Is Advanced Mainsail Shaping The NEXT SAILING ARMS RACE?! Sea Wolves TV deep - dive.

14 August 2026 24:37 23.9K views 0 logs

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What if the next big offshore sailing arms race isn't happening below the water… but high above it?

For years, IMOCA and ULTIM teams have pushed relentlessly into foils, hull shapes, autopilots, ergonomics and skipper comfort. Now another area is starting to receive serious attention: mainsail shaping.

Actual Ultim 4 has introduced a new dynamically bendable mast, combined with LiDAR sensors that can measure the real 3D shape of the mainsail while sailing. Gitana 18 is exploring the same problem from another direction, using movable spreaders to influence mast—and therefore sail—shape.

T...