Sikorsky X2 Helicopter Demonstrator Reaches 181 Knots

Sikorsky says its X2 technology demonstrator achieved a speed of 181 knots (335 kmh) during a test flight this week in West Palm Beach, Fla.

The X2 combines an integrated suite of technologies intended to demonstrate that a helicopter can cruise at speeds of up to 250 knots (460 kmh), while retaining the excellent low-speed handling, efficient hovering and seamlessly transitioning to high speed, said the company.

The trial completed the third of four planned test phases and...