What should be expected when making a downwind landing? The likelihood of

Explanation

With a tailwind the airplane approaches at its normal airspeed, but the wind adds to it, so groundspeed is higher; the Airplane Flying Handbook notes this steepens the needed approach picture, lengthens the float and the landing roll, and makes it likely to overshoot the intended spot. Airspeed at touchdown is not what increases; groundspeed is, and undershooting is the headwind problem.