The Immelmann Turn is a tactical aerial maneuver used in aviation, particularly in dogfighting. It involves a half-loop followed by a half-roll, allowing a pilot to quickly change direction while gaining altitude. This maneuver is named after the German pilot Max Immelmann, who popularized it during World War I. In practice, the Immelmann Turn enables a pilot to reposition themselves for a better attack angle or to evade an enemy. It is effective for both military aircraft and aerobatic displays, showcasing the agility and responsiveness of the aircraft involved.