GB364827A - Improvements in or relating to emergency flotation gear for aircraft - Google Patents

Abstract

364,827. Emergency flotation gear. YOUNGMAN, R. T., Walcot, Church Crookham, Hampshire. Dec. 31, 1930, No. 39344. [Classes 4 and 113 (i).] Emergency flotation gear for aircraft comprises a single collapsable and inflatable float 1 which is anchored to the aircraft 5 in such a manner that when in use the float is located in the plane of symmetry of the aircraft and above the centre of gravity. The float, which is of spherical, annular, or analogous shape, is normally stowed in a compartment in the fuselage behind the pilot or in the wing centre section, the compartment being closed by a door or cover releasable by the pilot or automatically on inflation of the float. The inflation means comprise flexible tubing 8 of such a length as never to become taut, connected to an air or gas bottle 9 or alternatively to a pump. Rigging cords 2 connected to the float converge to the point 3 where they are releasably connected to sling cords 4 anchored to the aircraft symmetrically about its plane of symmetry in such a manner that the aircraft is held in a submerged condition in a diving attitude as shown. The rigging and sling cords are sufficiently strong to enable the aircraft to be lifted out of the water by means of a slinging eye on the float. The float is made stable in the water when cut adrift and may be fitted with equatorial life lines. A spherical float may be stabilized by a depending fabric cone which becomes filled with water and an annular float may have a central canvas floor.