On what specific date did Jean-François Pilâtre de Rozier conduct the first untethered flight in a Montgolfier balloon?
Answer
November 21, 1783
The culmination of the foundational experiments arrived with the transfer to human conveyance. Following the successful animal flight, the series of tests concluded with the first untethered flight carrying a human pilot. This definitive manned flight, which moved beyond tethered demonstrations, occurred on November 21, 1783, with Jean-François Pilâtre de Rozier serving as the aeronaut. This event marked the validation of the entire engineering effort, transitioning the project from theoretical proof of concept to verifiable human aviation.
Related Questions
What did the Montgolfiers initially hypothesize was the active lifting agent based on early smoke containment tests?Which material reportedly offered better containment than paper for a given weight during larger, significant experiments?What specific substance was used by the brothers to join the sheets of paper together in the construction of the envelope?During the critical public unmanned flight in Annonay in June 1783, what weight capacity did the large bag successfully demonstrate?Which three living creatures were included as passengers during the September 1783 tethered biological experiment overseen by the Académie des Sciences?What prevailing, yet ultimately incorrect, scientific concepts did the brothers initially try to align their smoke observations with?On what specific date did Jean-François Pilâtre de Rozier conduct the first untethered flight in a Montgolfier balloon?What combination of materials was famously used when constructing one of the Montgolfiers' larger balloons for structural integrity?What concept did the Montgolfiers eventually recognize as the true agent of lift, superseding their initial focus on visible smoke?What was the primary experimental focus during the final, crucial phase involving the manned flight on November 21, 1783?