Maneuvering warhead. The missile warheads of ICBMs and SLBMs generally travel on a free trajectory outside the atmosphere and re-enter the atmosphere, but are controlled by aerodynamic wings, rudders, or rocket thrust to perform a predetermined maneuver to avoid anti-ballistic missiles (ABMs), or by terminal guidance to improve the accuracy of the warhead's hit. Trident missiles deployed in combat since 1980 have been equipped with this type of warhead. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
機動式弾頭。大陸間弾道ミサイル ICBMや潜水艦発射弾道ミサイル SLBMのミサイル弾頭部は,一般に大気圏外で自由弾道で走行し,大気圏内に再突入するが,その際,空気力学的な翼や舵,またはロケット噴射によってあらかじめ定められた運動を行なわせ,弾道ミサイル迎撃ミサイル ABMを回避し,あるいは終末誘導装置によって,弾頭部の命中精度を高めようとするもの。1980年から実戦配備のトライデント・ミサイルに,この種の弾頭部が装備された。
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