Sifting through some older aerodynamic points:
''... streamlined bikes could be dangerous because they shift the center of aerodynamic pressure in ways that impact stability.''
I already knew that large fairings would be a hindrance to stability in cross winds. I never thought that aerodynamics could make the Center of Gravity liquid until I watched a video on bikes Death Wobble (D.W.) where high frontal pressure lightened the front wheel.
I now have a higher windshield on my 1500 and thought the height created more vortexes and those vortexes created the wobble, apparently a wrong diagnosis but still could to a degree.
Until that D.W. video I never gave thought to bikes weight redistribution to the wheels. Lucky me I haven't hit high speeds yet. Definitely something to be aware of when designing fairings for bikes.
Thinking on that and cross winds acting on the larger fairing surface area. Is there a way the teardrop fairing could cheat side winds?
Quick thoughts turns to micro directional meshed panels and/or fish gills. In a direct wind air smoothly slips past the gills while side winds allows the air for flow through. Said gills should not be adjustable for obvious stability reasons.
So what else can be done to cheat side winds? Automatic mechanical vents? Example, large street banners are using punctured flaps to relieve air pressure. Maybe the fairings vents front openings could alternate it's open/close and open on the side of the cross wind thus relieving some of that airs side push? OR maybe the whole fairing could rotate a little in the direction of the wind? TUCKER anyone? (headlight turns in direction of the turn)
All this has needs to be addressed in any fairings design.
I have a lot more but wish to focus on one point at a time.
All this reminds me of an old term, "SPEED HOLES". Still sounds funny.