My flight time was limited by the sudden power outages resulting in frame customization (crash!) but with the GentLED set for 8 seconds and I guess I was aloft about 3 minutes the last flight doing the math I got a bunch of pictures. If (again) I was an experienced pilot I would not need more than 5 minutes to take all the pictures I needed at each athletic facility I am taking stills of. My DF came with the HD motors and I did not notice any real heating up of the motors (although the mud packed into the bottom of each motor made a good heat conductor).