I've been working on a Nitro Predator for about a month and ahalf now. I'm stalled trying to figure out some problems with an Airtronics radio system I have that doesn't want to work. Everything "seems" OK but when I hook up servos to the receiver and try to control with the TX, no luck. the servos jitter when I apply power at the receiver, but no response at all to TX commands.am playing with adding a controllable rudder to the Predator for no other reason than the real one has one. So, I'm making it more difficult, I know. I'll probably end up fixing the rudder, but its fun to play with.