
The Air Force is looking at potential warfighter use of international space-based position, navigation and timing (PNT) systems, the head of its space forces said Friday. Air Force Space Command (AFSPC) chief Gen. William Shelton said commercial PNT receivers being developed now are almost “system agnostic,” meaning they will be able to be used on other nations’ systems. For global constellations, the United States has Global Positioning System (GPS), the European Union has Galileo, Russia has its Global Navigation Satellite…