Jean-Pierre Blanchard

French balloonist
Also known as: Jean-Pierre-François Blanchard
Quick Facts
In full:
Jean-Pierre-François Blanchard
Born:
July 4, 1753, Les Andelys, France
Died:
March 7, 1809, Paris (aged 55)

Jean-Pierre Blanchard (born July 4, 1753, Les Andelys, France—died March 7, 1809, Paris) was a French balloonist who, with the American physician John Jeffries, made the first aerial crossing of the English Channel. He was also the first to make balloon flights in England, North America, Germany, Belgium, and Poland.

During the 1770s Blanchard worked on the design of heavier-than-air flying machines, notably one based upon a theory of rowing in the air currents with oars and tiller. Following the demonstrations of hot-air-balloon flying by the Montgolfier brothers in Annonay, France, in 1783, Blanchard took up ballooning.

On March 2, 1784, in Paris, Blanchard made his first ascent. On January 7, 1785, he and Jeffries ascended over Dover, England. The two aviators were compelled to heave all cargo overboard except the package of the first international airmail, delivered successfully upon their safe landing in the Felmores Forest, France.

NASA's Reduced Gravity Program provides the unique weightless or zero-G environment of space flight for testing and training of human and hardware reactions. NASA used the turbojet KC-135A to run these parabolic flights from 1963 to 2004.
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Ever the showman, Blanchard tossed a dog equipped with an experimental parachute over the side of a balloon and later tried parachute jumping himself. He also unsuccessfully tried using sails to add maneuverability and facilitate propulsion in balloons.

After making a number of exhibition flights in Europe, Blanchard made the first balloon flight in North America, on January 9, 1793, when he ascended from the Washington Prison Yard in Philadelphia and landed in Gloucester county, New Jersey. This flight, observed by President George Washington, spurred interest in ballooning in the United States. Blanchard returned to Europe and, with his wife, Marie, who had also learned to fly balloons, performed many other exhibitions.

Blanchard suffered a heart attack on a flight over The Hague in February 1808 and fell more than 50 feet; he never recovered from the fall. His widow continued flying in balloons, but in 1819 she fell to her death when her hydrogen balloon was ignited during a fireworks display in Paris.

This article was most recently revised and updated by Encyclopaedia Britannica.
Quick Facts
Also called the:
Montgolfier brothers
Born:
Aug. 26, 1740, Annonay, France
Died:
June 26, 1810, Balaruc-les-Bains
Born:
Jan. 6, 1745, Annonay, France
Died:
Aug. 2, 1799, enroute from Lyon to Annonay

Joseph-Michel and Jacques-Étienne Montgolfier (respectively, born Aug. 26, 1740, Annonay, France—died June 26, 1810, Balaruc-les-Bains; born Jan. 6, 1745, Annonay, France—died Aug. 2, 1799, enroute from Lyon to Annonay) were French brothers who were pioneer developers of the hot-air balloon and who conducted the first untethered flights. Modifications and improvements of the basic Montgolfier design were incorporated in the construction of larger balloons that, in later years, opened the way to exploration of the upper atmosphere.

(Read Orville Wright’s 1929 biography of his brother, Wilbur.)

Joseph and Étienne were 2 of the 16 children of Pierre Montgolfier, whose prosperous paper factories in the small town of Vidalon, near Annonay, in southern France, ensured the financial support of their balloon experiments. While carrying on their father’s paper business, they maintained their interest in scientific experimentation.

British soldiers captured by the Germans marching up a hill, June 1940, Dunkirk, France. (World War II, prisoners of war)
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In 1782 they discovered that heated air, when collected inside a large lightweight paper or fabric bag, caused the bag to rise into the air. The Montgolfiers made the first public demonstration of this discovery on June 4, 1783, at the marketplace in Annonay. They filled their balloon with heated air by burning straw and wool under the opening at the bottom of the bag. The balloon rose into the air about 3,000 feet (1,000 metres), remained there some 10 minutes, and then settled to the ground more than a mile and a half from where it rose. The Montgolfiers traveled to Paris and then to Versailles, where they repeated the experiment with a larger balloon on Sept. 19, 1783, sending a sheep, a rooster, and a duck aloft as passengers. The balloon floated for about 8 minutes and landed safely about 2 miles (3.2 kilometres) from the launch site. On Nov. 21, 1783, the first manned untethered flight took place in a Montgolfier balloon with Pilatre de Rozier and François Laurent, marquis d’Arlandes, as passengers. The balloon sailed over Paris for 5.5 miles (9 kilometres) in about 25 minutes.

The two brothers were honoured by the French Académie des Sciences. They published books on aeronautics and continued their scientific careers. Joseph invented a calorimeter and the hydraulic ram, and Étienne developed a process for manufacturing vellum.

This article was most recently revised and updated by Encyclopaedia Britannica.