Vision, a unique VLCC built by Korea's Hyundai Heavy Industries Co., Ltd. (HHI) in that it features twin-engines and twin-propellers, was recently christened at the Ulsan Shipyard. Concordia Maritime AB's new ultra-large 315,000-dwt VLCC was christened by Mrs. Karen Fidler, wife of the president of Sunoco Inc., the company that chartered the VLCC. Built for Concordia Maritime, of the Stena organization, the VLCC is a revolutionary type of crude oil carrier. The 1,102 ft. (336 m) long Stena V-Max design VLCC differs from other large tankers built in the world to date. In addition to double hulls, the VLCC has double, completely separate engine rooms, double rudders and double propellers.