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Yep John,
Ya gotta push (actually release) the button
while you're weightless. I carry a little beanbag with me on calibration
flights. (Use something that won't hurt too bad if it conks you on the
head.) When it floats...I push (and release) the button. Two people
make this a bit easier.
Ideally, you should use the stall speeds for your
specific airplane. Yes, if you set it up for higher speeds you'll get warnings
at higher AOA's. This sounds good at first but getting an "angle, angle, push"
warning throughout your landing flair gets old pretty quickly. If you've set up
your AOA correctly, and you're making a particularly nice landing
you'll get a single "ang" just as you touch down.
Bill Harrelson
N5ZQ 320 1,700 hrs
N6ZQ IV under construction
Gents:
Hopefully
someone on the list knows way more about my AOA than I
do. Thanks
in advance for your
assistance.
Running through the AOA PRO II Calibration
Check List, in the Cruise
Configuration Calibration, the checklist
says:
Zero G Maneuver for 1/2
second:
YES
The next line says:
PTT Red Record
Button PUSH/RELEASE
My
question: Am I to assume that you push the Red PTT button during
the 1/2
second of Zero G
Flight? After? When?
You also have to
do some button pushing at 1.15 of Clean stall, and
1.15 of
dirty/landing configuration stall.
Having not repeatedly
stalled my IVP while looking closely at the airspeed
indicator, I
admit I canąt say exactly what the clean and dirty stall speeds
are,
although the numbers I have been able to glean are that an IVP
should
have a clean and dirty stall speed of 80 and 75 KIAS
respectively.
So to calibrate the AOA, I would be pushing
the buttons at 92 and 87 KIAS
for clean and
dirty.
Is there any reason to calibrate at higher speeds
than 92 and 87? Would you
get an earlier warning of an
impending stall?
Your advice and comments are very
welcome.
Regards,
John
Hafen
IVP 413AJ ‹ 200 hours
[The AOA records the data at
the release of the PTT button, so you can press it when you start the maneuver
and release it at the instant you are satisfied that you are performing the
required maneuver. <marv>
]
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