背はい面めん飛ひ行こう

noun

inverted flight; flying upside down

Aviation term for flying with the aircraft's back toward the ground. Used in aerobatics and combat maneuvers.

• 曲きょく技ぎ飛ひ行こうで背はい面めん飛ひ行こうを披ひ露ろうした。

  They performed inverted flight during the aerobatic display.