Ama

For the town in Japan see Ama, Shimane

An Ama is an outrigging float on a trimaran resembling a small sealed kayak or canoe. There are many shapes of amas, the simplest being long slender equilateral triangles shapes, progressing to more rounded wedge-shaped designs. The most advanced amas are composed of highly curved surfaces which generate lift when driven forward through the water, much like an airplane wing.