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New Threat Upgrade
New Threat Upgrade (NTU) was a United States Navy program to improve the capability of ships equipped with Terrier and Tartar anti-aircraft systems.
==The Program==
was selected to install and test the Terrier New Threat Upgrade (NTU) Combat System with the improved Standard Missile Two Block II (Extended Range). Testing lasted from October 1981- March 1985. New Threat Upgrade allowed the full use of newer Standard missiles (SM-2) and improved the interoperability of the radar and computer systems aboard the ships. The system allows the ships to which it was fitted to time share illumination radars for multiple missile interceptions in a manner similar to the Aegis Combat System. Some sources claimed that NTU ships were superior in some respects to Aegis ships of the same era, particularly in the area of user interface. They were inferior in that they could not deal with a saturation missile attack as well as Aegis vessels. The lower levels of funding available to the USN after the Cold War lead to most of the NTU ships being retired early, because of high cost of operation compared to newer vessels. As a result, the United States Navy no longer fields any NTU capable ships and most newly constructed ships have the Aegis weapon system.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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