So we have been doing a lot of writting and explaining, and some people have asked for a simpler post for those who have a slighhtly better understanding of the technology. So in this post we are just going to show off some pictures and provide you a parts list and prices if you chose to build the same exact quad as we are offering as the $500 package deal for the built and tuned quad, 2 Grapheen Batteries, 4 sets of DalProp Crystal 5x4x3 QAV-R is the next generation of the QAV-210 which now offers a removable arms in an X shape, which should provide better handling, as well as the arms are now thicker but more narrow allowing for better thrust values and not loosing the durability. Parts List: Frame: Lumenier QAV-R 5" 220mm Quad with 4mm Arms $115 Carbon Fiber X Brace ...