Icing Design Envelopes (14 CFR Parts 25 and 29, Appenddix C) Converted to a Distance-Based Format

Abstract

The conventional liquid water content (LWC) VS mean effective diameter envelopes in Appendix C of 14 CFR Parts 25 and 29 can be redrawn in an equivalent, more versatile form of LWC vs horizontal extent. This document shows how that is done, and it illustrates a number of advantages and uses of this new, distance-based format for the envelopes.