, from an estimated height of 450 m (1,500 ft). Both occupants were killed. Eight days later, his former fiancée died, possibly having committed suicide. A commemorative obelisk was later erected at the site of the crash. The King had a medal struck and gave his family a pension. The modern hybrid gas and hot air balloon is named the Rozière balloon after his pioneering design.

References

* Barthélemy Faujas de Saint-Fond (1783, 1784) Description des expériences de la machine aérostatique de MM. Montgolfier, &c. *

Simon Schama Sir Simon Michael Schama ( ; born 13 February 1945) is an English historian and television presenter. He specialises in art history, Dutch history, Jewish history, and French history. He is a professor of history and art history at Columbia Uni ...

(1987) '' Citizens: A Chronicle of the French Revolution'', pp. 123–131.

External links

*
A Short Course of Ballooning History
*https://web.archive.org/web/20070927233351/http://clg-pilatre-de-rozier.scola.ac-paris.fr/PDRBio.htm {{DEFAULTSORT:Pilatre de Rozier, Jean-Francois 1754 births 1785 deaths People from Metz French balloonists Aviators killed in aviation accidents or incidents in France Aviation history of France Flight altitude record holders Balloon flight record holders French aviation record holders History of ballooning Inventors killed by their own invention

Early life

Flight pioneer

Final flight

See also

References

Further reading

External links