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Performance degradation of a typical twin engine commuter type aircraft in measured natural icing conditionsThe performance of an aircraft in various measured icing conditions was investigated. Icing parameters such as liquid water content, temperature, cloud droplet sizes and distributions were measured continuously while in icing. Flight data were reduced to provide plots of the aircraft drag polars and lift curves (CL vs. alpha) for the measured ""iced'' condition as referenced to the uniced aircraft. These data were also reduced to provide plots of thrust horsepower required vs. single engine power available to show how icing affects engine out capability. It is found that performance degradation is primarily influenced by the amount and shape of the accumulated ice. Glaze icing caused the greatest aerodynamic performance penalties in terms of increased drag and reduction in lift while aerodynamic penalties due to rime icing were significantly lower.
Document ID
19840005105
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ranaudo, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Mikkelsen, K. L. (NASA Lewis Research Center Cleveland, OH, United States)
Mcknight, R. C. (NASA Lewis Research Center Cleveland, OH, United States)
Perkins, P. J., Jr. (Analex Corp.)
Date Acquired
September 4, 2013
Publication Date
January 1, 1984
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
NASA-TM-83564
E-1943
NAS 1.15:83564
Meeting Information
Meeting: Aerospace Sci. Meeting
Location: Reno, NV
Country: United States
Start Date: January 9, 1984
End Date: January 12, 1984
Sponsors: AIAA
Accession Number
84N13173
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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