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File:Count de la Vaulx' balloon over the Mediterranean.png
Count Henry de La Vaulx' balloon with deviator trailing in the Mediterranean
File:Count de la Vaulx deviator in action.png
Closeup of de La Vaulx' deviator.

The deviator or Hervé deviator (invented by a Hervé suspected to be Henri-Alphonse-Désiré Hervé) is a ladder-shaped anchor and steering aid for airships traveling over water. By shortening one of the two ropes the water resistance on one side is increased, causing the ship to turn in the direction of that side.[1]

Enclosing categories Marine, Navigation, brakes, Anchor
Keywords Henri-Alphonse-Désiré Hervé
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