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How do foils deal with kelp or a casual whale?

• wthalheimer 3y ago
  We're exploring foil-mounted sensors (e.g. sonar) for whale (and manatee, turtle, etc) detection. So far in our 1/4 scale experiments, the foils have shed kelp pretty well. Kelp is something the America's Cup boats and even hydrofoil ferries (like in Japan and Hong Kong) have dealt with and solved.