But never heard about it before. I have ploughed through the AEA guide for deicing a number of times but never seen it mentioned yet. However it talks about Minimum amount of fluid to use on different aircraft for a sufficient Anti-icing capabillity, and for a medium sized jet it can be between 150-300 Litrers. Some of it flows off the wing during the spraying, some of it shears off during the takeoff roll. A guestimate would be that you have 100-200 kg of fluid on the aircraft until the point that it all blows off. How much this weight affects and aircraft of 20,000-60,000kg? I really don't know. On some aircaft if you have frost on the underside of wings you have to reduce the max weight by maybe 200kg. Does the shape of the fluid flowing down the wing have any resemblance to frost? I am sure research will continue and if proof can be found, Deicing tables/fluids/performance will be adjusted.
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