Foil Set Leviathan 1550-663-370/73P or 83P

The Leviathan 1550-663-370 Foil Set is the benchmark Sabfoil kit for those who want the best in pump foiling in very light wind conditions, flat water, and SUP foiling in small waves. The ultra-high aspect ratio Leviathan 1550 front wing offers exceptional efficiency, with ultra-early takeoff, massive lift, and a very long glide, ideal for dock-starts and long pumping sessions.

The rigid 83P mast minimizes flex and torsion to ensure stability and control even during the most intense pumping, while the Flat 370 stabilizer adds maneuverability and predictable feel in turns. It's the perfect kit for those who want to make the most of very light wind or flat water days.

Key Strengths

• Leviathan kit specific for pump foiling, SUP foiling, and light downwind in very weak wind.
• 1550 ultra-high aspect ratio wing for incredible glide and maximum efficiency.
• Extremely early takeoff, ideal for dock-starts and flatwater pumping.
• Great lift and stability, perfect for SUP foiling and long glides on small waves.
• Rigid 83P mast for superior control and precise response under load.
• Flat 370 stabilizer for a good mix of stability and maneuverability.
• XXL bag and Q02K titanium quick release system included.

Who it's for

• Riders who want maximum support for pump foiling (dock-starts, jetties, piers, platforms).
• SUP foil enthusiasts looking for very easy starts and very long glides on waves.
• Foiler who want to have fun in extremely marginal wind and wave conditions.
• Those who desire a very buoyant, stable, and easy foil, more oriented towards glide and pumping than jumps and freestyle.

Components included in the kit

• Sabfoil Kraken Mast 83P (MK/83P) or 73P (MK/73P)
• Sabfoil Leviathan 1550 Front Wing (WL/1550).
• Sabfoil Flat 370 Stabilizer (SF/370).
• Fuselage 663 T8/R8 (F663K).
• Carbon rail plate with titanium inserts (CP02K/Ti).
• Hardware kit WL950/WL1150/WL1350/WL1550/WL1750/WM999 (MH163).
• Hardware kit stabilizers S330Y/S370/S376/S399/S400/SRD339/SRD379 (MH107).
• Hardware kit fuselages F663K/F703K/F753K/F903K/F1003K (MH138).
• Hardware kit carbon plate–rail board (MH160).
• Replacement pins and shims for Q02K system (MHQ02).
• Foam pad for plate (MH144).
• Allen keys, Torx keys and grease (MH137).
• Negative shims for stabilizers (MHW060).
• Sabfoil XXL hydrofoil bag (MA014).

Technical specifications

Leviathan 1550 Front Wing

• Wingspan: 1550 mm.
• Surface: 2140 cm².
• Volume: 2757 cm³.
• Aspect Ratio: 11.30.
• Maximum Chord: 170 mm.
• Maximum profile thickness: 22.9 mm.

Flat 370 Stabilizer

• Wingspan: 370 mm.
• Surface: 195 cm².
• Volume: 85 cm³.
• Aspect Ratio: 7.00.
• Maximum Chord: 67.5 mm.
• Maximum profile thickness: 7.3 mm.

Fuselage, mast and kit weight

• Fuselage: length 663 mm.
• Mast: height 830 mm and 730 mm
• Board connection: carbon plate (rail mount).
• Approximate foil kit weight: approx. 5.24 kg (83P)

Performance in water

Range of use and disciplines

• Range: Leviathan.
• Recommended for: dock-starts, pumping, SUP foil, light downwind.
• Optimized for very light wind, flat water, and small/slow waves.

Speed and control

• Approximate takeoff speed: approximately 6 knots or less.
• Approximate top speed (80 kg rider): 10 – 12 knots.
• Maximum directional stability and great control even during prolonged pumping.

Riding sensations

• Very full and super supported feel, with enormous lift at low speeds.
• Very long glide, ideal for connecting waves, bumps and downwind sections.
• Sufficient maneuverability for wide, fluid turns, with a focus on stability rather than radical maneuvers.

Advantages of the Leviathan line

• Ultra-high aspect ratio wings designed to maximize efficiency and glide.
• Great lift for dock-starts and prolonged pumping with less effort.
• Perfect set to make the most of marginal wind and wave conditions.
• Robust and reliable construction, suitable for intensive use and long sessions.

Matching tips

• Recommended with SUP foil boards or dedicated pump/dock-start boards with generous volume and good stability.
• Perfect as a single kit for pumping, SUP foil, and first light downwinds.
• Not recommended for jumping and freestyle: the significant size of the front wing makes it unsuitable for aggressive aerial use.

Frequently Asked Questions (Q&A)

Is this kit suitable for jumping and freestyle?

No, the large size and enormous lift of the Leviathan 1550 wing make the kit unsuitable for jumping and freestyle. It is designed for pumping, SUP foil, and light downwind, where glide, stability, and easy takeoff matter more than aerial tricks.

What level is required to use the Leviathan 1550-663-370/83P Foil Set?

It is suitable for intermediate and advanced riders: the great lift greatly helps with starts and maintaining glide. Even those new to pumping can benefit, as long as they have some general familiarity with foiling.

Is it a good foil for very light wind?

Yes, the kit was designed specifically for extremely light wind and small waves, with ultra-early takeoff and maximum efficiency. It allows you to fly and have fun when most foils struggle even to get off the water.

What is the difference compared to the Leviathan 1350?

Compared to the 1350, the 1550 offers even more lift, takeoff at even lower speeds, and an even more prolonged glide, resulting in an easier and "slow-motion" experience. In return, it is slightly less fast and a bit less maneuverable, but more forgiving and stable.

Which board is recommended with this kit?

It pairs best with SUP foil or dock-start/pump boards with good volume and maximum stability, especially if used for dock pumping. A larger and more stable board enhances the 1550 wing's lift and glide characteristics and makes learning easier.

What is the Q02K system for?

The Q02K titanium quick release system allows you to assemble and disassemble the foil quickly and precisely, maintaining rigid and quiet connections. It is ideal if you frequently transport the foil, change configurations, or want to minimize assembly time between sessions.