Development of high-efficiency KIS propeller

A high-efficiency skewed propeller (KIS propeller) which is characterized by a new blade section has been developed by a theoretical method. Systematic model tests show that the efficiency of the KIS propeller is 2 percent higher and the fluctuating pressure of a KIS propeller skewed 30° to the hull is 30 percent less than that of a conventional propeller (MAU propeller). Furthermore, results of cavitation tests prove that the lower blade area ratio can be applied with KIS propeller maintaining excellent cavitation characteristics. To date, deliveries of 35 KIS propellers have been recorded.