Typical flying speed is of the order of 20 kt. Landing into a 20kt wind you can
if you get it right, just step out of the air. But flying at 40kt groundspeed downwind at 200 feet is truly scary - one reason I gave up.
If you leave it very late to turn upwind the wingtip closer to the ground sees more airspeed than the other wingtip (windshear -
because the tailwind is less very close to the ground), which makes it hard or impossible to turn -
because the wingtip closer to the ground is experiencing more lift, which is just what you don't want when trying to turn. You are then committed to a downwind landing. Generally only a problem if you turn below 50 ft agl. Not a problem for airline pilots I trust.
