Is AOA Real?

[fpluc]

This is what we need. Image grabbed from here

If I understand the discussion so far correctly though, we can emulate this by setting up the existing tone to start beeping slowly roughly when flying on speed, right? Or is the approach of estimating that speed too imprecise?

In other words, using the dynon aoa probe and beeping feature, through clever setup, we can get „close enough“, considering the probe costs less than 300 bucks, and we’re flying small single engine props into kilometer long runways, not f18s onto aircraft carriers…? Just like Hoyden mentions above, spending less time in ground effect flare than before

 

[Rhino]

Only to a certain degree. The percentage settings in setup equate to the color bands on the AOA indicator. You can't choose any number you want. There's only a few to choose from. You can also affect it somewhat by changing how you calibrate your AOA. That's discussed in oher threads here. But it's not a sliding scale of numbers you can choose to customize. It's more like a choice of A, B, or C, and you pick whichever one fits best.

 

[RV14_TD]

Only to a certain degree. The percentage settings in setup equate to the color bands on the AOA indicator. You can't choose any number you want. There's only a few to choose from. You can also affect it somewhat by changing how you calibrate your AOA. That's discussed in oher threads here. But it's not a sliding scale of numbers you can choose to customize. It's more like a choice of A, B, or C, and you pick whichever one fits best.

+ the AOA indication might be misleading when flying with different flap settings

 

[bbaggerman]

Here is a nice video Vac (Mike Vaccaro) made demonstrating the FlyONSPEED system...

FlyONSPEED generates both tones and a visual indexer display. Once calibrated it indicates ONSPEED and L/Dmax, as well as low energy. Flap setting is also taken into account. The system is open source. It would be nice if Dynon or someone else would incorporate the good work done by the FlyONSPEED team into their commercial system.

 

[PAN-Denmark]

Just jumping into this thread.... I just retrofitted my RV7 with the heated pitot/AOA - and am about to do the calibration flight. Many places I see that multiple stalls are required, but since the skyview does not know the configuration of the aircraft (I have no flaps indicator) - does it really matter if I do stalls with or without flaps to do the config ?

 

[Rhino]

For most aircraft, not really, though flaps down is the norm. You can run the calibration in multiple configurations. The calibration will only use the deepest stall, and that's usually the one with the flaps down.

AoA Calibration

A friend's new to him SportCruiser with dual EFIS HDX. AoA indicator had never been calibrated. We attempted calibration yesterday. Following the on-screen directions (pic), we did three stalls. Power off no flaps, power off full flaps, and a departure Stall. All three recorded by the system...

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