Test # 37
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Most Unique Bridges In The World
Myth about Aging
Eating Secrets to Help You Lose Weight
Fastest Things Known To Man
For almost a quarter of a century the top speed for a helicopter was 249mph (216 knots) set by a modified Westland Lynx in 1986. In July 2010 however, the Sikorsky X2 broke the barrier with a speed of 258mph over West Palm Beach, FL. By comparison, an Apache attack helicopter tops out at around 175 mph.