French inventor brothers who achieved the first manned hot-air balloon flight in 1783. Their invention revolutionized the concept of aerial travel and paved the way for aeronautics.
Montgolfier (brothers)
Joseph-Michel Montgolfier and Jacques-Étienne Montgolfier
8 min read
Frequently asked questions
Key Facts
- 1783: First flight of an unmanned hot-air balloon at Annonay (June 1783)
- 1783: First manned hot-air balloon flight with Pilâtre de Rozier and the Marquis d'Arlandes (November 21, 1783)
- 1783: Demonstration before Louis XVI at Versailles with animals on board (sheep, rooster, duck)
- The invention grew out of observations on smoke and hot gases at their family paper mill
- Étienne Montgolfier was elected to the Academy of Sciences in 1783
Works & Achievements
The first public demonstration of a hot-air balloon, before the elected members of the États du Vivarais. The 800-cubic-metre balloon rose to nearly 1,000 metres and travelled two kilometres, marking the official birth of aeronautics.
The first test flight carrying live passengers, performed before the royal court. This milestone confirmed that living creatures could survive travelling at altitude, and convinced Louis XVI to authorize trials with human passengers.
Aboard a 2,000-cubic-metre balloon, Pilâtre de Rozier and the Marquis d'Arlandes made the first human aerial journey, flying over Paris for twenty-five minutes and covering roughly nine kilometres.
Joseph-Michel, an inventor to the last, designed a machine that improved the continuous manufacture of paper. This invention illustrates the breadth of his inventive genius, reaching far beyond aeronautics alone.
Joseph-Michel developed the hydraulic ram, a pump that uses the energy of a flowing stream to raise a portion of that water to a greater height. Still in use today in some parts of the world, this device stands as a testament to the brothers' mechanical creativity.
Anecdotes
On September 19, 1783, the Montgolfier brothers launched their balloon before King Louis XVI and the court of Versailles with three unusual passengers: a sheep named Montauciel (“climb-to-the-sky”), a duck, and a rooster. The flight lasted about eight minutes and covered three kilometers. All the animals landed safely, and the experiment proved that living creatures could survive at altitude.
Joseph-Michel is said to have conceived the idea for the balloon while watching shirts billow above a fire in a fireplace. In November 1782, he fashioned a small silk bag and held it over a flame: the bag rose toward the ceiling. This seemingly unremarkable observation was the starting point of a revolution in human history.
During the first human flight on November 21, 1783, the physicist Pilâtre de Rozier and the Marquis d'Arlandes flew over Paris for twenty-five minutes aboard the hot air balloon. From the ground, Benjamin Franklin, then the United States Ambassador to Paris, watched the scene. A bystander asked him what use it could possibly be: he is said to have replied, “What good is a newborn baby?”
The Montgolfier brothers came from a prosperous family of paper makers from Annonay, in the Ardèche. It was precisely their mastery of paper that allowed them to craft the first balloon envelopes, made of canvas coated with paper. Their father ran a major royal paper mill, which gave them access to the materials and resources needed for their experiments.
During the first public demonstration in Annonay on June 4, 1783, the balloon rose to about 1,000 meters in altitude and traveled nearly two kilometers before landing. The spectators, initially incredulous, watched open-mouthed at what they would never have believed possible. The Royal Academy of Sciences was immediately informed, and Paris became captivated by this extraordinary invention.
Primary Sources
On 4 June 1783, the Montgolfier brothers conducted, before a large gathering and in the open air, an experiment with an aerostatic machine. This machine, spheroid in shape, measured 35 feet in diameter; it is estimated to have risen to a height of 1,000 toises.
The machine rose majestically, and after floating for a few moments in the air, it disappeared behind the neighbouring rooftops. The spectators, seized with astonishment and admiration, could scarcely believe their eyes.
The Montgolfier brothers have discovered the art of filling globes of canvas or paper with smoke, and of causing them to rise into the atmosphere. This invention opens a new era in the history of the physical sciences.
M. de Rozier and the Marquis d'Arlandes crossed Paris from the Château de la Muette to the Butte-aux-Cailles, in an aerial journey of twenty-five minutes, without the slightest mishap. The machine reached a height of approximately 900 metres.
Key Places
Birthplace of both brothers and cradle of the hot-air balloon's invention. It was here that the first public demonstration took place on **4 June 1783**, before the members of the États particuliers of Vivarais.
Site of the royal demonstration on **19 September 1783**, where the balloon rose before **Louis XVI**, **Marie Antoinette**, and a crowd of courtiers, carrying aboard the sheep Montauciel, a duck, and a rooster.
Departure point of the first human flight in history, on **21 November 1783**. The hot-air balloon lifted off from this royal park and crossed Paris over twenty-five minutes, landing near the Butte-aux-Cailles.
The Montgolfier family's paper manufactory, one of the most important in France during the 18th century. It was in this workshop that the brothers gained access to the materials and infrastructure that made the design of the first balloons possible.
Liens externes & ressources
Références
Œuvres
Premier vol public non habité à Annonay
4 juin 1783
Vol avec des animaux à Versailles
19 septembre 1783
Premier vol humain de l'histoire
21 novembre 1783
Réformette — machine à papier continue
vers 1800
Bélier hydraulique (co-invention)
1796
