My dad and I have our own biplanes!
We call them Sting Bi and they are my dads very own, cad designed pattern ships. Everything is cut out with our own cnc router. They have elevator and top wing adhedral, and are the best flying airplanes I've ever owned. My dad owns the first version, which is powered by a ys 175. It weighs approx 4900 grams. My biplane is redesigned to be light, and is powered by an electric neu f3a motor and supports 5000mah hobbyking batteries. rtf weight is approx 4150 grams
A new full composite design is in the works...