Indonesia Conference Directory

The windmill tail that is widely used is a single tail that has a performance of a large zero offset. This study is to get a windmill tail pattern with a fast response and good direction stability. The aim of this study is to obtain a windmill tail pattern with the most stable direction stability under load conditions and changing wind direction by comparing the stability of several alternative windmill tail patterns. The process of data collection is done by comparing the performance of 3 types of windmills: single tail, semi-differential tail, and differential tail. The variables are speed of wind direction, speed of change of wind direction, differential angle of zero offset error, speed of change of direction, and torque produced. The material obtained from the test results was transcribed and analyzed. The results of the analysis are used to design windmill tail prototypes. From the analysis results show that the swing torque at the differential windmill tail is proportional to the sinusoidal swing angle, the differential angle gives the effect of the torque scale in a cosine manner. Whereas on a single pinwheel produces torque proportional to the sine squared with respect to the swing angle. The differential tail has performance with better speed and stability, but produces vertical vibrations so it is preferable to use a semi-differential pinwheel with a differential angular size tuned in the system.