F li g h t Te s t in g Te c hn i q u e s
every configuration there is only one stall AOA. Figure 3 applies whether flaps are up or down and at
any weight.
If your airplane has an AOA indicator, you would know how close
you are to stalling under all flight
conditions. A red mark on your
indicator for the cruise configuration stall AOA and a different
mark for the landing configuration AOA would keep you better
informed than applying the same
airspeed for all airplane weights
and configurations. Another
mark on the indicator for your
airplane's proper landing approach AOA can be a lifesaving
cross-check of your final approach airspeed.
There's one more mark you
might want to have on your AOA
indicator. That's for the AOA
42
Vol.2 No.2 / February 2 013
that results in both your maximum range cruise speed
and your maximum range engine-out glide speed.
Now that's a useful number, and we'll explain why
next month.