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In page Aeronautics:

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Charles and the Robert brothers' next balloon, La Caroline, was a Charlière that followed Jean Baptiste Meusnier's proposals for an elongated dirigible balloon, and was notable for having an outer envelope with the gas contained in a second, inner ballonet. On 19 September 1784, it completed the first flight of over 100 kilometres (62 mi), between Paris and Beuvry, despite the man-powered propulsive devices proving useless.[citation needed]