Bligh Reef Bligh Reef Bligh Reef, sometimes known as Bligh Island Reef, is a reef off the coast of Bligh Island in Prince William Sound, Alaska. This was the location of the 1989 "Exxon Valdez" oil spill. After the incident, US Code 33 § 2733 mandated the operation of an automated navigation light to prevent future collisions with the reef. Despite these efforts the tug "Pathfinder" ran aground on Bligh Reef on Dec 24, 2009, rupturing its tanks and spilling diesel fuel. Bligh Reef is also where Alaska Steamship Company's Olympia ran aground in 1910. Bligh Reef serves as a fishing ground
Oil tanker designs suffered from stability problems caused by the free surface effect, where oil sloshing from side to side could cause a ship to capsize. But this approach of dividing the ship's storage space into smaller tanks virtually eliminated free-surface problems. This approach, almost universal today, was first used by Swan in the Nobel tankers "Blesk", "Lumen", and "Lux". Others point to , another design of Colonel Swan, as being the first modern oil tanker. It adopted the best practices from previous oil tanker designs to create the prototype for all subsequent vessels of the type. It was the first dedicated