MK-46 Torpedo

Mod-0 Torpedo

The MK-46 torpedo is designed to attack high performance submarines, and is presently identified as the NATO standard. The MK-46 torpedo is designed to be launched from surface combatant torpedo tubes, ASROC missiles and fixed and rotary wing aircraft. In 1989, a major upgrade program began to enhance the performance of the MK-46 Mod 5 in shallow water. Weapons incorporating these improvements are identified as Mod 5A and Mod 5A(S). The MK-46 Mod 5 torpedo is the backbone of the Navy's lightweight ASW torpedo inventory and is expected to remain in service until the year 2015. The MK 46 originated with the RETORC I (Research Torpedo Configuration I) program conducted by the US Naval Undersea Center (NUC) at Pasadena, CA.






STATISTICS

Mission

Air and Ship Launched Lightweight Torpedo

Developed by

USA

Deployed by

USA

Service

US Navy

Development Year

 

Deployment Year

1966

Targets

Ships and Submarines

Platform

 

Number Built

1,500

Number Deployed

 

Contractor

Alliant Techsystems

SPECIFICATION / PERFORMANCE

Length

8 ft. 6.3 in.

Body Diameter

1 ft. 0.75 in.

Wing/Fin Span

 

Launch Weight

517 lbs.

Range

Officially 8,000 yards, reportedly 11,400 to 12,000 yards

Speed

45 kts.

SUBSYSTEMS

Propulsion

Twin Screw

Engine

Two-speed, reciprocating external combustion, mono-propellant (Otto fuel II) fueled

Payload

98 lbs.

Warhead

PBXN-103 High Explosive Warhead

Guidance

Homing mode - Active or Passive / Active Acoustic Homing
Launch / Search mode - Snake or Circle Search

Depth

Officially Greater than 1,200 feet, reportedly 1,500 feet.