Named after the WW I ace Max Immelman, this maneuver is the opposite of the Split-S. You pull back until your plane is flying level and upside down, then you roll your plane right side up. This is the most efficient was to gain altitude and reverse your direction. Do not fly this when the enemy is anywhere near since it leaves you slow and vulnerable.

Inversion element where half a vertical loop is followed by half an in-line twist, meaning the train has completed one inversion and travels in the opposite direction exiting the element to that when it entered. Named after a World War II stunt plane manoeuvre.

a maneuver used by fighter aircraft

an inverse dive loop

Aerobatic maneuver flown like a loop, but on the top of the loop, the airplane levels out, flying 180º of the direction it started the loop. A Double Immelman is one Immelman on top of the other, usually taking the airplane in the same direction when it started the first Immelman.