X-47B

The X-47B was the survivor of the cancellation of the Joint Unmanned Combat Air System (J-UCAS) program in early 2006, becoming the Navy's choice for its Unmanned Combat Air System Demonstration (UCAS-D) program in August 2007. Program requirements included a radius of 1,240-1,860 miles (2,000-3,000 km) and a payload of 4,000 lb (1,800 kg). The UCAS-D program aims to demonstrate the capability of an autonomous, low-observable representative unmanned aircraft to perform carrier...