A Tablet app was used to direct an Air Strike with a MV22 Osprey in a live fire training exercise

nextbigfuture.com - 4/30/2015

On March 27, DARPA successfully tested the full Persistent Close Air Support (PCAS) prototype system for the first time as part of TALON REACH, a U.S. Marine Corps infantry/aviation training exercise conducted in the southwest region of the United States in partnership with the Marine Aviation Weapons and Tactics Squadron One and the Marine Infantry Officer Course (IOC).

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