HELICOPTER FUSELAGE (VERSIONS) Russian patent published in 2006 - IPC B64C1/06 B64C27/04 

FIELD: aviation; helicopter construction.

SUBSTANCE: proposed helicopter fuselage includes nose and central sections and tail boom interconnected by means of attachment frames; each of them includes framework made from interconnected spars, stringers, frames and skin, partition separating the nose section from central one. Cargo cabin in central section of fuselage is bounded by panels, load-bearing floor, ceiling and cargo hatch made at angle relative to cross-sectional plane of fuselage forming smooth outline of tail compartment in closed position. Pilot cabin with movable seats is located in nose section. Mounted before attachment frame in nose fuselage is additional frame forming wells for backs of movable seats together with partition and instrument compartment. Floor side of cargo hatch is shifted in way of tail boom. Extreme frame of tail compartment embracing the load-bearing floor of fuselage is connected with floor side of cargo hatch, thus forming panels of cargo cabin together with skin which is necessary for longitudinal centering of helicopter. Apertures for emergency hatch and/or window are additionally provided in panels between frame in front of cargo hatch. Emergency hatch is provided with window.

EFFECT: increased volume of fuselage cargo cabin; ease of helicopter control.

4 cl, 1 dwg