"The destructive force of one torpedo can break apart and sink a cruiser within minutes. A single cruise missile can level a multi-storied building. A ballistic missile can level a city. Submarines are rarely used in maritime intervention operations except in a supporting role because of the extreme damaging force of their arsenal. You cannot use an axe when a scalpel is needed. The rapid advance of technology can provide the submarine with just such a scalpel. The opportunity exists to augment the destructive capability of large-warhead torpedoes with a small, highly accurate and agile torpedo, built to disable rather than destroy. The rapid sinking of an enemy ship leaves the foe with a significant loss but an easy decision: acknowledge their sacrifice but carry on the mission. In contrast, the disabling of an enemy ship not only removes that asset from the pending fight, but also leaves the group commander with a strategic decision; leave the vessel behind, provide it a guard, or take it in tow. The other two options remove other assets and slow the progress of the fight. If left behind, the vessel becomes an obstacle to other ships and disrupts the easy movement of the formation. In the confusion, collisions are possible with added potential for fires and flooding. Known as the Common Very Lightweight Torpedo (CVLWT), this new breed of torpedo is a small, short-range rapid-attack weapon. Pennsylvania State University Applied Research Laboratory is developing it under the sponsorship of the Office of Naval Research and the Undersea Defensive Systems Program Office, as an anti-torpedo torpedo. Required to be fast and agile, it is smaller than the current lightweight lightweight torpedo; 6.75 inches in diameter, about 9 feet long, and one -third the weight of the Mark 46 lightweight torpedo. The key to its performance is a state-of-the-art processing architecture known as the Torpedo Intelligent Controller. The architecture uses a form of fuzzy logic to track multiple targets and find the target of interest with surprising accuracy.'