well i am actually trying to make the lightest combo possible (motor,esc,batt) for a custom mini slow flyer i built out of cardboard..lol i currently have a 480 brushless outrunner and a 40 amp esc and the smallest batt i have is a 11.1v 910mah lipo.. so i was thinking of getting a 250 brushless outrunner, a 20 amp esc and a 7.4v 480mah batt.. i'm just trying to figure out if it has the power im gonna need for some slight 3D as a slow flyer