상반 회전 프로펠러의 단독 성능 연구

The open water performance of CRP(Contra-Rotating Propeller) is investigated experimentally in the present study. The CRP normally gives better efficiency than a single propeller by cancellation of each rotational energy. The parameter study according to the variation of the distance between two propellers and the speed of revolution of each propeller has been conducted to verify the optimum value. The self-propulsion tests are expected to be carried out to validate the performance of CRP in near future.