Hi Folks,
For the past several years, we have been working on a project to demonstrate the utility of an innovative aural AOA warning system that assists the pilot with energy management when flying on the back side of the drag curve.
We’ve put lessons learned in this white paper: https://drive.google.com/file/d/1jipb5k2WMSjdZpOG6NDVNSDzHFXBfnRP/view?usp=sharing
An earlier thread on the topic is here: http://www.vansairforce.com/community/showthread.php?t=148638&highlight=onspeed
Last year, we conducted an Oshkosh forum on the topic and plan to conduct two sessions this year. As part of those presentations, we’ll give several tone generators to interested RV’ers that have Dynon AOA systems in their airplanes for field testing. We will also assist folks that have MGL AOA capability program and use the aural tone logic.
We initially thought the simplest approach to demonstrating the utility of this concept would be to build a prototype and produce a video of the system in use. What we learned is the first thing most folks focus on when they watch a video demonstration is the tone itself, which many immediately perceive as distracting or annoying. “I am not enjoying the thought of a bunch of folks flying into Oshkosh with a constant tone in their ear, distracting them from hearing the tower telling them to go around…” is representative of some of the feedback we get. Another comment we have received is that unlike military flying, civilian aviation is simply too varied and unpredictable for this type of logic to be useful. In actual use, the tone is readily internalized, and use becomes second nature; however, we understand that until folks have an opportunity to actually try it out, it’s difficult to convey the utility it offers. We refer to this phenomenon as “green eggs and ham syndrome.”
To help get the word out, gather more data and feedback from folks in the field, we will provide hardware, software, and flight test instructions to assist six beta testers with calibrating their Dynon AOA system, programming, installing and using an AOA tone generator in their airplane. Testers need Dynon DY-series or SkyView instrumentation with a differential pitot tube installed, be interested in conducting flight test (including multiple stalls), managing avionics configuration (using sub-menus and managing serial ports), using Dynon data recording and downloading data, and programming the adaptive tone generator (making small changes and compiling code for the Arduino processor). ANY RV’er with the appropriate avionics that enjoys experimenting is welcome!
Dynon experimenters will calibrate their AOA system, conduct a series of stall tests, download the data and send it to us for analysis. Additional calibration may be required. After calibration, we will program a tone generator to work in your airplane. Validation tests will be flown after installation to verify proper tone performance. It may be necessary to tweak individual settings by reprogramming the processor in the adaptive tone generator during the verification process. The tone generator is a stand-alone system that simply receives the Dynon data stream via 9 Pin serial input and uses a USB power supply. The pilot plugs the headset aux jack directly to the tone generator or connects it to the intercom aux input via patch cord. The indigenous progressive stall warning tone feature of Dynon systems is not used (it is actually left OFF via Dynon software selection).
Don’t shy away if you haven’t worked with a small prototyping processor…I’m an unfrozen caveman pilot that suffered through FORTRAN over thirty years ago that has a hard time finding the car in a parking lot—it’s doable
MGL experimenters are also wanted! If you have an iEFIS G3 with software version 1.0.2.9 or later, we will help you set up and test the “User defined AOA Enhanced Aural Tone Logic” mode.
Interested pilots should send an email with avionics configuration and experience to vacf15 at yahoo dot com.
Fly safe,
Vac
For the past several years, we have been working on a project to demonstrate the utility of an innovative aural AOA warning system that assists the pilot with energy management when flying on the back side of the drag curve.
We’ve put lessons learned in this white paper: https://drive.google.com/file/d/1jipb5k2WMSjdZpOG6NDVNSDzHFXBfnRP/view?usp=sharing
An earlier thread on the topic is here: http://www.vansairforce.com/community/showthread.php?t=148638&highlight=onspeed
Last year, we conducted an Oshkosh forum on the topic and plan to conduct two sessions this year. As part of those presentations, we’ll give several tone generators to interested RV’ers that have Dynon AOA systems in their airplanes for field testing. We will also assist folks that have MGL AOA capability program and use the aural tone logic.
We initially thought the simplest approach to demonstrating the utility of this concept would be to build a prototype and produce a video of the system in use. What we learned is the first thing most folks focus on when they watch a video demonstration is the tone itself, which many immediately perceive as distracting or annoying. “I am not enjoying the thought of a bunch of folks flying into Oshkosh with a constant tone in their ear, distracting them from hearing the tower telling them to go around…” is representative of some of the feedback we get. Another comment we have received is that unlike military flying, civilian aviation is simply too varied and unpredictable for this type of logic to be useful. In actual use, the tone is readily internalized, and use becomes second nature; however, we understand that until folks have an opportunity to actually try it out, it’s difficult to convey the utility it offers. We refer to this phenomenon as “green eggs and ham syndrome.”
To help get the word out, gather more data and feedback from folks in the field, we will provide hardware, software, and flight test instructions to assist six beta testers with calibrating their Dynon AOA system, programming, installing and using an AOA tone generator in their airplane. Testers need Dynon DY-series or SkyView instrumentation with a differential pitot tube installed, be interested in conducting flight test (including multiple stalls), managing avionics configuration (using sub-menus and managing serial ports), using Dynon data recording and downloading data, and programming the adaptive tone generator (making small changes and compiling code for the Arduino processor). ANY RV’er with the appropriate avionics that enjoys experimenting is welcome!
Dynon experimenters will calibrate their AOA system, conduct a series of stall tests, download the data and send it to us for analysis. Additional calibration may be required. After calibration, we will program a tone generator to work in your airplane. Validation tests will be flown after installation to verify proper tone performance. It may be necessary to tweak individual settings by reprogramming the processor in the adaptive tone generator during the verification process. The tone generator is a stand-alone system that simply receives the Dynon data stream via 9 Pin serial input and uses a USB power supply. The pilot plugs the headset aux jack directly to the tone generator or connects it to the intercom aux input via patch cord. The indigenous progressive stall warning tone feature of Dynon systems is not used (it is actually left OFF via Dynon software selection).
Don’t shy away if you haven’t worked with a small prototyping processor…I’m an unfrozen caveman pilot that suffered through FORTRAN over thirty years ago that has a hard time finding the car in a parking lot—it’s doable
MGL experimenters are also wanted! If you have an iEFIS G3 with software version 1.0.2.9 or later, we will help you set up and test the “User defined AOA Enhanced Aural Tone Logic” mode.
Interested pilots should send an email with avionics configuration and experience to vacf15 at yahoo dot com.
Fly safe,
Vac
Last edited: