HELICOPTER EMERGENCY BALLONET SYSTEM Russian patent published in 2022 - IPC B64C25/56 B64D25/18 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering and can be used in systems for emergency splashdown of helicopter. Helicopter emergency ballonet system comprises inflatable shells (5) of ballonets divided into sections and connected to gas supply source by means of main lines (8), and parts of attachment to fuselage. Modules of front left (1) and right (3) ballonets are arranged under helicopter steps of crew cabin on left and right sides of helicopter. Modules of main left (2) and right (4) ballonets are arranged on the main shock-absorbing struts of the undercarriage on the left and right sides of the helicopter. Each module of front ballonet (1, 3) consists of inflatable shell (5) with safety valves (18–20), which is placed in container (9), gas filling system (6) with cylinder (21), installed under floor of crew cabin. Each module of main ballonet (2, 4) consists of inflatable shell (5) with safety valves (18–20), a gas filling system (6) with cylinder (21) installed in the upper part of container (13). Container (9) comprises power frame (35) with outer fiberglass jacket (36), which are fixed to helicopter fuselage. Inflatable shell (5) is fixed on load-bearing frame (35).

EFFECT: higher reliability and safety of application.

6 cl, 11 dwg