I flew my Mini FuntanaX this weekend for the first time. It has an EF 480, an EF 40A ESC and 2100 TP batteries.

While the airplane flew very well the flight times were very short. I used three different packs and after about 6 minutes the ESC started to shut down the motors, forcing a landing.

I have a 12x6 prop on it and was wondering if that is is too much prop and is shortening the flying time so much. Or is it the EF ESC.

I have a mini stick with an EF 450 and a Phoenix 35 ESC and get nearly 15 minutes on the same battery.

Any thoughts or experience?