>That's a good point. Even though theoretically AOA is a better concept than
>airspeed, it may be hard to measure it accurately, especially at cruise speeds
>and beyond. Nevertheless, I am still not convinced that this is not possible.
>A single instrument calibrated in terms of AOA and airspeed does not seem like
>a far-fetched idea.
It probably is feasible but it would need some way of adjusting the
airspeed to readout according to weight, which is changing all the time.
AoA at landing speed would be accurate and tells you immediately if
something has changed whereas the ASI is 20 seconds behind it. That is the
real advantage. You may not need extreme accuracy for cruise and climb speeds.
I think you need AoA for operating near the ground or maneuvering and ASI
for navigating.
Graham
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