SAIL ASSIST DEVICE

PROBLEM TO BE SOLVED: To provide a sail assist device for displaying assist information for precisely piloting a sailing ship without being influenced by the capacity of a crew. SOLUTION: A target mark 110 for indicating a target position is displayed in the upper end vicinity of a display image screen on the display image screen of the sail assist device. One's own ship mark 111 of indicating one's own ship position is displayed in the center in the width direction in the lower end vicinity of the display image screen. A layline 200 at present time set based on the wind axis 120 and a maximum rise angle θup is displayed by a straight line on the one's own mark 111 side with the target mark 110 as a starting point. Past laylines 201A and 201B are also displayed by a straight line with the layline 200 at the present time as a reference. COPYRIGHT: (C)2011,JPO&INPIT