I don't intend to use the R127 receiver for actually flying the plane, though several have used it without problem. I used it to ground check because it was the only available PPM receiver I had. Clearly it does not like the JR8611a, or the 8611a does not like the R127. However, my original problem occurred with the R138 (PCM) receiver. From everything I have read there is a definate problem with SOME Futaba receivers and SOME other brands of DIGITAL servos. I'm trying to narrow down what works with what. The Hitec digitals seem okay, I just want to make sure they're not borderline and waiting to bite me. The simplest (though not necessarily the cheapest) solution would seem to be replacing the 8611 with a high torque digital Futaba servo. Meantime it is worth discussing this so others don't waste money, time, planes and safety on a set up that doesn't work. I have ruled out a bad connection issue - the problem occurs with the 8611 plugged directly into the receiver and NOTHING else plugged in except the two batteries (or one battery, or a different 4.8v NiCad battery). I have e-mailed JR Product Support with a question about the problem. We'll see what they have to say. I don't necessarily expect every manufacturers product to be compatible with every other manufacturer, but it would be nice to know which ones to avoid mixing.

Bill Gavin