# Università degli Studi di Napoli "Parthenope"

## Teaching schedule

2018/2019
Belonging course:
Course of Master's Degree Programme on SCIENCES AND TECHNOLOGIES OF NAVIGATION
Disciplinary sector:
FLIGHT MECHANICS (ING-IND/03)
Language:
Italian
Credits:
9
Year of study:
1
Teachers:
Cycle:
First Semester
Hours of front activity:
72

Italian

### Course description

The course goal is to inform the students about the motions of the fixed-wing aircrafts, around their center of gravity, studying the various topics related to static and dynamic stability.

Knowledge and understanding: The student must demonstrate knowledge and understanding of the fundamentals of static and dynamic stability of fixed-wing aircrafts, dynamic systems with n degrees of freedom, transformation in the Laplace domain; eigenvalues and eigenvectors.
Ability to apply knowledge and understanding: the student must demonstrate the ability to use their acquired knowledge to study and solve topics and problems related to stability, maneuverability and control of fixed-wing aircrafts.

Autonomy of judgement: the student should be able to assess independently the results coming from his own commitment in the study of the subject.
Communication skills: the student shoul be able to draw up a report about the stability characteristics of a fixed wing aircraft and document his elaborations.
Learning skills: Students must be able to update his knowledge and independently deepen topics about flight dynamics.

### Prerequisites

The students need to know the principles of Flight Mechanics first module, Mathematics, Physics, Computer Science, Methods in Mathematics and a good knowledge of "Matlab"e “Simulink”.

### Syllabus

Summary of the main topics related to aircraft performance: level flight, climbing flight, gliding flight, maneuvering flight, load factor, turning flight, pull-up maneuver, take off, landing, range and endurance.
Static stability and control - Longitudinal stability and control with stick-fixed: contribution of the airplane parts; rear neutral point of stability - Longitudinal control - Thrust effects - Center of gravity range - Longitudinal static stability and control with stick free - Hinge moment and floating - Rear neutral point of stability with stick free - The trim-tab - Stick force and its reduction - Maneuvering flight
Latero-directional static stability and control - Contribution of the airplane parts - Thrust effects - The directional control - Lateral Stability with stick-fixed - The lateral control - Approximate equations of latero-directional motion - Directional Stability with stick-free - Stick force and ailerons balancing.
Airplane equations of motion - Axes reference systems - Euler' angles - coordinate systems transformation - Equations of motion linearization - Longitudinal and latero-directional aerodynamic derivatives. 5) Longitudinal dynamics - Characteristic equation in longitudinal plane and system eingenvalues - Longitudinal stability criteria - Phugoid and short-period modes - Lateral-directional stability criteria:spiral, divergent, dutch-roll modes - Root Locus

Summary of the main topics related to aircraft performance: level flight, climbing flight, gliding flight, maneuvering flight, load factor, turning flight, pull-up maneuver, take off, landing, range and endurance (1 CFU: 8 hours)
2) Static stability and control - Longitudinal stability and control with stick-fixed: contribution of the airplane parts; rear neutral point of stability - Longitudinal control - Thrust effects - Center of gravity range - Longitudinal static stability and control with stick free - Hinge moment and floating - Rear neutral point of stability with stick free - The trim-tab - Stick force and its reduction - Maneuvering flight(2 CFU: 16 hours)
3) Latero-directional static stability and control - Contribution of the airplane parts - Thrust effects - The directional control - Lateral Stability with stick-fixed - The lateral control - Approximate equations of latero-directional motion - Directional Stability with stick-free - Stick force and ailerons balancing.(1 CFU: 8 hours)
4) Airplane equations of motion - Axes reference systems - Euler' angles - coordinate systems transformation - Equations of motion linearization - Longitudinal and latero-directional aerodynamic derivatives. ( 2CFU: 16 hours)
5) Longitudinal dynamics - Characteristic equation in longitudinal plane and system eingenvalues - Longitudinal stability criteria - Phugoid and short-period modes - Lateral-directional stability criteria:spiral, divergent, dutch-roll modes - Root Locus (3 CFU: 24 hours)

### Teaching Methods

Frontal lessons (7 CFU: 56 hours); exercises and laboratory (2CFU: 16 hours)

### Textbooks

1) From the book: "Fondamenti di Aeronautica Generale" by Valentino Losito, Lecture notes by Giuseppe Del Core, available from himself
2) Lecture notes by Giuseppe Del Core, available from himself
3) Lecture notes by Giuseppe Del Core, available from himself
4) Lecture notes by Giuseppe Del Core, available from himself
5) Lecture notes by Giuseppe Del Core, available from himself.

### Learning assessment

The examination consists of a oral test in which the student introduces and discusses a paper prepared by himself, containing the analysis of an aircraft stability ducted by matlab and simulink. Other questions about the main topics of the course follow.