The woman in this picture probably doesn’t look familiar to you, but it’s likely that you know something about her. Christine Fox is the former Maritime Air Superiority specialist who inspired Charlie, the Top Gun instructor who took off with Maverick’s heart in the 1986 movie named after the Navy Fighter Weapons School. She’s also the Defense Department’s acting deputy defense secretary,  as of Dec. 3, a position she’ll hold while the Pentagon searches for a permanent replacement for outgoing Deputy Defense Secretary Ash Carter. Fox never actually taught at Top Gun, but she used her math and physics background…