STAND FOR ELECTRIC MEASUREMENT OF SMALL PROPELLER POWER UNIT PERFORMANCE IN WIND TUNNEL

The paper describes the design process of the low cost stand for measurement of small power units consisting of an electric motor and propeller. The design is based on the characteristics of the propeller, qualified estimate of the thrust and torque, electric method of the force measurements and commercially available components. The design is verified by the measurements in a wind tunnel on a typical model propeller and demonstrates that the employed design is suitable for the building of the cheap measuring stand for measurement of model propellers.