Mark 54 MAKO Lightweight Torpedo Mark 54 Torpedo aboard the USS Ross (DDG-71) in March 2008. Type Lightweight torpedo Place of origin United States Service history In service 2004–present Used by United States Navy Royal Australian Navy Indian Navy Royal Air Force Royal Thai Navy Production history Designer Raytheon Systems Designed 1999 Unit cost US$839,320[1](FY2014) Produced 2003 Specifications Weight 608 lb (276 kg)[2] Length 106.9 in (2.72 m)[2] Diameter 12.75 in (324 mm)[2] Warhead PBXN-103 Warhead weight 96.8 lb (43.9 kg)[2] Blast yield 238lb TNT Engine reciprocating external combustion Propellant Otto II (liquid) 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