Bell Helicopter has unveiled the Bell V-247 Vigilant tiltrotor, an unmanned aerial system (UAS) which combines the vertical lift capability of a helicopter with the speed and range of a conventional fixed-wing aircraft. 

The UAS is designed to provide long-endurance persistent expeditionary and surveillance capability, as well as lethal reach and runway independence to operate in maritime environments and locations without secure runway availability. 

The Bell V-247 Vigilant is designed to execute a wide array of mission sets, including electronic warfare, ISR (Intelligence, Surveillance and Reconnaissance), escort, C4 (Command, Control, Communications, and Computers), persistent fire missions and tactical distribution.

Some of the UAS’ features include a sea-based platform, cruise speed up to 250 knots (463 kph) or 180 knots (333 kph) for endurance speed and 300 knots (555 kph) at maximum continuous power. The V-247 Vigilant can hold a combination of fuel, armament, and sensors, up to 13,000 pounds (5,890 kg) with air refuelling capability.