Defense is
Air-to-air oil supply to drones and the 2 stage to test the cooperation of multiple aircraft
The research into air-oiling automation of military aircraft has advanced to the consideration of a technology to coordinate the 1 air-oiling machine with multiple unmanned oilers. Based on the validity of the automation confirmed by the manned aircraft, it deals with relative navigation, image sensors, interconnection between aircrafts, and moves from simulations to ground and flight tests.
