noun
instrument flying; IFR flight
Aviation term for flying by reference to instruments, as opposed to visual flight (有視界飛行).
See also: 有視界飛行
パイロットは計器飛行の訓練を受ける。
Pilots receive training in instrument flying.
悪天候のため、計器飛行で着陸した。
Due to bad weather, we landed using IFR flight.