Fast glider amidships has two ellipse-form hollows located symmetrically directly next to one another over whole length of boat's hull, and keel-like lower edges of hollows extend parallel to one another

摘要

The fast glider amidships has two ellipse-form hollows (2) located symmetrically directly next to one another over the whole length of a boat's hull (1). The keel-like lower edges (3) of the hollows extend parallel to one another. The hollows are designed in the bow of the boat's hull to run out gradually.