Manned balloon altitude records

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Manned balloon altitude records:

  • 11,887 m (39,000 feet) September 1862, Coxwell and Glaisher, both lost consciousness during the ascent due to the low air pressure and cold temperature −11 °C (12 °F).
  • 2,700 m (9,000 feet) December 1783 Jacques Alexandre Charles and Marie-Noel Robert (France) made the first flight in a hydrogen balloon to about 610 m (2,000 feet). Then Charles ascended alone to the record altitude.

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