JF - I think one of the sources of information was Roscoe 1968, that detailed results that come down on the side of the Outside-In ADI.
As an honest question, do you think it would really take a huge amount of retraining to fly on an O-I ADI rather than an I-O ADI?
The one aspect that could create a problem in the future for the O-I ADI, is if it was installed in an aircraft with a HUD that obviously presents a display format of I-O. Of course you can then also progress onto the presentation of the roll index as another discussion point for the best format.
On a different note, does the general preference of aircraft reference symbol change when you are manually flying an aircraft, compared to when the flight director is up on the display? Most people that I have spoken to prefer the gull wing reference for manual flying, as it gives a better roll perception and the single cue "chevron" for FD (put the notch in the crotch). We have an aircraft (FAR 23) that will change the PFD aircraft reference symbol based on engagement of the FD or not. This was also done as the SFD has ILS indications in a "gull wing" dual cue format and there would have been potential confusion if the PFD had a dual cue FD.
Thanks
Nigd3
Last edited by Nigd3; 6th January 2009 at 07:05.