Vertical take-off and landing aircraft - VTOL. The device has the advantages of both aircraft and multi-rotor systems - a large radius and flight time, along with vertical take-off, landing, the ability to hang at a given point...
up to 2 hours
up to 100 kilometers
up to 3000 meters
Multi-rotor apparatus, which happens in stand-alone or "tethered" modifications. It can be used as a signal transponder, high-altitude surveillance camera, cargo carrier...
220 volt network