The Army has to find the appropriate balance between commonality and additional capability in its aviation fleet, according to service officials. A Sept. 7 event hosted by the Association of the United States Army included suggestions that the Army should shift away from its focus on commonality in order to better and more rapidly incorporate new technologies. The aviation branch chief, Maj. Gen. William Gayler, said the service should relinquish its "aversion to mixed fleets. . . . If you...