PORTABLE UNMANNED MULTI-PURPOSE AIRCRAFT Russian patent published in 2017 - IPC B64C39/02 

FIELD: aviation.

SUBSTANCE: portable unmanned multipurpose aircraft includes a bearing frame, screw propellers, a battery pack, a route calculating device, suspensions for fastening the payload. The bearing frame of device is made of two plates arranged one above the other, which are connected by means of axes on which latch bars for fixing the barbells in the working position are placed between the plates, two symmetrical hinge bearings of the folding chassis and four hinges located between the hinge bearings in which the barbells ends are fixed. On the opposite sides of barbells screw propellers are fixed with folding blades. To the lower plate of the frame, two parallel bearing guides are fixed through the dampers. Semi-rigid connectors are interconnected by means of beadings to form a polygonal spatial bracing boom connected by means of barbells to the bearing frame.

EFFECT: weight reduction, reduction in assembly time, increased reliability.

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