One of the most difficult jumps which takes off from the forward outside edge and is landed on the back outside edge of the opposite foot. A single Axel consists of 1 1/2 revolutions, a double is 2 1/2 revolutions, and a triple is 3-1/2 revolutions. The jump is named for its inventor, Axel Paulsen. It is easily recognizable as it is the only jump that takes off from a forward position. [Source - www.usfigureskating.org]