Virgin Oceanic

[4] The company plans to launch a deep sea submersible capable of carrying its passenger to extreme ocean depths.

The deep sea adventure will be supported by the 125-ft super-catamaran Cheyenne mothership, and plans to use the HOT DeepFlight Challenger sub[5] to make dives to the depths of the worlds oceans.

Only two subs in history, the Bathyscaphe Trieste in 1960 and Deepsea Challenger in 2012 have ever reached the deepest known point in the ocean at the bottom of the Mariana Trench.

[9][10] The sub's outer casing is made of a carbon fiber composite and is designed to maximize hydrodynamics.

[11] The first dive is planned for the deepest place on the planet: the bottom of the Mariana Trench – about 11 kilometers (7 mi) below the ocean's surface.

Subsequent dives will be planned to carry a human pilot to the bottom of the Arctic, Southern and Indian oceans.

[14] Based on testing at high pressure, the DeepFlight Challenger was determined to be suitable only for a single dive, not the repeated uses that had been planned as part of Virgin Oceanic service.