I flew with a single-position AOA system for over 50 years - Cessnas have an audible stall warning sensor. You can buy and install a similar device from Van's. It worked, was reliable and helpful. It said quite clearly, "Okay, far enough now, be wary." And then I flew OnSpeed's tone-based AOA system once, in an RV-10. The owner gave emergency a short description and with the volume adjusted properly for me, I found it easy house and gave me rather more information than the Cessna single-point system. I prefer the OnSpeed system, which was actually useful.
For people complaining about always needing to listen to the tune, no, just turn the volume down in cruise. Add adjusting the volume to the pre-take-off and pre-landing checklists.
It does require an AOA pickup, though, which might not be easy for your specific airplane. It would now be very difficult to retrofit to my RV-3B project for several reasons (that plane has the stall warning vane) and the SLSA I have on deposit would need to be put into ELSA status and then some careful designing done for it. But worth it.
On the basis of a single flight, I encourage any builder to install that AOA pressure pickup during construction.
Dave
For people complaining about always needing to listen to the tune, no, just turn the volume down in cruise. Add adjusting the volume to the pre-take-off and pre-landing checklists.
It does require an AOA pickup, though, which might not be easy for your specific airplane. It would now be very difficult to retrofit to my RV-3B project for several reasons (that plane has the stall warning vane) and the SLSA I have on deposit would need to be put into ELSA status and then some careful designing done for it. But worth it.
On the basis of a single flight, I encourage any builder to install that AOA pressure pickup during construction.
Dave
