On the morning of January 10, T/S Ushio-maru III departed from Hakodate and as soon as she changed course in the direction of Muroran after circled around Mt. Esan. The wind speed exceeded 15 m/sec immediately and the waves became high, so she turned back to anchorage off Hakodate Port.
The maximum tilt angle for rolling was about 15 degrees; In the II, it would have tilted 25 degrees, so we were able to feel that the vessel III was more weather resistant and less prone to seasickness.
On the following day, the 11th, she heaved her anchor at M.N. (midnight) and head to Funka Bay for the scheduled mooring system installation in the bay, oceanographic observation and sampling water, mud, and plankton and fish eggs and larvae.
