Mark 54 lightweight torpedo

Mark 54 lightweight torpedo
Mark 54 torpedo aboard the USS Ross (DDG-71) in March 2008.
TypeLightweight ASW torpedo
Place of originUnited States
Service history
In service2004–present
Used byUnited States Navy
Royal Australian Navy
Royal Canadian Navy
Royal Air Force
Royal Thai Navy
Royal Netherlands Navy
Republic of China Navy
Production history
DesignerRaytheon Systems
Designed1999
Unit costUS$839,320 (FY2014)
Produced2003
Specifications
Mass608 lb (276 kg)
Length106.9 in (2.72 m)
Diameter12.75 in (324 mm)

WarheadPBXN-103
Warhead weight96.8 lb (43.9 kg)
Blast yield238 lb (108 kg) TNT

EngineReciprocating external combustion
PropellantOtto II (liquid)
Operational
range
10,000 yd (9.1 km)
Maximum depth>450 metres (1,480 ft) (estimate)
Maximum speed >40 kn (74.1 km/h; 46.0 mph)
Guidance
system
Active or passive/active acoustic homing
Launch
platform
Mark 32 Surface Vessel Torpedo Tubes, ASW Aircraft, RUM-139 VL-ASROC

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.