I'm will testing on my hexa Y6 (http://www.youtube.com/watch?v=Lh_8jis5tQE&list=FLP2GsMyXgcJ7rzAIEZA0gAw&index=24) props. 15x7.5' (http://www.goodluckbuy.com/1575-15x75-carbon-fiber-propeller-prop-cw-ccw-for-quadcoptor-2-pair-.html)
PS: http://www.ecalc.ch/
