What does the term "double loop" refer to in roller coaster design?

The term "double loop" specifically refers to two consecutive inversions that create two loops in a roller coaster's design. This element is characterized by riders experiencing a complete vertical loop followed immediately by another loop without any straight track in between. The design enhances the thrill factor and provides a unique experience by allowing riders to experience the sensation of inversion multiple times in a row, often contributing to the overall intensity of the ride.

Understanding the format of inversions is essential for roller coaster enthusiasts, as it ties into the broader family of track elements that can significantly influence the ride experience. Other options, such as a loop combined with a corkscrew or a drop followed by a hill, do not align with the common definition of a "double loop" within roller coaster terminology. Similarly, a launch followed by a loop indicates a different design element that focuses on the initiation speed and does not convey the nature of consecutive loops. This proper identification of a double loop is vital for accurately discussing roller coaster features and engineering principles.