Deep-sea sub that can dive to 37,000 ft is light enough to launch from a yacht . Brainchild of designer Steve Fossett who is in process of producing first craft . `` Deep Flight II '' has no price tag yet but current sub `` Deep Flight Superfalcon '' cost $ 1.5 million . Hawkes : Superfalcon has a capability greater than Hawkes .
Deep-sea sub that can dive to 37,000 ft is light enough to launch from a yacht . Brainchild of designer Graham Hawkes who is in process of producing first craft . `` Deep Flight II '' has no price tag yet but current sub `` Superfalcon '' cost $ 1.5 million . Hawkes : Superfalcon has a capability greater than the U.S. Navy .