Mark 54 Lightweight Torpedo


Scale 3D printed model of a Mark 54 torpedo.

Length: 8 5/8″ Width: 1″

The Mark 54 Lightweight Hybrid Torpedo (LHT) was developed by Raytheon and the US Navy to replace the Mark 46 and Mark 50 torpedoes. It was designed to be a more affordable and effective option for countering both nuclear and conventional submarines in shallow water environments.

The Mk 54 combines the homing portion of the Mk 50 with the warhead and propulsion sections of the Mk 46, and also uses commercial off-the-shelf (COTS) technology to reduce costs. It shares much of the software and computer hardware of the Mk 48 ADCAP heavy torpedo.

The Mk 54 can be fired from surface ships or aircraft, and has been used in combat by the US Navy.


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