In this study, a 30ft class high speed catamaran cruise boat is designed and resistance performances are investigated by model test at a circulating water tank. Design speed of the boat is 17knots(8.7m/s) and maximum speed is 20knots(10.3m/s) using 330ps twin engine. Each single bodies are designed unsymmetric planing hull considering high speed-length-ratio(Froude number) and wave interaction at inner part of the hull. Small size fins like chine are attached near free surface at each outside of the hull to separate wave along the hull side. The results show that the small chine plays a big role in separating the wave flowing along the hull. However, in the case of relatively heavy boat such as the developed hull, such a small power due to chine can not cause additional lift and cause resistance increase.

ABSTRACT
 1. 서 론
 2. 선형계획
 3. 성능평가 방법
 4. 모형시험
  4.1 시험조건
  4.2 시험결과
 5. 결 론
 References

• 정우철(Department of Naval Architecture & Ocean Engineering, Inha Technical College) | Uh-Cheul Jeong Corresponding Author
• 김성찬(Department of Naval Architecture & Ocean Engineering, Inha Technical College) | Sung-Chan Kim