The hull configuration is important, read this article to understand why and to help in choosing the yacht that suits your cruising lifestyle, not the shape you dream of!
3 HULL TYPES
Displacement hull, planing hull and semi-displacement hull.
Displacement hull are boats designed to cut through the water with some propulsion. They move through the water and push it away.
They will never go above the designed hull speed of that particular vessel which means that they are not able to plane even if no matter how much horsepower the boat has.
A planning hull runs above the water while a displacement hull moves through the water by displacing it. You recognize a planing mode by seeing the boat gliding on top of the water when she’s cruising fast. Note that different boats reach planing mode at different speed.
Usually, a planing hull runs on top of the water, getting from point A to point B at a very short time in a very high speed. They are therefore less fuel efficient, so are not geared to longer range cruising.
Like a displacement hull, the planning hull cuts the water at a very slow speed.
There are yachts that fit between displacement and planing yachts; yachts that exceed the speed limitations of displacement hulls, but do have higher speed potential of full planing hulls.
These yachts tend to be less efficient than displacement yachts at slow speeds, and less efficient than planing yachts at high speed.
The Semi-displacement hull is the best of both worlds. While typically most semi-displacement vessels do not cross oceans, many are capable and have the range and capability to do so.
A semi-displacement vessel can take advantage of increased power and can achieve greater speeds when needed. Applying additional horsepower consumes more fuel, but typically most semi-displacement vessels only take advantage of this available speed when needed.
Thank you for reading.