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nick3443 7 days ago

Going fast in water takes incredible amounts of power.

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m463 7 days ago | parent [-]

I don't know why hydrofoils aren't more popular

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AlotOfReading 6 days ago | parent [-]

Because they're expensive and unreliable for most applications. They need more power, they increase draft, they don't tolerate debris, and they really dislike rough seas.

	▲	lstodd 6 days ago \| parent [-]
		They do fine for passenger traffic. Draft, debris and rough seas are not a problem. You need gas turbines or very unusual diesels for the power, that is the problem.