Originally Posted by Cardinal
The wing AI is such a half-hearted system (outboard 3 slat sections) anyway I can't think why it would be so urgently needed for takeoff.
Or maybe the other side of the coin - if the cleanliness of those limited LE sections is so important that they bothered to install a WAI system just for them
maybe it is vitally important to keep that part of the wing clear, rather than to conclude it can't be that important.
No designer goes to the trouble of anti-icing or de-icing something just for the fun of it - those systems are a major PITA for many people and have to "buy their way" into the design. usually on the basis they are serving a vital function.