LIFE-SAVING APPLIANCE ON EXTERNAL SUSPENSION OF HELICOPTER Russian patent published in 2015 - IPC B64D1/22 

FIELD: aviation.

SUBSTANCE: live-saving appliance on an external suspension of a helicopter includes an enclosing structure in the form of a bottom and a side wall made with a possibility of being folded in a vertical direction under action of a gravity force at its being supported from below and unfolded in the same direction at its being suspended with its upper part. Slings attach the upper part of the side wall to the external suspension of the helicopter and a supporting frame provided with a protective cover plate and fixed at the bottom. The bottom has a round shape, and the side wall is made in the form of bellows enveloping the bottom and tightly fixed with an inner diameter of one of its corrugations along outer diameter of the round bottom with formation of an upper chamber for arrangement of objects being rescued. A lower damping chamber is filled with compressed air. A valve with a controlled throttle is installed in the bellows.

EFFECT: increasing safety by damping of the bottom at landing and softening of side impacts with projecting parts of corrugations of the side wall.

3 dwg