Hi guys i have just assembled a black horse liberty 182 she weighs about 5 pounds, what i can't suss out is i am using an axi 2826/12 and 11x6 prop and li-polymer 3s1p 11.1v 3300mah ............... thing is it has no power across my lawn let alone flight speed!!!!!! i think i may have to pop in my .53 gas engine? any help please[]