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You've linked to a hydrofoil boat, which is quite different. The Seaglider is much faster, up to 180 mph (vs. the hydrofoils 77 kph / 48 mph).

OP may have been thinking of the Russian ekranoplans, which are similar nautical ground effect vehicles capable of 400± mph.

Perhaps you meant the "Caspian Sea Monster" [0] or similiar Ekranoplans? [1]

This is rule-breaking on HN; argue in good faith.