David Spell, left, and Don Writesel of ARM Rides of Ohio, prepare to bolt the globe to the top of the StratosFear at Knoebels Amusement Resort Monday afternoon. The ride features a 148-foot-high tower from which a dozen riders strapped into harnesses will be dropped at a peak speed of 47 mph, spokesman Joe Muscato said. A magnetic braking system will break the free-fall descent. The system is “extremely reliable” and not affected by power outages, Muscato said. See another shot of the ride here.