Which hull type's characteristics include requiring less power to move through the water and providing a smooth, comfortable ride, but with slower top speed?

Which hull type's characteristics include requiring less power to move through the water and providing a smooth, comfortable ride, but with slower top speed?

• A. Planing hull
• B. Semi-planing hull
• C. Displacement hull
• D. Hydrofoil hull

Answer: (C)

Displacement hulls move through the water by pushing it aside rather than riding on top of it. This makes them efficient at lower speeds, so you can move with relatively modest power while still maintaining a smooth, stable ride because they cut through waves instead of slamming over them. However, their speed is limited by hull speed, which keeps top speeds slower than planing designs. Planing and semi-planing hulls require more power to reach and sustain planing, delivering higher top speeds, while hydrofoil hulls use underwater wings to lift and reduce drag, differing from the slow-but-stable, fuel-efficient profile of displacement hulls.

Displacement hulls move through the water by pushing it aside rather than riding on top of it. This makes them efficient at lower speeds, so you can move with relatively modest power while still maintaining a smooth, stable ride because they cut through waves instead of slamming over them. However, their speed is limited by hull speed, which keeps top speeds slower than planing designs. Planing and semi-planing hulls require more power to reach and sustain planing, delivering higher top speeds, while hydrofoil hulls use underwater wings to lift and reduce drag, differing from the slow-but-stable, fuel-efficient profile of displacement hulls.