Immelmann (turn) Hear it!

Immelmann (turn) Definition

Im·mel·mann (turn) (im′əl mən; also, -män′)

noun

a maneuver in which an airplane is half looped to an upside-down position and then half rolled back to normal, upright flight: used to gain altitude while reversing direction

Etymology: after M. Immelmann (1890-1916), Ger ace