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(systems and operation of systems included)

This presentation describes the NASA icing research portfolio as of 2023 and includes overviews of NASA icing test facilities and computational tools. In addition, high-level summaries of NASA’s current icing research activities are described for the following areas: (1) Transonic Truss Brace Wing, (2) High Lift Common Research Model, (3) Advanced Air Mobility, (4) Characterization of Low Ice Adhesion Materials, (5) High Ice Water Content Flight Research, (6) Engine Ice Accretion using the Simulated Inter-compressor Duct Research Model, and (7) Efficient Quiet Integrated Propulsor. Finally, the presentation describes collaboration and partnership opportunities with NASA.

The 777X features a folding wingtip device to facilitate operation into more airports worldwide while providing efficiency gains of the larger wingspan in flight. Procedures for 777X operation allow for de/anti-ice treatment to occur in either the extended (horizontal) or folded (vertical) orientation. It is recognized that use of thickened anti-icing fluids on a vertical surface may have different characteristics than a horizontal surface. Boeing will share how it has considered the impacts of possible contamination on the FWT during initial certification to inform appropriate procedures and limitations in the operation and service manuals.