rudderon

Meanings

1. A type of control surface, usually found on flying wing aircraft, consisting of two pairs of panels (one mounted near each wingtip on the wing's trailing edge), with one lying on top of the other sandwich-style; to roll the aircraft, both panels on one wing deflect downwards (increasing the lift of that wing) and both panels on the othe wing deflect upwards (decreasing the lift of that wing), while, to yaw the aircraft, the panels on one wing split apart from each other (the upper panel deflects upwards, and the lower panel deflects downwards), increasing the drag on that wing.

Etymology

Etymology tree Proto-Indo-European *h₁reh₁- Proto-Indo-European *h₁roh₁-(ye-)-tider. Proto-Germanic *rōaną Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Germanic *-þrą Proto-Germanic *rōþrą Proto-West Germanic *rōþr Old English rōþor Middle English rother English rudder Proto-Indo-European *h₂eǵ-? Proto-Indo-European *-os Proto-Indo-European *h₂eḱs-der. Proto-Italic *aksis Latin axis Latin *axla Latin āla Old French aile Middle French aisle French aile French -er- Proto-Indo-European *-ōder. Proto-Indo-European *-Hōder.? Latin -ō Frankishinflu. Old French -on Middle French -on French -on French -eron French aileronbor. English aileron blend English rudderon Blend of rudder + aileron.