A series of model tests carried out at the CWC of WJFEL for the purpose of prediction of resistance for the performance and improvement of resistance by attaching appendage for the ship of 50 knots class planing hull. The resistance performance evaluation has been carried out for the bare hull and for the appendage hull with two different depth of vertical type wedges. In the bare model test, trim and sinkage is calculated for the planing hull and the resistance is calculated. For minimizing the resistance, wedge appendage is attached and tested. Analysis and tests shows that for a 12.5mm wedge, resistance is minimum and overall power tallied to 5636ps.

TPI는 고속 활주선의 소음, 진동, 트림 및 핏칭운동을 감소시킨 것으로 실선 시운전에서 증명되었다. 또한 모형시험에서 저항성능도 미소하게나마 개선시킨 것으로 입증되었다