On December 14, 1782, the Montgolfier brothers—Joseph-Michel and Jacques-Étienne—set out on their first serious flight test of the lighter-than-air conveyance they had developed while researching and experimenting with the process in the department of Ardèche, France.
The two brothers had built a wooden box, measuring roughly 9 ft by 9 ft by 12 ft and covered in taffeta-like cloth—based on a previous design of Joseph’s—and set it aloft by burning wool and hay under the bottom of the box. But they promptly lost control of it, according to C.C. Gillispie, in The Montgolfier brothers and the invention of aviation 1783-1784. It drifted nearly a mile and a quarter away—a failure.
