Drag-reducing bow shape with valve attachment and ship with drag-reducing bow shape

摘要

PROBLEM TO BE SOLVED: To reduce resistance of a bow valve during traveling in a ballast state of a craft comprising the bow valve.SOLUTION: In a bow shape, a bow part 10 of a craft has a bow valve 20. Wave-making induction means (fin) 30 for inducing a wave running upon a top surface 20a of the bow valve 20 during traveling in a ballast state of the craft, which protrudes in the lateral direction of the bow valve 20, is provided as a valve appendage provided in the bow valve 20.SELECTED DRAWING: Figure 1