The first aircraft of cigar-shaped forms

The first aircraft of cigar-shaped form, with a length of 44 meters and a diameter of 12 m, was constructed in 1852 Henri Giffard. It was the first controllable blimp, named the Airship Giffard. He had a screw, the wheel and steam engine. Changing the volume of the gas in the balloon by use of a ballonet, it was possible to adjust the height of the flight of the airship, so he suggested the two shells — external (primary) and internal.

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