UNDERWATER OBSERVATION BOAT

摘要

PROBLEM TO BE SOLVED: To provide an underwater observation boat not damaging an underwater observation window even if it is landed and capable of maintaining a good visual field for a long period of time. SOLUTION: The underwater observation boat has the underwater observation window on at least a part of the ship bottom 11 of a hull 10. A leg 20 is provided on the ship bottom 11 such that the underwater observation window is spaced from the ground when it is landed. COPYRIGHT: (C)2006,JPO&NCIPI