| 摘要 |
PROBLEM TO BE SOLVED: To provide a sail having a sail grid structure with a grid structure capable of flexibly changing a sail configuration according to change of a purpose of use of a sailing ship.SOLUTION: In a sail 10 having a grid structure, an outer frame 14 is defined therein and a plurality of panel attaching frames having an internal space respectively are formed. The sail 10 is configured so that functional panels such as first photovoltaic power generation panels 22 and 24, a wind power turbine panel 26, first blowout panels 28 and 30 can be attached on the panel attaching frames respectively. |
