sentences:  On 26 July 2010, Sikorsky announced that the X2 exceeded during flight testing in West Palm Beach Florida, unofficially surpassing the current FAI rotorcraft world speed record of set by a modified Westland Lynx in 1986.On 15 September 2010, test pilot Kevin Bredenbeck achieved Sikorsky's design goal for the X2 when he flew it at a speed of in level flight, an unofficial speed record for a helicopter.The demonstrator then reached a new record speed of in a shallow 2˚ to 3˚ dive, which was just short of the 303 mph achieved by the Sikorsky S-69 technology demonstrator helicopter.