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The S-400 ''Triumf'' ((ロシア語:C-400 «Триумф»), ''Triumph''; NATO reporting name: SA-21 Growler), previously known as S-300PMU-3, is an anti-aircraft weapon system developed by Russia's Almaz Central Design Bureau in the 1990s as an upgrade of the S-300 family. It has been in service with the Russian Armed Forces since 2007. The S-400 uses three different missiles to cover its entire performance envelope. These are the extremely long range 40N6, long range 48N6 and medium range 9M96 missile. ==Development== The development of the S-400 system began in the late 1990s. The system was formally announced by the Russian Air Force in January 1999. On 12 February 1999, the first tests were performed at Kapustin Yar in Astrakhan which were reported successful. As a result of this, the S-400 was scheduled for deployment in the Russian army in 2001.〔 In 2003 it first became apparent that the system was not ready for deployment, and in August two high-ranking military officials expressed concerns that the S-400 was being tested using 'obsolete' interceptors from the S-300P and concluded that it was not ready for production.〔(【引用サイトリンク】title=S-400 (SA-20 Triumf) )〕 The completion of the project was announced in February 2004. In April, a ballistic missile was successfully intercepted in a test of the upgraded 48N6DM interceptor missile. Officially accepted for service in 2007.〔(【引用サイトリンク】title=-400, )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「S-400 (missile)」の詳細全文を読む スポンサード リンク
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