Central Aerohydrodynamic Institute
RUS
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TsAGI to study critical surfaces of aircraft in ground icing protection

24 April 2015

Recommendations for the protection of aircraft from ground icing, developed with active participation of TsAGI, were included in the final document drawn up by the Interstate Aviation Committee (IAC). In the short term, it will be used by Russian civil air transport organizations.

Experts of the Central AeroHydrodynamic Institute (TsAGI) offered in the updated version of the document to consider in more detail the impact of ground icing on aerodynamics of an aircraft, or rather its so-called critical surfaces — wings and tail assembly. It is known that icing of these sections may lead to a crash. For example, the tail fin in turboprop aircraft is the component most vulnerable to icing. When the aircraft moves on the runway, deicing fluid along with residual ice clogs the gap between the fin and the other tail component — the elevator.

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Under these conditions the aircraft does not achieve the required angle of attack, thus increasing its take-off distance, meaning that is cannot gain altitude fast enough.

The inclusion of TsAGI’s proposals in the recommendations will help to build among pilots and aviation professionals a visual understanding of how the basic aerodynamic performance of an aircraft may change in the event of icing.

“The pilots and airport personnel, of course, must rely on current aviation science developments in the field of aircraft deicing; and this is what our solutions are aimed at,” said the Head of the Sector for Studies of the Effect of Icing on Aerodynamic Performance of Aircraft of TsAGI Gennady Andreev, PhD. He also stressed that the Institute has an opportunity to conduct a wide range of studies aimed at understanding ground icing, the results of which can be used to improve flight safety.

TsAGI Press Service
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