Mark 54 lightweight torpedo

The Mark 54 lightweight torpedo (formerly known as lightweight hybrid torpedo, or LHT) is a standard 12.75-inch (324 mm) anti-submarine warfare (ASW) torpedo used by the United States Navy and several other nations' armed forces. == Development == The Mark 54 was co-developed by Raytheon Integrated Defense Systems and the United States Navy (USN) under the USN's Lightweight Hybrid Torpedo program in response to perceived problems with the extant Mark 50 and Mark 46 torpedoes.

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