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When the boats are foiling, they’re riding only on the leeward daggerboard and both rudders.

We tipped the boat again, and I swam around to grab the daggerboard.

A single daggerboard—which slides vertically through the keel to reduce sideways movement—costs hundreds of thousands of pounds.

The Italian team dropped out of that race because of a damaged daggerboard.

Artemis Racing sailed with a new daggerboard in the port hull.