Has-departed-delay

Has departed delay (Boolean operator)
        Becomes true <delay> seconds after the specified ship(s) or wing(s) have departed from the mission by warping out.  If any 
ship was destroyed, this operator will never be true.

Returns a boolean value; Takes 2 or more arguments:
        1:      Time delay in seconds (see above).
        Rest:   Name of ship (or wing) we want to check has departed.