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MK 60 Encapsulated Torpedo (CAPTOR)

The Mk 60 CAPTOR is the US Navy's only deep water mine. The MK-60 CAPTOR, one of the Navy's primary anti submarine weapons, is actually a deepwater moored torpedo launcher. Mine Mk 60 is a sophisticated anti-submarine warfare (ASW) moored mine which is designed to detect and classify submarines and release a modified Torpedo Mk 46 to acquire and attack submerged targets only. This deep water mine is designed to be laid by aircraft or submarine, and is anchored to the ocean floor. The mine utilizes an influence firing device and is able to classify passing submarines. Its acoustic detection system is designed to seek hostile submarines, ignoring surface craft and friendly submarine acoustic signatures. The weapon lies dormant until a target is detected, at which time the torpedo swims out of its capsule to attack and destroy its target. As in other mines, the Mk 60 incorporates an arming-delay. The MK-60 can be deployed by air, submarine, or surface ship.

This weapon was developed by the Mine Division of the Naval Ordnance Laboratory, which is now located at the Naval Surface Warfare Center Dahlgren Division, Coastal Systems Station, Panama City, Florida. Because it can be converted to have some operational capability in littoral waters, a modification to CAPTOR is being considered as one of the options for the Littoral Sea Mine (LSM) program.


Primary Function Air and ship-launched lightweight torpedo
Contractor Alliant Techsystems
Power Plant Two-speed, reciprocating external combustion;
Mono-propellant (Otto fuel II) fueled
Length 102.36 in. tube launch configuration (from ship) 145 inches (368 centimeters) - Aircraft / Ship laid
132 inches (335 centimeters) Submarine laid
Diameter 12.75 inches
21 inches (53 centimeters) Aircraft / Ship laid
21 inches (53 centimeters) Submarine laid
Weight 517.65 lbs (warshot configuration)
2370 pounds (1077 kilograms) Air / Ship laid
2056 pounds (935 kilograms) Submarine laid
Range 8,000 yards
Depth Greater than 1,200 ft (365.76 meters)
Officially: "Up to 3000 feet (914 meters)"
Speed Greater than 28 knots (32.2 mph, 51.52 kph)
Detection System Reliable acoustic path (RAP) sound propagation
Guidance System Homing mode - Active or passive/active acoustic homing
Launch/search mode - Snake or circle search
Warhead 98 lbs. of PBXN-103 high explosive (bulk charge)
Date Deployed 1979

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Updated Sunday, December 13, 1998 7:50:23 AM