The Saunders-Roe SR.N6 (also known as the Winchester class) is a medium-sized hovercraft primarily designed for passenger service [REF].
Early on, the SR.N6 was outfitted with an improved skirt, featuring fingers and forward puff ports, which resulted in improved forward control and reduced skirt wear; fingers had not been present upon the initial version of the skirt used prior to 1966 [REF].