I wonder what they use for forward looking sonar. The ocean is rather littered w... | Hacker News

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sammyo on Sept 7, 2009 | parent | context | favorite | on: Hydroptere: A 60ft sailing hydrofoil

I wonder what they use for forward looking sonar. The ocean is rather littered with logs, boards, containers (that fall off ships, floating a foot below the surface) and the occasional whale.

TriinT on Sept 9, 2009 [–]

Maybe I am missing something obvious, but aren't logs and containers floating a foot below the surface also fatal for non-hydrofoil vessels?

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