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1. (WO2017154539) SHIP STERN STRUCTURE

Pub. No.:    WO/2017/154539    International Application No.:    PCT/JP2017/006112
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Feb 21 00:59:59 CET 2017
IPC: B63H 25/38
Applicants: TSUNEISHI SHIPBUILDING CO.,LTD.
常石造船株式会社
Inventors: SHI Jiangang
施 建剛
SHIBATA Kenichi
柴田 憲一
TAN Guiwei
譚 貴偉
UEHARA Masanari
上原 将成
Title: SHIP STERN STRUCTURE
Abstract:
Provided is a ship stern structure having a simple configuration which reduces wave-making resistance, the ship stern structure being effective in controlling the orientation of a traveling ship. This ship stern structure comprises: a propeller 1 which is disposed at the stern of a ship; a rudder 5 which is disposed at the rear of the propeller 1; a rudder horn 4 for mounting the rudder 5 to a hull 3; and fins 10 which are mounted on the rudder horn 4 in a manner protruding in the hull width direction. The vertical distance between the rotary shaft of the propeller 1 and the mounting position of the fins 10 is preferably 0.75 R or more, and the length of the fins 10 in the hull width direction is preferably less than 1.0 R, where R is the radius of rotation of the propeller 1.