Experimental study of static-thrust propeller for mini-vertical takeoff and landing (VTOL) aircraft

Systematic experiments about static-thrust propellers' hovering performance with different geometrical parameters for unmanned mini-vertical takeoff and landing (VTOL) aircraft were made to enhance the lifting ability for more payloads. A series of conclusions about geometrical parameters' influence on hovering performance for propellers with constant pitch were summarized based on the test data and propeller strip theory suitable for static-thrust condition.This paper provides the test data of these propellers.The results show that larger diameter can improve hovering performance obviously,and there exist optimal lower medium pitch value,solidity and planform,but the latter two factors don't influence hovering performance obviously.