Angle-of-Attack Estimation for General Aviation Aircraft

The angle of attack is one of the most important flight parameters. In the framework of the present study, a flight data recording method was designed to analyze the Valasek angle-of-attack estimation method and investigate its applicability for general aviation aircraft. This was performed using tw...

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Main Authors: Marin Ivanković, Milan Vrdoljak, Marijan Andrić, Hrvoje Kozmar
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/10/3/315
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author Marin Ivanković
Milan Vrdoljak
Marijan Andrić
Hrvoje Kozmar
author_facet Marin Ivanković
Milan Vrdoljak
Marijan Andrić
Hrvoje Kozmar
author_sort Marin Ivanković
collection DOAJ
description The angle of attack is one of the most important flight parameters. In the framework of the present study, a flight data recording method was designed to analyze the Valasek angle-of-attack estimation method and investigate its applicability for general aviation aircraft. This was performed using two devices characterized by substantially different characteristics. The test flight, and the ground test, i.e., a flight simulator experiment, were conducted. Two flight regimes were analyzed: (a) steady climb and descent with low values of angle of attack, (b) approach to stall with idle power with an increase of the angle of attack to the critical value. A satisfactory angle of attack estimate was obtained for the steady climb and descent regime, while the approach to stall estimate was less accurate but still indicative and considered useful for the pilot. The results indicate that less expensive synthetic sensors may provide acceptable results compared to high-quality certified equipment. A proposed modification of the estimation method enables simplification of the required equipment, while offering important information to the pilot.
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spelling doaj.art-178c6a9f509b4fb2a5916ca4933c9e0b2023-11-17T08:59:22ZengMDPI AGAerospace2226-43102023-03-0110331510.3390/aerospace10030315Angle-of-Attack Estimation for General Aviation AircraftMarin Ivanković0Milan Vrdoljak1Marijan Andrić2Hrvoje Kozmar3Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaThe angle of attack is one of the most important flight parameters. In the framework of the present study, a flight data recording method was designed to analyze the Valasek angle-of-attack estimation method and investigate its applicability for general aviation aircraft. This was performed using two devices characterized by substantially different characteristics. The test flight, and the ground test, i.e., a flight simulator experiment, were conducted. Two flight regimes were analyzed: (a) steady climb and descent with low values of angle of attack, (b) approach to stall with idle power with an increase of the angle of attack to the critical value. A satisfactory angle of attack estimate was obtained for the steady climb and descent regime, while the approach to stall estimate was less accurate but still indicative and considered useful for the pilot. The results indicate that less expensive synthetic sensors may provide acceptable results compared to high-quality certified equipment. A proposed modification of the estimation method enables simplification of the required equipment, while offering important information to the pilot.https://www.mdpi.com/2226-4310/10/3/315general aviation aircraftangle of attack estimationsynthetic sensorsflight testflight simulator test
spellingShingle Marin Ivanković
Milan Vrdoljak
Marijan Andrić
Hrvoje Kozmar
Angle-of-Attack Estimation for General Aviation Aircraft
Aerospace
general aviation aircraft
angle of attack estimation
synthetic sensors
flight test
flight simulator test
title Angle-of-Attack Estimation for General Aviation Aircraft
title_full Angle-of-Attack Estimation for General Aviation Aircraft
title_fullStr Angle-of-Attack Estimation for General Aviation Aircraft
title_full_unstemmed Angle-of-Attack Estimation for General Aviation Aircraft
title_short Angle-of-Attack Estimation for General Aviation Aircraft
title_sort angle of attack estimation for general aviation aircraft
topic general aviation aircraft
angle of attack estimation
synthetic sensors
flight test
flight simulator test
url https://www.mdpi.com/2226-4310/10/3/315
work_keys_str_mv AT marinivankovic angleofattackestimationforgeneralaviationaircraft
AT milanvrdoljak angleofattackestimationforgeneralaviationaircraft
AT marijanandric angleofattackestimationforgeneralaviationaircraft
AT hrvojekozmar angleofattackestimationforgeneralaviationaircraft