UCK 441E - Flight Stability and Control

Course Objectives

• Aircraft flight stability and control is one of the basic necessary courses for teaching of an aeronautical engineering students.
• This subject is given to students after Aerodynamics, Flight Mechanics and
Automatic Control courses.
• Stability and control are among the most important aspects of the analysis and design of aircrafts.
• Analysis of flying and handling characteristics and successful design of automatic flight control systems.

Course Description

Introduction. Basic definitions of flight mechanics, control and control surfaces.
General structure of flight control systems. Aircraft static and dynamic stability and stability derivatives. Static longitudinal and lateral stability. Aircraft longitudinal and lateral dynamic equations. Nonlinear dynamic equations. Linearization of equations. Longitudinal and lateral transfer functions. Longitudinal modes of motion. Short and long period approximation. Transient response of aircraft dynamic. Basic concept of aircraft control systems. The types of autopilot. Autopilot design. Design of displacement autopilot by the Root Locus method. Inner and outer loop concepts. Pitch orientation control system. Root locus analysis. Acceleration control system. Matlab Simulink simulation of aircraft autopilots.