The Saunders-Roe (later British Hovercraft Corporation) SR.N6 hovercraft (also known as the Winchester class) was a larger version of the earlier SR.N5 series. It incorporated several features that resulted in it quickly becoming the most produced and successful hovercraft design in the world. Compared to the SR.N5, the SR.N6 Mk.1 was stretched in length, with over double the seating capacity.