Once 'on top,' the hull type that skims along the top of the water is which option?

Once 'on top,' the hull type that skims along the top of the water is which option?

• A. Planing hull
• B. Displacement hull
• C. Semi-displacement hull
• D. Hull

Answer: (A)

Riding on top of the water happens when a hull uses lift to plane, lifting the boat so only a small portion of the hull stays in contact with the water. This plane-on-water effect reduces drag and allows the boat to skim across the surface at higher speeds. A displacement hull stays immersed and moves by pushing water out of the way, so it doesn't plane and remains slower with more hull contact. A semi-displacement can gain some lift but doesn’t consistently ride on top like a true planing hull. So the hull that skims along the top is a planing hull.

Riding on top of the water happens when a hull uses lift to plane, lifting the boat so only a small portion of the hull stays in contact with the water. This plane-on-water effect reduces drag and allows the boat to skim across the surface at higher speeds. A displacement hull stays immersed and moves by pushing water out of the way, so it doesn't plane and remains slower with more hull contact. A semi-displacement can gain some lift but doesn’t consistently ride on top like a true planing hull. So the hull that skims along the top is a planing hull.