FIELD: aviation.
SUBSTANCE: invention relates to aircraft engineering, particularly, to helicopters. Helicopter comprises emergency landing system, fuselage, bearing screw on shaft connected via reduction gear with gas turbine engine. Emergency landing system includes cylindrical casing located in lower part of fuselage, inside of which there is a fan, which contains working blades on hub, connected by second shaft with reduction gear. Outlet guide vanes are fixed on the casing under the fan. On side wall of casing there are inlet openings for air intake. Fan in flight creates up to 10 % of lifting force, and at break of rotor 90–99 %. Working blades of the fan and the guide vanes are made rotary. Damping gasket is installed between cylindrical casing and fuselage.
EFFECT: enabling safe landing at screw destruction.
4 cl, 4 dwg
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Authors
Dates
2019-08-22—Published
2018-11-21—Filed