Maybe it was the new tail design. Maybe it was skilled pilot. Maybe it was the twin rotor blades. Or maybe they all contributed to Sikorsky's X2 helicopter speeding past 249 miles per hour to become ...

Its design approach is aimed at swapping the main rotor with rigid coaxial blades, shortening the tail, removing the tail rotor, and adding twin ducted fans for higher performance, and longer range.

A little over a century ago, the idea of flying would have been laughable to many. Nonetheless, flying is entirely routine for millions today, and much of the reason that planes and helicopters are ...

The number of blades a helicopter has is very important because it speaks to what the helicopter was designed to do. For example, adding more blades can significantly improve a helicopter's ...