What indicator shows during the AOA test at the LOW position?

The indicator that shows during the AOA (Angle of Attack) test at the LOW position is the amber donut, accompanied by a reading of 10.5 units on the AOA gauge. This is significant because the amber donut serves as a visual indicator that the aircraft is in the low angle-of-attack configuration during the test, denoting that the system is functioning correctly and within predetermined parameters.

In the context of AOA testing, different configurations and settings yield specific indicator results. The 10.5 units on the AOA gauge indicate a known and expected angle of attack during this phase of the test. This combination of the amber donut visual cue and the correct gauge reading confirms that both the instrumentation and the aircraft's aerodynamic performance are being accurately assessed at this low angle of attack.

Thus, the presence of the amber donut and the reading of 10.5 units work together to ensure pilots receive critical feedback on the aircraft's behavior at low angles of attack, which is essential for safe flying and effective handling of the aircraft.