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John,
The "Flaps" annunciation comes from the AOA Pro. It occurs when the flaps
are extended sufficiently to trigger the microswitch wired into the
actuation system. You should see the open circle in the center of the AOA
light when the flaps are at/past this point. It is in the system because
the top/bottom pressure differential may be different with flaps extended.
You should have calibrated the system both with the flaps up and extended.
Why it is necessary or useful for the pilot to have this information is a
whole other question, and one I was never able to resolve to my
satisfaction.
You can adjust the volume of the warning at the AOA Pro processor. I
presume you can turn it down to the point you won't be able to hear it.
Paul Bricker
On 7/12/11 1:25 PM, "John Hafen" <j.hafen@comcast.net> wrote:
>Gents:
>
>I hope one of you can help me "finger out" the link between my Chelton
>system and some other system (perhaps my AOA Pro) that causes an aural
>annunciation of "FLAPS" on the ground while taxiing, and at times in the
>pattern.
>
>In the Chelton documentation, Section 2 - Caution/Warning/Advisory
>system, it lists pages of warnings that will cause "Tones," "Chimes," or
>verbiage. The verbal warnings include: Pull Up, Terrain, Obstruction,
>Stall, Overspeed, Minimums, Too Low - Terrain, Too Low -- Gear, Too Low
>-- Flaps, Sink Rate, Glide Slope, Traffic, Fuel Low, etc.
>
>No where on the list does it designate a "FLAPS" aural warning.
>
>I'm guessing (need your assistance here) that the "FLAPS" warning is
>triggered some how from my AOA Pro, which I have carefully calibrated
>according to the documentation and calibration check lists.
>
>I can go into the system menu of the Cheltons and turn down the volume
>for all alerts, but I don't favor that approach. What I really care
>about is getting rid of the barking "FLAPS" warning -- especially while
>taxiing.
>
>Anyone have any ideas?
>
>Thanks in advance,
>
>John Hafen
>IVP N413AJ 300+hrs
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