Multi-point Angle of Attack Sensing for Avoidance of Loss of Control in Flight

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Abstract

Recent Federal Aviation Administration (FAA) promotion of Angle of Attack (AOA) systems for stall prevention to reduce Loss of Control In-flight (LoC-I) accidents in the General Aviation sector has resulted in a proliferation of affordable AOA systems. Most systems consist of a multi-hole differential pressure sensor or a rotating vane sensor for estimation of AOA, some also require additional data from an Air Data Computer. This paper examines an alternative method for multi-point AOA sensing using COTS MEMS pressure transducers. The method employed multiple chord-wise sensors to measure local pressure and this was used to estimate local AOA for improved stall awareness. The results suggest that the multi-point method is feasible for AOA sensing and can provide local stall warning relative to a local chord airfoil. Expanding the system to span-wise has the potential to improve total stall awareness.
Original languageEnglish
Title of host publicationAIAA SciTech 2019 Proceedings
PublisherAmerican Institute of Aeronautics & Astronautics
Volume(In-Press)
ISBN (Electronic)978-1-62410-578-4
DOIs
Publication statusSubmitted - 10 Sep 2018
EventAIAA SCITECH 2019 - San Diego, United States
Duration: 7 Jan 201911 Jan 2019
https://scitech.aiaa.org/

Conference

ConferenceAIAA SCITECH 2019
CountryUnited States
CitySan Diego
Period7/01/1911/01/19
Internet address

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Milward, T. O., Bromfield, M., Horri, N., Ali, R., & Scott, S. (2018). Multi-point Angle of Attack Sensing for Avoidance of Loss of Control in Flight. Manuscript submitted for publication. In AIAA SciTech 2019 Proceedings (Vol. (In-Press)). [AIAA 2019-1540] American Institute of Aeronautics & Astronautics. https://doi.org/10.2514/6.2019-1540