Bulbous bow construction, yielding a 25% lower fuel consumption!
Why such fuel savings?
In a conventionally shaped bow, a bow wave forms immediately before the bow, forming a wave system that increases drag. When a bulb is placed below the water ahead of this wave, water is forced to flow up over the bulb, producing a second wave system that cancels out the first. This result in the reduction of drag and affording an increase in speed, range, and fuel efficiency. Also, as the bulbous bow is completely immerged, it is retained by a huge weight of water, thereby reducing roll and improving the propelling axle as well as crew members' confort.