MORE ON SMART GLIDE
I’m a big fan of Garmin avionics and wonder if Garmin’s Smart Glide engine-out utility has access to oil pressure data, which is critical to determining the glide ratio in aircraft with a controllable pitch propeller.
In my Bonanza, glide ratio with a catastrophic engine failure changes from 10:1 to 6.5:1 if oil pressure is lost and the prop cannot be moved into a low drag setting (around 800 FPM versus 1500 FPM descent at best glide). I suspect it’s not a feature, as Smart Glide is listed as an option for GTN Xi-equipped aircraft. But, if an aircraft also has a Garmin EIS engine monitor installed (with oil pressure sensing), display of a range ring appropriate for the lower glide ratio could be triggered.