Thanx guys for the input. I think i'm gana stick with the setup i got going. I may end up getting 2 of the 2cell lipos and wiring them in parrallel to give me some serious flight time if i need it. I think 30min is plenty so the 2100 will do the trick. I have a predator 3cell 2250 here allready but i think its too heavy and will make too much power. I know, there isn't ever too much power but on a light plane like this....i think there is. The wing loading has to be real light if i wana cruise around the yard and fly in my school gym....