The development of the AUV-Urashima

JAMSTEC started on the development project of AUV in 1998 fiscal year, and the first test machine AUV-EX1 which renamed Urashima has been developed in March 2000. Urashima has many excellent features. The cruising range is relatively long and working depth is very deep. It has a new inertia navigation system with ring laser gyros. The fuel cell system will be selected for its power device. From this June, the first test in the sea of Urashima and the fuel cell test on ground have started. This paper introduces the feature of Urashima, and shows an outline of these tests.