X-47B Unmanned Combat Air System (UCAS)

The X-47B is an unmanned combat air system carrier (UCAS) is being developed by Northrop Grumman for the US Navy (USN). The strike fighter size unmanned aircraft is currently in its demonstration phase. The unmanned aircraft was first developed as part of the X-47 programme. Air worthiness of the X-47B unmanned combat air system demonstrator was developed at an estimated cost of $813m. The aircraft performed a successful initial test flight at Patuxent River, Maryland, US, in July 2012. The X-47B is expecte