MODX70: The Revolution Arrives
Introduction
The 2025 International Multihull Show in La Grande Motte witnessed a watershed moment in the world of luxury yachting: the launch of the MODX70.
This 70-foot catamaran didn’t just turn heads—it redefined what’s possible at sea, combining visionary technology, zero-emission autonomy, and uncompromising comfort. Is the MODX70 a harbinger of a new era?
The MODX Team’s Pedigree
Behind the MODX70 stands Océan Développement, a French shipyard with deep roots in offshore racing and technological innovation.
The team’s résumé includes the celebrated MOD70 racing series and the “Race for Water” solar vessel, both projects that have pushed boundaries in performance and sustainability.
Founded in 2008 by renowned sailors Stève Ravussin and Franck David, and now led by Marco Simeoni, Franck David, and Jean Guyon, the Lorient-based team brings together engineers and sailors with a passion for renewable energy and advanced marine design.
Their collective expertise is evident in every detail of this yacht.
Aeroforce Wings: Inflatable, Retractable, Automated
At the heart of the MODX70’s propulsion are dual Aeroforce inflatable wingsails—a world-first in production catamarans. Each telescopic carbon mast deploys a 125m² inflatable wing, shaped to NACA airfoil standards.
When not in use, the wings deflate and retract, preserving aesthetics and safety.
- 35% More Power: The Aeroforce wings deliver a 35% performance boost over traditional sails.
- Automated Reefing & Trimming: All sail controls are automated and managed from the cockpit or internal bridge, allowing for one-button operation, partial inflation for reefing, and 360° trimming for optimal performance in any wind.
- Remote Control: The system is fully connected, enabling remote monitoring and control—an innovation borrowed from the world of offshore racing.
Electronic Controls & Energy Management
The MODX70 is a showcase of digital integration. From sail handling to energy systems, everything is monitored and controlled electronically, reducing crew workload and maximizing efficiency.
Solar Array & Hydrogeneration
A 70m² solar array—spanning the deck and bimini—feeds a 230kWh lithium battery bank, delivering up to 12kW of renewable energy. Under sail, twin adjustable-pitch propellers act as hydrogenerators, producing up to 3kW at 10 knots, helping to ensure that the batteries are topped up under sail.
Luxury Interiors: Layout & Living Space
Step inside, and the MODX70 looks like a luxury penthouse. The interior has a modern, high-end aesthetic, a Mediterranean vibe that emphasizes natural light and open spaces.
- Main Saloon: A vast, panoramic lounge with 360° views, seamlessly connected to the cockpit.
- Accommodation: Configurable for 8–12 guests, with en-suite cabins featuring eco-friendly materials and designer finishes.
- Galley & Dining: Big galley and indoor/outdoor dining areas, perfect for entertaining.
- Crew Quarters: Discreet, functional, and separate from guest areas for privacy.
Every detail is designed to minimize environmental impact without compromising comfort—a rare feat in any vessel, let alone one this advanced3.
Power Summary: Generation & Consumption
The MODX70 is engineered for full autonomy and zero CO2 emissions in both coastal and offshore cruising.
- Primary Propulsion: Twin 20kW electric motors, powered by the main lithium battery bank.
- Energy Sources:
- Solar: 70m² array, up to 12kW output.
- Hydrogeneration: Up to 3kW at 10 knots, thanks to adjustable-pitch propellers.
- Wind: Dual Aeroforce wingsails for primary sailing propulsion.
- Energy Use: All systems—including air conditioning, galley, and electronics—are powered from the central battery, ensuring silent, emission-free operation.
Range, Battery Setup, and Endurance
With a 230kWh lithium battery bank, the MODX70 can travel 100 nautical miles under battery power alone, even without wind or sun. At 5 knots, the range extends to 110 miles, making it practical for silent, emission-free passages or harbour manoeuvring. Under sail, the yacht is effectively unlimited in range, as solar and hydrogeneration continually replenish the batteries.
Construction Methods: Eco Materials & Build
The MODX70’s construction is as forward-thinking as its propulsion:
- Lightweight Composite Hull: Advanced composites and carbon crossbeams ensure strength and lightness, enhancing both performance and efficiency.
- Eco-Friendly Fabrics: Interior fabrics and finishes are sourced from sustainable, recycled, or low-impact materials, reflecting the yacht’s environmental ethos.
- Components are selected for longevity and to minimise the environmental footprint.
Technical Specs
| Spec | Value |
|---|---|
| Length (LOA) | 21.3 m / 70 ft |
| Beam | 10 m / 32.1 ft |
| Draft | 2 m / 6.56 ft |
| Displacement (light) | 23 t / 50,706 lbs |
| Sail Area (total) | 250 m² / 2 x 125 m² |
| Solar Array | 70 m² |
| Battery Capacity | 230 kWh (lithium) |
| Motors | 2 x 20 kW electric |
| Berths | 8–12 (customizable) |
| Water Capacity | 1,200 L |
| Designer | VPLP Design |
| Build | Océan Développement, Lorient |
Available for Charter
The MODX70 is available for charter, offering a unique opportunity to experience the future of yachting firsthand. Charter guests can expect silent, emission-free cruising, cutting-edge luxury, and the satisfaction of treading lightly on the oceans.
Price
The MODX70 positions itself at the top end of the eco-luxury market. While pricing is subject to customization and options, expect a base price in the region of €8 million.
Summary: An Incredible Machine
The MODX70 is a revolution on the water. With its inflatable Aeroforce wings, fully automated controls, big solar array, hydrogeneration, and luxurious, eco-conscious interiors, it sets a new benchmark for what’s possible in yachting.