A hybrid thrusting system for increasing the endurance time of multirotor unmanned aerial vehicles

One of the most significant disadvantages electric multirotor unmanned aerial vehicles is their short flight time compared to fuel-powered vehicles. This mainly due low energy density batteries. Fuel has much more when Electric-powered motors in cannot be replaced with fuel-based engines because stability and control rely on high response rates motors. possible solutions overcome this problem endurance times by using hybrid thrusting systems that combine advantages both fuel electrical propulsion systems, where maneuverability long could achieved. In work, power for are studied. Targeted consist combustion engines, motors, sources. Then a system-based quadrotor vehicle model developed. The article presents altitude attitude developed vehicle. presented quadcopter comprises four one engine. engine used work 4.07 cc internal targeting 2–3 kg up 5 maximum takeoff weight. achieved 139% improvement traditional electric-based also reports other time-related issues such as optimal mass battery size ratio maximize