Immelmann turn
* In modern aerobatics , an Immelmann turn ( also known as a roll-off-the-top , or simply an Immelmann ) is an aerobatic maneuver that results in level flight in the opposite direction at a higher altitude . 
<triplet> Immelmann turn <subj> aerobatic maneuver <obj> instance of <triplet> aerobatic maneuver <subj> aerobatics <obj> field of work