The speed of a drop ride at Six Flags depends on the specific park, but the world-record holder is Zumanjaro: Drop of Doom at Six Flags Great Adventure in New Jersey. This massive structure drops riders from a height of 415 feet at a staggering top speed of 90 miles per hour. Passengers are hoisted to the top, where they catch a brief, terrifying view of the Philadelphia skyline before plummeting back to earth in less than 10 seconds. Other notable rides like Lex Luthor: Drop of Doom at Six Flags Magic Mountain reach similar speeds of 85 mph. These rides use high-tech magnetic braking systems (eddy currents) to ensure a smooth and safe stop at the bottom, even at such extreme velocities. In 2026, these attractions remain the pinnacle of gravity-based thrills, utilizing the height of existing roller coaster towers (like Kingda Ka) to maximize their vertical real estate. The sheer speed of the 90 mph freefall is designed to create a sustained period of "airtime" that is almost unmatched by any other type of amusement park attraction.