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North Sails 3Di - What you need to know - Sail Magazine

3Di Outlasts The Adventure

Francois Gabart and his 30-meter trimaran Macif broke the solo around-the-world speed record in December 2017 with a 3Di mainsail that had 45,000 miles BEFORE the start of his record run. 3Di powered all three around-the-world speeds records currently held.

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No Film. No Delamination.

3Di is composite technology, not a sail laminate. All other sailmakers use laminates of which Mylar film is an integral component. Moisture, sunlight, and fatigue degrade both the adhesives used with the film, and the Mylar itself. These cause delamination and film failure over time.

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Another Dimension

North Sails created 3D technology and is the only sailmaker to utilize full-sized molds. 3Di uses reconfigurable molds that are set to the sail’s intended flying shape.

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Made By Robots (mostly)

The only sewing on a 3Di sail is for attaching details such as corner reinforcements and clew straps.  

The majority of the 3Di process is automated and run by computers.

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Unique To You

North Sails has four versions of 3Di to suit different sailing styles and budgets.

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It Has To Be North

3Di is a patented sail technology that is exclusive to North Sails. There are many “black” and “gray” sails on the market, but they are actually Mylar based string sails hidden underneath a cover layer giving them the superficial appearance of 3Di without the performance.

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