This Insane Submarine Concept Doubles as a 107-Foot Superyacht

Steve Kozloff is making his marine dream a reality.

The California-based designer, known for penning pioneering sailing yachts, trimarans, and explorers, just unveiled a new submarine concept that would allow him to fulfill his dream of traversing the deep sea with his wife, Terry.

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Aptly christened the Deep Sea Dreamer, the 107-footer allows two or more seafarers to explore the underwater world in complete privacy. Constructed entirely of sturdy steel, the sub features massive viewing windows and a forward observation bubble that provides cinematic vistas of the surrounding ocean. It can also function as a regular yacht should you wish to explore the world above the waves.

Deep Sea Dreamer Submarine Concept
The panoramic observation salon.

Built for extended expeditions, the Dreamer is equipped with a hybrid diesel-electric propulsion system comprised of two Cummins engines, one electric motor, and 10 directional thrusters. During long voyages, the vessel cruises just below the waterline, with a fixed dorsal providing fresh air to the interior and the genset while expelling the exhaust. Kozloff says this submerged cruising position results in exceptional range, decent speeds, and smooth conditions. The sub has an estimated cruising speed of 6 knots, a maximum speed of 10 knots, and a go-anywhere range of 6,000 miles.

In addition, the Dreamer can dive to 328 feet and travel up to 100 miles on silent, electric power. The sub can also remain firmly planted on the ocean floor for up to seven days, with the onboard batteries providing power for the week.

Deep Sea Dreamer Submarine Concept
The owner’s suite.

Explorers will traverse the seas in the lap of luxury, too. The plush living quarters are akin to that of a superyacht. The two distinctive decks offer approximately 1,500 square feet of space for lounging and entertaining. Guests can easily travel between decks using the watertight elevator or ladder tube.

The interior includes an elegant dining area, a gourmet galley, a spacious salon, a forward lounge, a full-beam owner’s suite of 275 square feet, two guest cabins, and crew quarters. The panoramic observation salon is the highlight of the interior, with four recliners on the glass floor enabling guests to appreciate oceanic treasures. In addition, guests can enjoy nearly 2,500 square feet of space on the expansive exterior deck when the vessel is above water.

The sub remains a concept at this stage but Walt Disney once said, “If you can dream it, you can do it.”

Click here to see all the photos of the Deep Sea Dreamer.

Deep Sea Dreamer Submarine Concept
Deep Sea Dreamer Submarine Concept

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