Originally Posted by
Waldo Pepper
In my Big company, it's SOP on the A320/A321 to land Flap 3 (unless you can think of a reason not to) for the purpose of saving fuel, since the power settings are less.
Correct, however should not be used of wet or worse runways.
Windshear, fuel, noise, missed approach gradients are positives, negative is the higher approach speed, greater landing distance, additional braking and wear, hydroplaning speeds, and possibility of a tail strike.
Judgment is needed, blanket policy for it does not make sense in all situations.