Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Ocean Odyssey is a self-propelled semi-submersible mobile spacecraft launch platform converted from a mobile drilling rig in 1997. The vessel is currently used by Sea Launch for equatorial Pacific Ocean launches. It works in concert with the Sea Launch Commander assembly and control ship. Its home port is the Port of Long Beach in the United States. In its current form, the Odyssey is 436 feet (133 m) long and about 220 feet (67 m) wide, with an empty draft displacement of 30,000 tons, and a submerged draft displacement of 50,600 tons. It has accommodations for 68 crew and launch system personnel including living, dining, medical and recreation facilities. A large, environmentally-controlled hangar stores the rocket during transit and then rolls it out and erects it prior to fueling and launch.