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Can the information and data on deicing.net be used as reference for actual operations?

This website and the information it contains is only meant to give you an idea about actual operations, and shall not be used instead of other operational documents and manuals.

Are the values and tables on deicing.net up-to-date?

Yes. When the tables are updated by authorities, our website also makes the necessary updates in ten working days.

What is Allowance Table?

Allowance times are for use with undiluted (100/0) fluids applied unheated on aircraft with rotation speeds of 100 knots or greater.

What is LOUT?

The LOUT is the lowest temperature at which a fluid has been determined to flow off aircraft critical surfaces in an aerodynamically acceptable manner (AS5900) while maintaining the required freezing point buffer.

The freezing point buffer is 7 °C below OAT for Types II, III, and IV fluids and 10 °C below OAT for Type I fluids.

What does METAR stand for?

A weather report issued regularly at intervals of an hour or half an hour describing weather conditions at an airport.

How is the amount of the de-icing fluid applied on an aircraft determined?

There is no standard amount to be applied; however, an approximate amount can be determined based on some elements such as surface area, application experience. For anti-icing application the fluid should be applied at a rate of at least 1 liter per square meter. The quantity amounts we provide on this website are based on these factors.

How do we determine the mixture amount?

Fluid type, brand, OAT and LOUT are key elements that determine mixture amounts

What is the freezing point of the Type I fluid, and how is it determined?

The freezing point of the Type I fluid, generally should be 10°C lower than the OAT. The freezing point is generally determined by using a refractometer and chart provided by the fluid manufacturer.

Is anti-icing code only transmitted after anti-icing application?

Anti-icing code is only for anti-icing application, and it shall be communicated by supervisor to the cockpit after the anti-icing application is completed.

Why is the anti-icing code communicated to the cockpit?

Because the flight crew must make the application records and data entries into AML


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