A small lightweight submersible designed for a wide range of one-atmosphere operations. This submarine is the ideal choice for Super-yacht owners, seeking a small easy to operate submersible. The key words in the design have been performance, passenger comfort and affordable. The submarine is easily transported by road, sea and airfreight. Crew: three. Operational Depth: 300ft (100m), with option of upgrade to 1000ft. Weight: 4 tons. Large front viewport, plus four conning tower viewports. External lighting, communications and sonar system (optional).