Forward-operating troops someday could be resupplied by unmanned vehicles – eliminating the need to deploy manned convoys on what has proven to be one of the most dangerous missions during combat operations against terrorists. The Army is poised to introduce its Joint Tactical Aerial Resupply Vehicle (JTARV). The pilotless, quad-rotor aircraft would be capable of delivering supplies at speeds of 60 miles per hour or greater, at low altitudes, with a payload capacity of 300 pounds. A team of researchers and engineers showcased the JTARV recently at Aberdeen Proving Ground, Md. As the program emerges beyond the prototype stage, operational JTARVs likely would carry advanced intelligent-navigation systems. Also, future iterations possibly could carry 800-pound payloads as far as 125 miles.