Deviator

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.

File:Deviator offering maximum resistance.png

File:Deviator offering minimum resistance.png

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.

Enclosing categories	Marine, Navigation, brakes, Anchor
Subcategories
Keywords	Henri-Alphonse-Désiré Hervé
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Publications referring to deviator

• Hervé, 1886, Sur les ascensions maritimes appliquées à la météorologie (Simple title: On maritime meteorological ascensions, Journal: L'Aéronaute)
• Hervé, 1886, Sur les ascensions maritimes appliquées à la météorologie (Simple title: On maritime meteorological ascensions, Journal: L'Aéronaute)
• Surcouf, 1902, L'aéronautique maritime (Simple title: Maritime aeronautics (balance, static stabilizers, hydraulic compensators, deflection, principles, lamellar paragliders, lamellar deflector, suspension and nacelle, slowing and stopping devices, control devices), Journal: Mém. C. R. Trav. Soc. Ing. Civ. France)