I am using 4S 2800mah battery. and recommended 12X6 E prop with this motor: http://extremeflightrc.com/Extreme-Flight-RC-Torque-2814T-820kV-Brushless-Outrunner_p_1709.html
ESC= 50A
My plane is 3D Yak55, with 60" wing span.
flying weight= 1750 gram
Flying time= 15 minutes
Question: What prop should I use to increase flying time ?
3D experts...thanks