A Performance Analysis Method of High Speed and Small Diameter Propeller

Recently, water-air drone has shown widespread applications in various fields, such as military and live entertainment. As a direct source of power, it is necessary to study and calculate the performances of water-air propeller. The underwater propeller has the maximum diameter limit and the air propeller has the minimum thrust limit. So, high speed and small diameter are the characteristics of water-air propeller. In this paper, the performance in air of a water-air propeller has been calculated using programs, which were based on the strip theory. The effect of rotate speed on thrust, torque and power-to-thrust ratio has been carefully investigated. Meanwhile, these results have been verified by physical experiments