What is the sound of a backwards scream?

Find out when Six Flags runs roller coaster in reverse

Six Flags Over Georgia will celebrate the opening of the 2018 season by running the historic Great American Scream Machine roller coaster in reverse. The promotion starts Saturday for a limited time.

If it were easier to pronounce, you could call it a "rellor retsaoc."

That's "roller coaster" backwards, and Six Flags Over Georgia is going forward with plans to make its Great American Scream Machine run backward beginning Saturday for a limited time.

"The Great American Scream Machine embodies all of the classic thrills Six Flags Over Georgia is known for in the Atlanta region," says park President Dale Kaetzel. "Now, coaster fans will be able to experience this beloved ride backward and the exhilarating sensation when you can't see the turns coming."

By the numbers

Six Flags Over Georgia’s Great American Scream Machine:› 3,800 — feet in length› 57 — fastest speed reached› 2 — minutes the ride lasts› 105 — its maximum height

The Great American Scream Machine has provided nearly 9 million rides since it debuted in 1973, the longest, fastest and tallest wooden roller coaster in the world at the time.