Hi

So i still try to figure out what is the main problem. My plane a piper like, has wingspan of : 59 and rope of 10.5.
The weight is 5.5 lbs.

I'm using a 11x9 propeller, with a ESC: Phoenix CC 80. And with an AXI 4130/20.
So i have 2 lipo pack now , 2x 3s4p rate at 6000mha 12 max. That i plug in parallel.

So the motor turn and it's was way underpower to flew. At full speed it can't roll on the floor.

So : Is my setting in the esc are wrong ? , Do i need to put the pack in series ?, or i mostly need 1 lipo : TP 6000 3s3p ?

Many thanks