Team Partners
Proven Impact with Every Retrofit
3-7%
Drag Reduction*
12-20 months
Return on Investment*
USD 120,000-2,100,000
Annual fuel cost savings*
Improved EEDI / EEXI and vessel rating
Always On
Passive, no-maintenance technology
Flexible
Underwater installation outside of the dry docking schedule available
Download Our Brochure to Explore Detailed Specs and Real-World Success Stories
Built for the Future of Green Shipping
Fuel costs are soaring. Regulations are tightening. The pressure to decarbonize is increasing. Ship operators need reliable drag reduction solutions that cut CO₂ emissions without adding complexity.
At 13 Mari, we deliver low-cost, patented, passive hydrodynamic technology that boosts fuel efficiency for commercial vessels. Our engineered hull elements reduce water flow resistance, lowering operating expenses. The solution is always on, applicable to any hull form, engine and fuel type, and at zero operating expense.
In the Spotlight
We improve your ship's fuel efficiency without changing how it runs.
Using advanced simulations, precision hull mapping, and towing tank validation, we tailor each solution to the ship’s unique flow dynamics for fleet optimization. Our composite elements require no power, maintenance, or structural modifications, making them a simple, scalable upgrade for any fleet.
Zero off-hire time
for installation
No added systems or onboard space needed
No operating costs
or maintenance
One-day installation during regular dry dock activity
Low-risk, high-impact solution for any fleet
Working side-by-side with other energy-saving devices
Built to last five years
or more
