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    January 11

    名词解释 之 V1 VR V2

    第六章.「V1,Vr,V2」の説明
    前章で「V1,Vr,V2」について触れたが、ここでは補足説明を掲載する。
    V1(離陸決定速度)
    飛行機が離陸の為の滑走を開始し、加速途中でエンジン等のトラブルが発生した場合、離陸 を中止できる限界の速度。このV1以上の速度でトラブルが発生した場合は、オーバーランしてしまうので離陸操作を継続 しなければならない。 国際線では約285km/h。

    Vr(ローテーション速度)
    機種上げ速度、すなわちパイロットが操縦桿を手前に引いて飛行機が浮く時の速度。この速度では揚力が、十分に得られている。 国際線では約315km/h。

    V2(安全離陸速度)
    飛行機が安全に上昇・飛行できる最小の速度。 国際線では約335km/h。
     

     
     

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