Characterizations of Aircraft Icing Conditions
This SAE Aerospace Information Report (AIR) provides various graphical displays of atmospheric variables related to aircraft icing conditions in natural clouds. It is intended as a review of recent developments on the subject, and for stimulating thought on novel ways to arrange and use the available data. Included in this Report is FAR 25 (JAR 25) Appendix C, the established Aircraft Icing Atmospheric Characterization used for engineering design, development, testing and certification of civilian aircraft to fly in aircraft icing conditions.
The information presented in the report is revised to reflect current icing certification procedures. The document is technically correct for Appendix C icing conditions, is mature and is not likely to change in the foreseeable future. There are additional icing condition definitions that have been developed to address supercooled large drop icing and mixed phase/ice crystal conditions. Addition of these icing conditions to this AIR would not fit within the scope of this document. Therefore, the document will not be revised in the future and the intent is to stabilize the document at its five year review.
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