Jet Shark Q400 - Submersible Boat

The Jet Shark Q400 is a 6.35 m semi-submersible boat that blends jet-powered surface cruising with underwater freedom. Styled like a fighter jet and controlled with a two-axis stick, it turns a day at sea into something closer to flying an aircraft on and just below the water.

The Design

The Q400 is the flagship of Jet Shark, a US builder specialising in submersible watercraft. Its silhouette is deliberately aerodynamic, more aircraft than powerboat, with a canopy that can be sealed to keep the cockpit dry when the hull ducks below the surface. The wingspan reaches 2.95 m for stability on the water, and a raised snorkel gives the boat its unmistakable predator profile.

What Makes It

The hull is a modified deep-V, hand-laid in fiberglass with vinyl ester resin for saltwater durability. The canopy is half-inch aircraft-grade acrylic sealed by pneumatic gaskets, creating a quiet, watertight cabin. Inside, the cockpit seats four or five in suspension-mounted bucket seats trimmed in premium marine upholstery, with air conditioning and a Kicker audio system. Instrumentation includes a Sihovision 16-inch waterproof navigation display, a Maratron N2K engine monitoring computer and a forward snorkel camera for situational awareness.

On the Water

Propulsion comes from a Kodiak Marine L87 6.2L V8 pushing 407 horsepower through twin impeller jets. Steering is done with foot pedals and a two-axis electro-hydraulic control stick that commands pitch and roll, letting the pilot glide across the surface or dip the bow for semi-submerged runs. Dry weight sits at 1405 kg with a 170 L fuel capacity, enough for extended day trips with real range.

Specifications

• Builder: The Jet Shark (USA)
• Category: Semi-submersible jet boat
• Length: 250 in / 6.35 m
• Beam: 69 in / 1.75 m
• Wingspan: 116 in / 2.95 m
• Height (snorkel on / off): 102 in / 2.59 m or 60 in / 1.52 m
• Draft at rest: 21 in / 0.53 m
• Dry weight: 3100 lb / 1405 kg
• Fuel capacity: 45 gal / 170 L
• Seating: 4 or 5
• Hull type: Modified deep-V, hand-laid fiberglass with vinyl ester resin
• Canopy: Half-inch aircraft-grade acrylic, pneumatic seals
• Engine: Kodiak Marine L87 6.2L V8, 407 hp
• Propulsion: Twin impeller jets
• Controls: Foot-pedal steering, two-axis electro-hydraulic control stick
• Cockpit tech: Sihovision 16 in nav display, Maratron N2K computer, snorkel camera, Kicker audio, air conditioning
• Base price: 311,875 USD

Optional upgrades:

• Purpose-built tandem axle trailer: 15,625 USD
• Second helm station: 7,800 USD
• Electro-hydraulic reverse: 2,730 USD
• Premium marine audio and reverse camera display: 3,762 USD
• Custom upholstery with embroidered headrests: 5,400 USD
• Waterproof radio comms (2 headsets): 3,120 USD
• Custom fit boat cover: 1,920 USD
• Custom airbrushed paint scheme: price on application

Discover the full Water collection at TheArsenale.