【勝手に引用】【時機に適う】
It had taken the RAF two years to train me to fly their fighters for them, and most of that time had been spent in training precisely for emergency procedures. The important thing, they used to say in flying school, is not to know how to fly in perfect conditions; it is to fly through an emergency
and stay alive. Now the training was beginning to take effect. (p.32, THE SHEPHERD by Frederick Forsyth)