８割の脱落率

According to AOPA and General Aviation News, 80% of student pilots drop out of training each year before receiving their pilot certificate. So what's causing 8 of 10 flight students to drop out? Here are some of the most common reasons...

AOPAによると、パイロット資格取得の前に毎年８割の訓練生が脱落しているという。10名の訓練生の内8名に何が起こったのか？ここでは典型的なパターンを紹介する。

https://www.boldmethod.com/blog/lists/2016/12/11-reasons-why-student-pilots-drop-out-of-training/