OK, where are you getting the idea that the heli will continue to fly rather than crash. Where does it say in the manual that in the event the TX signal stops the heli will continue to fly. All helis will continue to have power if the TX signal is dropped. The receiver is not a switch. When a signal is lost the receiver does not know this. It continues to listen to whatever is out there for instructions. With a TX signal loss, there are no instructions being sent. More than likely, it will remain in the last instruction before the loss until a different instruction is sent by another TX or interfering signal. I have a hard time believing that without instructions, that any heli will fly on it's own.

I understand what you are asking now. And no, all electric helis do this as far as I know.

Jason