When is WHAT? The desert test?
Tjat is done and for me in my aircraft I keep the AOA bar just at the yellow caution level. IAt this mark I get an intermittent audio eep in the headset. This gives 60 mph indicated and 500 FPM. It cames out to a little over 10:1.
The lake bed is about 2000 feet MSL.
The Dynon also gives wind direction and speed so I can make sure I get the best distance.
John M