rotorcraft

[video] Sikorsky X2 Technology Helicopter Achieves 250kt

Sikorsky video of the Sep. 15, 2010 test flight during which its X2 Technology coaxial-rotor helicopter demonstrator achieved its 250kt speed goal. Conventional helicopters cruise at around 150kt. The X2 reached 260kt in a shallow dive as is expected to exceed 250kt in level flight once a sail fairing is fitted between the upper and

Top 10 Military Helicopters

For sixty years, battlefield helicopters have been providing commanders with capabilities when and where it matters most. The importance of the role they play on current operations is difficult to overstate and in the complex future defence environment, they will remain platforms and capability deliverers of choice. Today we have rounded up the top 10