| 摘要 |
FIELD: transport. ^ SUBSTANCE: air, two-blade or multi-blade rotors are fitted in single-rotor, coaxial, lengthwise or combined (mixed) configuration of airframes of flying objects, either on exposed lengthwise surface or in open or closed recesses closed by flaps. Note that said rotors are equipped with folding and opening systems operated in flight, and driven by either mechanical or jet drive, or flying in autorotation conditions. Rotors are controlled by independently programmed onboard radio electronic system (autopilot), or remote control system. ^ EFFECT: higher reliability and accuracy of delivery, reduced time required for delivery. |
