An offshore patrol helicopter carrier anchored at the Chuk Samet Deep Seaport. The king named the ship "Chakri Naruebet" meaning "Sovereign of the Chakri Dynasty". It was constructed in Spain in 1994. It is an 11-storey ship measuring 182 m in length and 30.5 m in width. It is equipped with modern weapons, as well as long-range surveillance radar. It serves as flagship of the fleet, controlling and commanding the fleet at sea, as well as an aircraft carrier and air defence mission. International visitors must write a letter to the Commander of the Royal Thai Fleet, Sattahip, Chonburi, 20180.