A front drop, full twist horizontly to front drop.
a roll in which the plane follows a spiral course
A move starting on the stomach, with one full twist, landing again on the stomach; also known as a "Log Roll".
Aerobatic maneuver that is similar to an aileron roll, but having the airplane turning slightly left or right and adding a roll in that direction. An easier way to demonstrate is to take a cylinder and take a small ball bearing and try to get it to go in one direction (inside the cylinder!) and follow the circumference of the cylinder.
An aerobatic maneuver in which the aircraft does a corkscrew twist.
Taken (as many coaster elements are) from airplane acrobatic maneuvers. Indicates a complete sideways twist.
The name is taking from and acrobatic maneuver done by a plane. It is given to an element where a complete sideways twist occurs.
A barrel roll occurs when an object (usually an airplane or roller coaster) makes a complete rotation on its longitudinal axis while following a helical path, approximately maintaining its original direction.