Quite a few of these rams have been found. It seems the design of the front, with three horizontal edges, remained almost unchanged for centuries. Wikipedia [1

Quite a few of these rams have been found. It seems the design of the front, with three horizontal edges, remained almost unchanged for centuries. Wikipedia [1] has this to say about the rationale: > The blunt edge of the ram and the patterned protrusion were intended to break open the seams of the target ship while at the same time dispersing the force of impact on the attacking ship to prevent the ram from twisting off and damaging the attacking ship. It was also less likely to become stuck in the hull of its target. [1]: https://en.m.wikipedia.org/wiki/Naval_ram https://en.m.wikipedia.org/wiki/Naval_ram