Test flight planning method for verifying maximum endurance index of piston power unmanned aerial vehicle

The invention discloses a test flight planning method for verifying the maximum endurance index of a piston power unmanned aerial vehicle, and the method comprises the steps: calculating the theoretical fuel consumption of the flight endurance of a test flight plan according to the maximum refueling amount of the unmanned aerial vehicle, the backup fuel amount, the maximum endurance index of the unmanned aerial vehicle, and the flight endurance of the test flight plan; calculating a take-off refueling amount according to the maximum refueling amount of the unmanned aerial vehicle, the backup fuel amount and the theoretical fuel consumption of the flight time of the test flight plan; according to the takeoff refueling amount and the in-vehicle fuel amount released after the unmanned aerial vehicle lands, the oil consumption of actual flight of the unmanned aerial vehicle is obtained; and according to the oil consumption of the actual flight of the unmanned aerial vehicle and the theoretical oil consumption of