i spent way too long making the vapour trails off the wings physically correct. the game doesn't fake it. every frame it works out the circulation from your actual G, speed and air density, the pressure drop in each vortex core and over the wing, and how much water condenses out of that particular air. when you pull hard, the wing carries more lift, so the vortices off the wingtips and the LEX spin harder. their cores drop in pressure, the air in them expands and cools, and once it cools past its dew point the water condenses into a cloud you can see. so it depends on where you fly: humid Key West and the Pacific trail vapour at moderate G, while in the Nellis desert only the hardest pulls show. and past ~25° AoA the LEX vortex bursts into that curly, turbulent mass. go test it out for yourself. you need to press Tab to go into 3rd person view for this though. viperoneone.com