In this study, a small wind turbine airfoil specialized for national wind condition was designed in order to develop the furling control type HAWT. And then a flow analysis was carried out based on the blade drawing which was designed to characterize of the developed airfoil. The result of the flow analysis showed that the torque on the 3 blades was 180.23N.m. This is equivalent to an output power of 5.66kw and an output efficiency of 0.44. Then we produced and constructed a 3㎾ - furling control type HAWT by getting the system unit design technology such as the specialized furling control device. By operating this turbine, we could get 3㎾ of the rated power at a wind speed of 10.5㎧ through the ability test. Cut-in wind speed was 2㎧, generator efficiency was 92% at the rated power output. Sound power level was 87.2㏈(A). Also we observed that the output power was limited to 10.5㎧ with furling system operation.
