Mark 54

The MK54 is the next generation lightweight torpedo that combines the MK50 search and homing system with the propulsion system of the MK46 torpedo for optimized performance in shallow water. The MK54 was developed by Raytheon under the US Navy Lightweight Hybrid Torpedo (LHT) program. Due to MK50 torpedo shortfalls and high costs, the MK54 has been designed to replace both MK46 and MK50 torpedoes. The MK54 can be launched from surface ships, rotary wing or fixed wing aircraft against potential underwater threats being suitable for both deep water or littoral environments. In addition to MK50 and MK46 legacy, the MK54 incorporates extensively COTS electronic components resulting in a highly cost-effective weapon system. Externally the MK54 has the dimensions of the MK50 torpedo. In April 2003, the US Navy awarded Raytheon a first procurement contract worth $25.1 million for 24 MK54 torpedoes to be delivered beginning in mid 2004. In June 2004, a second procurement contract was placed for 51 MK54 torpedoes as a part of a multi-year procurement contract worth $70-$500 million for MK48 and MK54 torpedoes. In later October 2004, Raytheon began full rate production of MK 54 torpedoes following successful evaluation and the US Navy authorization for initial operational capability and introduction to the fleet. In November 2022, the US Navy declared initial operational capability for the High Altitude Anti-Submarine Warfare Weapon Capability (HAAWC) allowing Mk54 torpedoes to be released by P-8 aircraft from higher altitudes.

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