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复飞

复飞的示意图

复飞(Go-Around 亦称 Missed Approach)指的是飞机降落到即将触地着陆前,将机首拉起重新起飞的动作。而飞机有触地再复飞者称为“触地复飞”(Touch and Go),通常是训练飞行及特技飞行所使用。仪表进近时所指复飞点位即为复飞点 (Missed Approach Point, MAPt)。[1]

复飞的时机

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有下列情形时,飞行员会放弃降落而执行复飞:

  • 能见度低于可着陆的最低标准。
  • 侧风或逆风过大时。
  • 与前方降落或起飞的飞机间隔不足时。
  • 跑道上有其他飞机或是障碍物。
  • 塔台空管的指示。
  • 风切变
  • 飞行员认为现阶段无法将航机安全降落时。(例如突如其来的系统失效,未清楚起落架是否已落下并锁紧。)

复飞的程序

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  1. 将发动机功率调整至TO/GA(起飞/复飞)档位。
  2. 飞机爬升并加速。
  3. 收起襟翼
  4. 检查爬升速率。
  5. 收起起落架(若为可收起的机型)。
  6. 飞至空管所指定的高度。
  7. 以无线电联络空管报告复飞,在指定的空域待命以再度取得空管颁发进场降落许可。 *遇上某程度的风切变时,起落架是可以不需立即收起,以免收起时因空气阻力改变对航机爬升产生影响。只要确保航速没有超越该机型放下起落架时的速度,一般不会对航机结构有影响。

复飞安全与风险

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复飞率平均为每 1,000 次进场约有 1-3 次的复飞比率。[2]

复飞夹带的风险:

  • 无效的复飞启动会导致飞机失控(LOC)。

注释

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  1. ^ Wragg, David W. A Dictionary of Aviation first. Osprey. 1973: 206. ISBN 9780850451634. 
  2. ^ Go-Around Decision-Making and Execution Project: Chapter 6.3 - Ex Finding 1 (PDF). flightsafety.org. [February 25, 2018]. (原始内容存档 (PDF)于2021-11-19). 

外部链接

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复飞
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