The USS Oklahoma is pulled upright after capsizing due to damage during the Japanese attack on Pearl Harbor Dec 7, 1941. 21 massive GE DC motors were anchored to the shore and cables strung to the ship. It took three months to pull the ship upright. It was beached, patched up and sold for scrap, but while being towed to the US, it developed a leak. Despite the efforts of the salvors, the ship settled and finally, after many hours, rolled over and sank.