Sorry for hijacking your thread.
Im also about to make a rc plane controlled by the arduino processor. But at the moment Ill just go for stabilization and then upgrade with a barometer and such.
However, to the point where Im hijacking ur thread! Does your interrupt work good? I mean, when I try to go for interrupt with reciever it seems like its interrupting every second..
You know ur #include <PinChangeInt.h>, is it highlighted with orange colour? mine is grey but if you compare with others they have orange color..