Two rocket-powered aircraft took off together April 24 to showcase the Rocket Racing League's new aerial muscle as it kicks off a 2010 World Exhibition Tour.rnThe league unveiled its new Mark 3 X-racer rocket plane in the high-flying event, which was part of the QuikTrip Air & Rocket Racing Show in Tulsa, Okla. Beginning this year and stretching into 2011, the Rocket Racing League will conduct a series of demonstrations at air shows across the country.
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机译：两架火箭动力飞机于4月24日一起起飞，展示了Rocket Racing League在2010年世界巡回赛开始时的新空中肌肉。该联盟在这场高空飞行的赛事中推出了其新款Mark 3 X-racer火箭飞机。从今年开始到2011年，火箭赛车联盟（Rocket Racing League）将在俄克拉荷马州塔尔萨市（Tulsa）举行的QuikTrip航空和火箭赛车展中参与其中。
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