Advances in Aircraft Icing Forecast.

Kurzfassung

Shape and intensity of icing in clouds depend on meteorological parameters and such given by the icing structures. Usually not all of these parameters are known. As a first step towards an universal icing forecast method we developed a model which estimates the icing hazard of the rotor blade of a helicopter penetrating a low stratus layer. The most important meteorological parameters liquid water content and mean volume diameter were calculated by empirical formulas, considering the results of it in-situ observations in low stratus by DLR research aircraft Do 28. The icing profile is approximated by a cylindrical rod. A sufficient ice accretion calculation can be done by use of the Lozowski model.