After a U.S. submarine sank Iran’s IRIS Dena with a Mk 48 torpedo, attention turned to the Navy’s primary undersea weapon that first entered operational service in 1972.

The first moving naval “torpedo” was physically attached to the submarine that used it—with perhaps predictable results.

In an age of drones, the traditional Mark 48 torpedo creates a pressure bubble to snap ships in half after being fired by U.S. Navy submarines.

Old Tech, Hard To Defend Against. A US submarine sank the Iranian frigate IRIS Dena off the southern coast of Sri Lanka on Wednesday, killing 87 people. The submarine struck the ship with a torpedo, U ...

The US released footage of a Mark-48 torpedo sinking Iran's IRIS Dena frigate in the Indian Ocean, killing over 80 sailors. This dramatic event, the first enemy ship sinking by a US torpedo since WWII ...