Helicopter exhibition in China

Helicopters performed various stunts and displays during the 2nd China Helicopter Exhibition in Tianjin.
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Helicopters prepare to perform during the 2nd China Helicopter Exhibition on September 1, 2013 in Tianjin, China. The 2nd China Helicopter Exhibition will be held from September 5 to 8. (Getty Images)
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Two helicopters perform during the 2nd China Helicopter Exhibition on September 1, 2013 in Tianjin, China. The 2nd China Helicopter Exhibition will be held from September 5 to 8. (Getty Images)
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A helicopter performs during the 2nd China Helicopter Exhibition on September 1, 2013 in Tianjin, China. The 2nd China Helicopter Exhibition will be held from September 5 to 8. (Getty Images)
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Two helicopters perform during the 2nd China Helicopter Exhibition on September 1, 2013 in Tianjin, China. The 2nd China Helicopter Exhibition will be held from September 5 to 8. (Getty Images)
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A helicopter performs during the 2nd China Helicopter Exhibition on September 1, 2013 in Tianjin, China. The 2nd China Helicopter Exhibition will be held from September 5 to 8. (Getty Images)
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Helicopters prepare to perform during the 2nd China Helicopter Exhibition on September 1, 2013 in Tianjin, China. The 2nd China Helicopter Exhibition will be held from September 5 to 8. (Getty Images)