Sikorskly X2 has become the world's fastest helicopter but its unofficial right now. This piece of technology is still in developing stage. This helicopter hit to the record of 258mph at test facility, breaking the previous record of 249mph by Westfield LYNX ZBX-500, which was set in 1980.
The Sikorsky X2 is an experimental aircraft radically designed to specifically test the X2 technology. The helicopter’s noticeable features include a contra-rotating propellers and the smaller pusher propeller at the rear along with a narrow and sleek profile.
The company wants to make it more better to hit its performance by cruising speed of 287.5mph & hopefully its will be done within this year.