Naval Ram

A ram was a weapon carried by varied types of ships, dating back to antiquity. The weapon comprised an underwater prolongation of the bow of the ship to form an armoured beak, usually between six and 12 feet (2–4 m) in length. This would be driven into the hull of an enemy ship in order to puncture the hull and sink, or at least disable, that ship.

The ram was a naval weapon in the Greek/Roman antiquity and was used in such naval battles as Salamis and Actium. Naval warfare in the Mediterranean rarely used sails, and the use of rams specifically required oarsmen over sails in order to maneuver with accuracy and speed, and particularly to reverse the movement of a ramming ship to disentangle it from its sinking victim, lest it be pulled down when its victim sank. The Athenians were especially known for their diekplus and periplus tactics that disabled enemy ships with speed and ramming techniques.

Rams were first recorded in use at the battle of Alalia in 535 BC. There is evidence available to suggest that it existed much earlier, probably even before the 8th century BC. They appear first on stylized images found on Greek pottery and jewelry and on Assyrian reliefs and paintings. The ram most likely evolved from cutwaters, structures designed to support the keel-stem joint and allow for greater speed and dynamism in the water.

Many other historical vessels were used as rams, such as the Korean Turtle ship.

The Athlit ram, found in 1980 off of the coast of Israel near Atlit, is an example of an ancient ram. Carbon 14 dating of timber remnants date it to between 530 BC and 270 BC.

Rams were thought to be one of the main weapons of war galleys after c. 700 BC, and the Athlit ram's construction implies advanced technology that was developed over a long period of time. Heavy timbers were shaped and attached to the hull, and then the bronze ram was created to fit around the timbers for added strength. The evidence for this lies in the remnants of timbers found inside the Athlit ram when it was discovered. 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.

...
Wikipedia