ORIGINAL: Sir Raleigh
If you want to find out just what your plane will do with a loss of radio signal, turn on your transmitter, then the receiver, activate the motor and put it on full speed, start moving your control surfaces around and turn off the transmitter.
On mine, the motor stops and the control surfaces neutralize. This will put the plane in a glide for a straight-in landing (if nothing gets in its way).
Who sold you THAT load of BULL? Let's see, what happens if your plane is in a tight bank, dive or even inverted. BTW - You must be depending on a PCM failsafe or similar? Well, the engine may go to idle/off if that is how you have set it up and if you have set up for "neutral" contrals the plane will continue its bank right into the ground, or continue the dive into the ground or fly inverted (dive) into the ground.
If you think to the contrary, please tell me what miracle device you have installed. Even the so-called autopilots out there won't do what you have concieved.