I want to bulid an quadrotor which can lift a weight of more than 5 kg... is it possible to build it.... can any one can pls say me how does an quad rotor works.... pls give me your contact number so that i can call u and clarufy my doubts........
THIS LINK WILL HELP YOU
http://www.rcindia.org/electric-planes/quadrotor-rtf-sale/