as with any thing , if there is enough demand , it will happen , that being said , there is nothing to keep a company from making a large stacked rotor designed heli but even tho they are insainly stable , the fairly limited performance evelope vs the higher cost a larger counter rotate heli would have probably makes production of one fairly unlikely. that said keep in mind that the larger heli's are also much much more stable than the little micro heli's like the cp cp pro ect. a well set up large scale ( non 3d ) gasser would be fairly close in fly-ability to the cx2 , it would just cost nearly 10 times as much or more. the wonderfull thing about the cx2 is how in expencive it is to own and operate as you learn the "basics" of heli flight the down side is to perform well it needs to be in very still air , preferably inside in a gym or somthing. having flown min in a dance hall with no air currents its stunning what that little thing can do when its free of prop wash and air vents .


one last quick note , the best reason for any one to make a larger cx like machine would be to make a scale version of the russian stacked rotor attack helli , and who knows maybe some one allready has some sort of conversion kits out there for that reason. its the only real life full size helicopter that uses a system like that that I know of .