In this study,we build a model for the rotors and propellers of 60 kg combined wing aircraft based on the strip and momentum theory,and circularly calculated the increment of the upcoming flow as an intermediate variable to precisely determine the propellers'performance.By comparing the obtained results with the experimental data,we corrected the model and calculated the mechanical performance of the propeller.Result showed that the model could evaluate the thrust and shaft power with a bias of less than 5% and less than 10%,respectively.Using this method,we drew the MAP curves representing the mechanical performance as the essential parameters in the power model and built a bridge between mechanical performance and controlling model.The results can support the study of mechanical modelling of combined wing aircraft.
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