Question about flaps and flaperons
I have built a couple of aircraft now one out of coroplast and one kitbashed from a crashed decathlon. Now when I apply flaperons on the coroplast spad the aircraft dives like I gave down elevator. When I give flaperon with the former decathlon I gain altitude. I have been able to mix the flap with elevator in both instances but I would like to know why it does this so maybe I can design a model that does neither.