Calibration of updated AoA probe

[60av8tor]

Anyone else have any issue with the calibration of the replacement heated AoA probe? I installed the replacement this AM, but never got the calibration as accurate as the previous probe. I'm pretty sure I did one iteration when I calibrated the last probe and it worked perfectly - began beeping approaching the stall, becoming a solid tone at the break.

This AM, I must have done the calibration at least 10 times. Sometimes I would get the beeping just prior to the break, sometimes just at the break - never heard the solid tone. I've flown the previous probe/calibration long enough to realize that during my base to final turn at my standard pattern AS, I have too many green AoA bars for my profile.

I have to think I'm jacking up the calibration process in some way. The instructions are pretty basic - set up fast cruise, oscillate +/- 5' 4 times, enter stall, recover to normal flight, hit stall button. Can someone clarify a few questions about the process - honestly can't remember exactly what I did last time:

The oscillations - is this up to 5' down to 5', 4 times, or does each oscillation count - up 1, down 2, up 3, down 4 - does it even matter?

After the oscillations, you go right into the stall - does it matter power on or off?

I tried several variations on the calibration theme, but kept coming up with similar results as initially stated.

I appreciate any help

 

[dlloyd]

I just replaced mine, went out and checked without doing a calibration. It seemed to give the normal and expected alerts at the right speeds. Then I did the calibration. I counted up and down 5 degrees as one cycle. Four cycles then slowed and did a couple of stalls with and without flaps. It all works like the old one.

 

[60av8tor]

I just replaced mine, went out and checked without doing a calibration.  It seemed to give the normal and expected alerts at the right speeds.  Then I did the calibration.  I counted up and down 5 degrees as one cycle.  Four cycles then slowed and did a couple of stalls with and without flaps.  It all works like the old one.

Thanks for the info - that's pretty much what I did exactly.  Mmmm - not sure what's up.  Guess I'll give it another (10!) try and see how it works out.

 

[Dynon]

Just to get a better handle on how your stall(s) are affecting your resulting calibration: try trimming down the set of stalls you do to just one - I suggest the normal landing configuration to start.

 

[60av8tor]

Just a follow up. Went out to try another calibration, but tested a stall first. Calibration was spot on for a full flap approach stall - go figure...