The invention relates to a fuel power individual drive large-scale
plant protection unmanned aerial vehicle, which consists of an
airframe, an undercarriage, avionic systems, power systems, a fuel
system and towed bird systems. The
airframe adopts a framework-type structure and comprises a girder, a center plate, arms, pull rods and a hood; the undercarriage is positioned at the
abdomen of the
airframe; each power
system is fixed on an engine base at the
tail end of each arm; the fuel
system is arranged at the center position of the airframe; a
fuel tank is inserted in the girder and is fixed on a lower center plate; a fuel
pipe passes through the inside of each arm to supply fuel to a corresponding engine; each avionic system comprises a flight control board, a GPS (
Global Positioning System), a
laser sensor, a
relay, a starting motor, a DC (
Direct Current)
brush electronic
tuner, an electric
spray nozzle and the like; each towed bird system consists of a
medicine chest, a water pump, a
water pipe and a
shower nozzle. According to a fuel power individual drive unmanned aerial vehicle scheme provided by the invention, one electric
fuel injection engine directly drives one
propeller, and no any
mechanical transmission mechanism exists between the electric
fuel injection engine and the
propeller, so that the bottlenecks of a load and endurance of an existing unmanned aerial vehicle are broken through, and an application range of the unmanned aerial vehicle is expanded.