mm43 - regarding feedback to the control stick I note that other forms of haptic feedback exist. I wonder if a vibration feedback to the pilot's back or some other convenient place could give a feel for control stick position without distracting the visual scan. If it was little vibrators in the seat back and one failed it would not be fatal such as an active stick force feedback might be. (Gus seems to hint that this can be done reliably enough military pilots will fly with it. But, as Dozy indicates it COULD be problematic if it went awry.)