As the needs for exploration for and development of seabed resources grew in recent years, the sites for such projects have been moving to deeper and deeper waters. As the result, anchors have increasingly lost their usefulness as a means of holding ships in position, and instead, there has been a growing demand for drilling rigs and other structures, etc., equipped with automatic position-keeping devices.
Meanwhile, Mitsui Engineering & Shipbuilding Company has long been making active efforts in the ocean development field, at the same time energetically tackling the ocean electronics field, as a link in its overall ocean-resources development efforts. Such efforts have led to the successful development and production of its own computerized system for dynamic ship-positioning.
