Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes

The goal of this paper is to conduct a study on the flying and usability attributes of a glider-type aircraft used for instruction. For the development of this project, we propose a dynamic model where we introduce small disturbances to calculate the longitudinal trim state in subsonic flight condit...

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Main Authors: Yeinson Alfonso Castellanos Sanabria, German Wedge Rodríguez Pirateque
Format: Article
Language:English
Published: Escuela de Posgrados de la Fuerza Aérea Colombiana 2019-11-01
Series:Ciencia y Poder Aéreo
Subjects:
Online Access:https://doi.org/10.18667/cienciaypoderaereo.639
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author Yeinson Alfonso Castellanos Sanabria
German Wedge Rodríguez Pirateque
author_facet Yeinson Alfonso Castellanos Sanabria
German Wedge Rodríguez Pirateque
author_sort Yeinson Alfonso Castellanos Sanabria
collection DOAJ
description The goal of this paper is to conduct a study on the flying and usability attributes of a glider-type aircraft used for instruction. For the development of this project, we propose a dynamic model where we introduce small disturbances to calculate the longitudinal trim state in subsonic flight conditions. Using longitudinal trim data, we showed the linearized equations of motion to find the dimensionless and dimensional numerical values for aerodynamic stability and control derivatives along the longitudinal and lateral-directional axes. After that, we found the characteristic transfer functions using disturbances and accelerations for the sake of the best glide ratio speed, in order to calculate the aircraft responses in aerodynamic controls. Finally, we got the static and dynamic stability responses; and so, we analyzed the flying and usability attributes according to the standardized requirements. The results obtained are shown using aerodynamics coefficients, MatLab® graphs (step, impulse, ramp, Bode diagram and Root place), the stability modes, the rudder lift curve slope, the control fixed neutral point and the maximum permissible stability margin. In this way, we showed the calculation of stability, influencing factors and its effects on the flying and usability attributes of a glider-type aircraft.
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spelling doaj.art-9daf2335c0074f23bdd23de95a8670672022-12-21T20:04:34ZengEscuela de Posgrados de la Fuerza Aérea ColombianaCiencia y Poder Aéreo1909-70502389-94682019-11-01142162179https://doi.org/10.18667/cienciaypoderaereo.639Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction PurposesYeinson Alfonso Castellanos Sanabria0German Wedge Rodríguez Pirateque1Fundación Universitaria Los LibertadoresCentro Tecnológico de Innovación Aeronáutica, CETIA - JEAThe goal of this paper is to conduct a study on the flying and usability attributes of a glider-type aircraft used for instruction. For the development of this project, we propose a dynamic model where we introduce small disturbances to calculate the longitudinal trim state in subsonic flight conditions. Using longitudinal trim data, we showed the linearized equations of motion to find the dimensionless and dimensional numerical values for aerodynamic stability and control derivatives along the longitudinal and lateral-directional axes. After that, we found the characteristic transfer functions using disturbances and accelerations for the sake of the best glide ratio speed, in order to calculate the aircraft responses in aerodynamic controls. Finally, we got the static and dynamic stability responses; and so, we analyzed the flying and usability attributes according to the standardized requirements. The results obtained are shown using aerodynamics coefficients, MatLab® graphs (step, impulse, ramp, Bode diagram and Root place), the stability modes, the rudder lift curve slope, the control fixed neutral point and the maximum permissible stability margin. In this way, we showed the calculation of stability, influencing factors and its effects on the flying and usability attributes of a glider-type aircraft.https://doi.org/10.18667/cienciaypoderaereo.639dynamicsflying and handling qualitiesstabilitystability modesstatic
spellingShingle Yeinson Alfonso Castellanos Sanabria
German Wedge Rodríguez Pirateque
Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes
Ciencia y Poder Aéreo
dynamics
flying and handling qualities
stability
stability modes
static
title Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes
title_full Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes
title_fullStr Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes
title_full_unstemmed Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes
title_short Study of The Flying and Handling Qualities of a Glider-Type Aircraft for Instruction Purposes
title_sort study of the flying and handling qualities of a glider type aircraft for instruction purposes
topic dynamics
flying and handling qualities
stability
stability modes
static
url https://doi.org/10.18667/cienciaypoderaereo.639
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AT germanwedgerodriguezpirateque studyoftheflyingandhandlingqualitiesofaglidertypeaircraftforinstructionpurposes