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A Study of the Dynamic Stability Characteristics of HANSA-3 Trainer Aircraft

SM Kannan

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Abstract

This report presents the results of a study of the dynamic stability characteristics of a trainer aircraft named HANSA-3 under design and prototypeproduction13; at NAL. The study has been carried out for five different flight speeds, between the minimum speed and maximum allowable speed for most-forward, normal and most-aft C.G. locations each at three altitudes, namely, sea level, 5000 ft and 10000 ft. Longitudinal and lateral stability derivatives are evaluated and the dynamic stability characteristics of the different modes of motion are computed. The aircraft is found to have highly satisfactory stability characteristics in the most13; important and critical longitudinal short period and the lateral-directional Dutch roll modes. The aircraft meets the U.S. FAR-23 stipulations for dynamic stability,13; appropriate to this class of aircraft.

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This report presents the results of a study of the dynamic stability characteristics of a trainer aircraft named HANSA-3 under design and prototypeproduction13; at NAL. The study has been carried out for five different flight speeds, between the minimum speed and maximum allowable speed for most-forward, normal and most-aft C.G. locations each at three altitudes, namely, sea level, 5000 ft and 10000 ft. Longitudinal and lateral stability derivatives are evaluated and the dynamic stability characteristics of the different modes of motion are computed. The aircraft is found to have highly satisfactory stability characteristics in the most13; important and critical longitudinal short period and the lateral-directional Dutch roll modes. The aircraft meets the U.S. FAR-23 stipulations for dynamic stability,13; appropriate to this class of aircraft.

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Available abstract

This report presents the results of a study of the dynamic stability characteristics of a trainer aircraft named HANSA-3 under design and prototypeproduction13; at NAL. The study has been carried out for five different flight speeds, between the minimum speed and maximum allowable speed for most-forward, normal and most-aft C.G. locations each at three altitudes, namely, sea level, 5000 ft and 10000 ft. Longitudinal and lateral stability derivatives are evaluated and the dynamic stability characteristics of the different modes of motion are computed. The aircraft is found to have highly satisfactory stability characteristics in the most13; important and critical longitudinal short period and the lateral-directional Dutch roll modes. The aircraft meets the U.S. FAR-23 stipulations for dynamic stability,13; appropriate to this class of aircraft.

Key concepts: Stability (learning theory), Longitudinal static stability, Stability derivatives, Engineering, Marine engineering, Control theory (sociology), Aerospace engineering, Aerodynamics

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