Airfoil structure

摘要

An airfoil structure including an elongate hollow container which, in use provides an airfoil cross-section between the longer edge regions of the container. A space is provided for so stiffening the leading edge region, that when the structure is in use the end regions of the container are permitted to deform out of the plane of the remainder of the width of the container - while this remaining part of the container width is kept substantially undeformed.