Estimating Icing Conditions with Highest Drag

"These data will be useful in evaluating and formulating ice accretion analyses and also performance penalty predictions." from NASA-TM-83556. Summary In "Ice Shape Drag Correlations" a correlation of drag due to icing was detailed using data from NASA-TM-83556 1. Here, we use the correlation to predict or estimate which icing conditions can result in the highest drag. The icing conditions predicted to have the highest Cd values cluster in a limited range of Figures 1 and 2 of Appendix C 2, even when wide ranges of airspeed and altitude are considered. The Appendix C, Figure 1 Icing Environment We will use the Appendix C Continuous Maximum Icing Conditions. Appendix C Figure 1 defines LWC as a function of water drop size MVD (noted as "Median Effective Drop Diameter"). Public Domain image. There is a standard horizontal extent of 17.4 nmi. defined that will be used here. A true airspeed …