ORIGINAL: diceman

Let me start over.

I believe that a radio enduced failsafe shut down is not appropriate. I also believe it's not safe. I believe a low throttle setting, extend the gear failsafe reaction is appropriate and safe.

My concerns center around the radio systems not the engine ECU's. Most radio systems sense failsafe in a few miliseconds +/-. The JR radio is the only radio system that I am aware of that allows the user to set the length of time after sensing the failure, interference, loss of sig. etc before the failsafe actions take place. I believe it's up to three seconds.

Any of us who fly with pcm equip. in other planes, sport or otherwise experience failsafe from time to time and never know it. It happens so quickly it's not noticeable. Now apply that to the other radio equipment and see what happens.

It's my understanding that all the other radio manuf (except JR) that produce the equipment suitable for what we do, have failsafe systems that do not have a deelay. This would mean under the proposed guidelines begining in 2005 that a very brief 1 second failure will cause an engine shutdown. To me this is not safe, and will cause more problems than it would ever solve. Not to mention the potential loss of a airplane for no reason.

I hope this explanation is a bit more clear.