noun
inverted flight; flying upside down
Aviation term for flying with the aircraft's back toward the ground. Used in aerobatics and combat maneuvers.
曲技飛行で背面飛行を披露した。
They performed inverted flight during the aerobatic display.
Compound of 背面 (はいめん, 'back side') and 飛行 (ひこう, 'flight').