Shill,

Maybe you can help me with this one. I read your post and we seem to be together except for the fail safe part. I am not disagreeing with you. I am asking. If you take a hit from an outside source this will obviously activate fail safe. Wouldn't this normally be just for a few seconds in most cases? Meaning, once the radio is able to restore the signal to the receiver wouldn't the receiver then respond to the radio or are you screwed ?

My understanding is that if the radio can get through the interference, which in most cases should be for maybe a few seconds then the receiver will negate failsafe and allow the radio signal to again control the airplane.

If I am correct then wouldn't the added filtering ability of PCM be good in that it helps to filter interference that otherwise could impact control of the airplane? Likewise, wouldn't fail safe then be a good thing if it enables you to program settings such as straight and descending flight with throttle at idle vs. the airplane going out of control, even for a few seconds? This is the logic I used in making my decision. If my understanding of fail safe is wrong then I too would question it's use. Like said, I am still learning and really want to know about this just as I'm sure others do.

I really appreciate your input or input from anyone else that can help explain it.