An Analytical Method for Prediction of High Altitude Total Water Exposure for In-Service Long Range Aircraft

Event
International Conference on Icing of Aircraft, Engines, and Structures
Authors Abstract
Content
To support an industry wide response to an EASA proposed Special Condition regarding the threat of in-flight supercooled liquid water icing conditions at altitudes above FL300, Boeing 777 fleet data were used to estimate the frequency and severity of such icing occurrences. The data were from the calendar year 2019 and included ~ 950,000 airline revenue flights from around the world by multiple operators. The unique architecture of the Primary Ice Detection System (PIDS) on that model, in addition to robust meteorological data that was able to be correlated, afforded an opportunity to conservatively estimate the Total Water Exposure (TWE) and thus the Liquid Water Content (LWC) of the icing encounters captured at FL295 and above. This paper will outline the key methods used and present the findings.
Meta TagsDetails
DOI
https://doi.org/10.4271/2023-01-1435
Pages
8
Citation
Sanford, J., Bravin, M., Clarkson, M., and Natsui, E., "An Analytical Method for Prediction of High Altitude Total Water Exposure for In-Service Long Range Aircraft," Advances and Current Practices in Mobility 6(3):1111-1118, 2024, https://doi.org/10.4271/2023-01-1435.
Additional Details
Publisher
Published
Jun 15, 2023
Product Code
2023-01-1435
Content Type
Journal Article
Language
English