FLEXIBLE SKIRTS FOR SURFACE-EFFECT MACHINES

摘要

A skirt for peripherally confining a fluid cushion for a surface-effect machine, comprising a fluidtight flexible sheet encircled by a plurality of transverse hoops made of a material less deformable in the peripheral direction of the skirt than that of the sheet, whereby the said hoops cooperate with the said sheet in such a manner that the height of the skirt automatically decreases when the pressure of the cushion increases.