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/ 17 June 2006

US’s temperamental roller coasters

At 206kph and a little more than 45 stories tall, the Kingda Ka roller coaster at Six Flags Great Adventure gives riders quite a thrill.That is, when it’s working. As the amusement park this week unveiled another fast and furious roller coaster — a wooden one called El Toro — it’s also doing all it can to tackle a problem experts say is common with many high performance roller coasters: reliability