The three types of motor yachts can be distinguished by their displacement and hull type:
A blend of the other two types, they are more comfortable than planing and faster than displacement boats, have smaller draft and are capable of withstanding weather to a certain degree. However, they still need an expensive stabilizer system, fuel economy at higher speeds is far from ideal, and the hull integrity might be compromised when sailing in icy waters.
Obviously, each type is great for completing some tasks, and lacks necessary qualities for the others. Bering Yachts chose to give its customers safety, comfort, and freedom. This is why we build vessels, displacement yachts, that are seaworthy, safe, and rangy.
Displacement yachts are ideal for extended passages on the open water. Bering naval architects specifically design our boats to offer maximum capacity and displacement. Deep drafts and rounded hulls offer the greatest volume of onboard space, which allows the vessel to bear large amounts of fuel, provides a wealth of storage and living spaces, and enables it to carry all the necessary equipment, even including smaller watercraft. This gives our comfortable and stable boat an unmatched ability for long-range travel, luxurious conditions, significant passenger-carrying capabilities, and an unmatched number of amenities.
Focusing on displacement boats was a very measured and thought-out decision for Bering. We wanted to provide the true deep-blue enthusiasts with a vessel that is stable, but also affordable. This is why we do not make speedy boats or yachts over 24 meters. We let our customers conquer the seas hassle-free and with a peace of mind and a total assurance that this boat will carry you to wherever you want in any weather and sea condition.
What are the mechanics of displacement boats? When submerged in liquid, the boat is exposed to the “Archimedes’ Principle,” also known as the physical law of buoyancy. This force is equal in magnitude and opposite in direction to the weight acting on the volume of liquid displaced by the vessel. Said another way, when a yacht is at sea, it moves a certain amount of water, which is equal to its weight (don’t forget, this weight includes everything, including the ballast, gas and water onboard, etc.). However, the boat does not sink because its weight is still less than the weight of the water it displaces; the hydrostatic pressure under the hull is enough to keep the vessel afloat.
It is important to note that a truly accurate indicator of a boat’s weight is the displacement to length ratio. The higher this ratio is, the heavier the boat is. A heavier boat moves more water, has more stability, and, in general, is more structurally sound. The table below shows how the displacement changes on Bering boats in relation to their length.
Continuing on the length and displacement relation, Bering has produced a number of studies regarding this issue. More than 750 vessels available on the market were researched and compared to Bering-produced boats. The results are presented in two graphs.
Other indicators that are important for the displacement discussion are speed to length ratio and A/B (amount of mass above the waterline to amount of mass below the waterline) ratio. The hull shape comes into play as well. We look forward to addressing these topics in future installments. For now, let us reiterate: Bering choses comfort, safety, and freedom for ourselves and our clients. Full displacement boats offer these qualities in a way the other types of boats simply cannot .