The land-based test facility at Wallops Island will be used to evaluate the SPY-6(V)4 radar, its dedicated power system, and combat system interfaces before the radar is installed aboard USS Pinckney (DDG 91), the first Flight IIA destroyer selected to receive the SPY-6(V)4 upgrade. The effort is being carried out through collaboration between the US Navy, NASA's Wallops team, and industry partners. SPY-6(V)4 is one of four variants in the SPY-6 radar family and is the only version specifically designed to replace legacy radars aboard Flight IIA Arleigh Burke-class destroyers. Raytheon said other SPY-6 variants are already in service aboard two commissioned US Navy warships, while an additional 11 ships have received the radar and are undergoing testing ahead of commissioning. The company expects the SPY-6 family to be deployed on more than 50 US Navy vessels over the next decade.