Potential Submarine Breakthroughs: Four Times Faster and Super Deep Diving
1. Deep flight is a small company that is making deep diving one and two person submarines. Deep Flight II (DFII), which has been designed and is awaiting funding, will be built with acrylic crew hulls for 3,000 feet or with titanium hulls with conventional viewports for 20,000 feet. Ceramic-carbon fibre hull will enable 37,500 …