The fundamental concepts, and approaches of aerospace engineering, are highlighted through lectures on aeronautics, astronautics, and design. Atmosphere and Basic Aerodynamics Temperature, Pressure and Altitude, Density, Humidity, Absolute Humidity, Relative Humidity and the Dew Point, International Standard Atmosphere (ISA), Aerodynamics, Airfoils , Airfoil, Up wash and Downwash, turbulence, Stagnation Point and Stagnation Pressure Layer, Laminar and Turbulent, Flow Free and Relative Flow/ Wind, Angle of Attack, Angle of Incidence, Wing Area Shape of the Airfoil, Nomenclature, Thickness/Chord Ratio, Angle of Attack, The Wing Shape, Wing Span Aspect Ratio, Wind Loading Root Chord, Tip Chord, Swept Wing, Sweep Angle, Mean Aerodynamic Chord.