Totally awesome or totally horrifying? The Swarm, a new roller coaster at Thorpe Park in Chertsey, UK is tearing up crash test dummies: The self-described “flight through apocalyptic devastation on Europe’s tallest winged rollercoaster” propels up to 28 riders at a time with their arms and legs dangling freely at 62 miles per hour and includes trips through an inverted 127-foot drop and several close encounters with walled structures that are designed to make passengers feel like they are about to crash.

Even former fighter pilots find the coaster a bit much: The ride’s designers ran some test runs with crash test dummies, leaving many shocked when the dummies returned from the experience missing arms and legs. A team of former British fighter pilots were then brought in as the coaster’s preparation neared completion.

Mark Cutmore, team leader of the Blades, a stunt pilot organization, told the Metro: “I am a self-confessed adrenaline junkie, but even as a pilot used to G-force there were some gut-wrenching moments, and I have to admit the near miss element is eye-watering — you really do feel as if you are going to crash into the structures.”

656c8f9c9e50x112.jpg New Roller Coaster Is So Fast That It Rips the Arms off of Crash Test Dummies

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New Roller Coaster Is So Fast That It Rips the Arms off of Crash Test Dummies