Sail: piece of canvas that catches the wind to propel a boat.
Luff: the longest side of a triangular sail.
Batten: long, thin piece of wood that supports the sail.
Peak: angle of sail.
Tack: point of attachment of a sail closets to the bottom and into the wind.
Foot: edge of a sail.
Bolt rope: cord protecting the edges of a sail.
Peak: point of attachment of a sail closest to the top and into the wind.

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EN : Amphibian vehicle
FR : Véhicule amphibie
ES : Vehículo anfibio


An amphibious vehicle, is a vehicle or craft, that is a means of transport, viable on land as well as on water, just like an amphibian. This definition applies equally to any land and water transport, small or large, powered or unpowered, ranging from amphibious bicycles, ATVs, cars, buses, trucks, RVs, and military vehicles, all the way to the very largest hovercrafts. Classic landing craft are generally not considered amphibious vehicles, although they are part of amphibious assault. Nor are Ground effect vehicles, such as Ekranoplans.