HYBRID PROPULSION OF MULTI-COPTER TYPE UAVS, FEASIBILITY AND CURRENT STATE OF THE ART

A limiting factor in further development of the electrically driven multicopter type UAVs is their low flight endurance - up to 1 hour with a real payload. It depends, on the limited specific energy of the batteries that multicopters carry on board.One of the solutions to the problem is the use of an energy source with higher specific energy - gasoline. Through it, electricity is generated onboard, which feeds the drive motors and the payload. In theory and in practice, hybrid drives allow the flight endurance of multicopters to reach 4 hours.