The effects of varying the angle of wind velocity and axis of a cylindrical icing object around all of the three mutually perpendicular axes are studied expert men tally. The mass, shape and profile of ice accretion obtained in a horizontal icing wind tunnel are investigated as functions of cylinder inclination The icing object is exposed to two types of aerosol Cloud, which are created by different procedures (i) injecting small droplets horizontally into cold air flow. (ii) injecting vertically filling large droplets into cold air flow; so that the resulting conditions simulate in-cloud icing and freezing rain, respectively. Observations reveal the effects of varying each angle on the mass, shape and profile of ice accreted under both conditions. (C) 2009 Elsevier Ltd All rights reserved