
Innovative design: Renderings of new hybrid vessel concept Carapace, which can operate on both the surface of the sea and underwater.

Underwater operation: Devised by Italian-based naval architect Elena Nappi, it would be able to submerge to a depth of 985 feet for up to 10 days at a time.

Pioneering concept: The vessel, which measures 256 feet, would be made from a light aluminum superstructure.

Submarine/luxury yacht: Nappi came up with the innovative concept after years of nautical experimentation research.

Pioneering concept: "The world of luxury submarines is one of the last frontiers in the field of experimentation, and perhaps the hybrid will be the language of the future," says Nappi.

Lavish transportation: Carapace would be powered by a diesel-electric and fuel cell system.

Hybrid product: According to Nappi, it represents a "new class of mega yachts," bringing together the cosiness of luxury yachts and the "privacy" of immersion navigation.

Nautical adventures: It would hold three deck levels, with VIP cabins, a lounge, a spa, a bar and health club among the onboard amenities.

Luxurious experience: "Very often yacht owners are looking for original solutions to be able to offer their friends and their family something special, and certainly that of a diving cruise of this type is something unprecedented in the super yacht market," adds Nappi.

Plush amenities: "The attempt was to conceive, not only a space with new and soft shapes, but above all a welcoming and reassuring space, given the particular mission of the boat," says Nappi.

Multi-purpose vessel: Nappi envisions Carapace being hired for private trips, or business meetings that require "complete secrecy."

Mega yacht: It would be able to reach a maximum speed of 16 knots on the surface and 13 knots below water.


