3 ms·

Going fast in water takes incredible amounts of power.

• m463 2y ago
  I don't know why hydrofoils aren't more popular
  • AlotOfReading 2y ago
    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 2y ago
      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.