
The U.S. Army has seen a recent “spike” in unmanned aircraft mishaps and is trying to figure out what caused the increase, according to a service official.The Army has experienced eight unmanned aviation accidents so far in fiscal year 2016, which began Oct. 1, said Lt. Gen. Kevin Mangum, deputy commanding general of U.S. Army Training and Doctrine Command (TRADOC). "Those are still under investigation to try to determine what the root cause of those" is, Mangum said.By contrast, serious mishaps for…