when I was flying my NEXTAR with all the add-ons I was getting about 12 min per flight.
without the extras it will max out about 17 min, my standard time would be gadjets 10 min no gadjets 15 min for a stock tank and flying at about 2/3 throttle. for those who like to go over 15 min on any flight good luck, I personally begin to loose my edge at about 15 min or so after 2-15 min flights I also check my batterys for power level to be safe.