Boundary layers: similarity, Blasius and momentum integral methods. Ideal Flows: Kelvin's circulation theorem; complex potential; superposition; Kutta-Joukowski; thin airfoils; finite wings; lifting lines. Gas dynamics: sound waves; normal and oblique shocks; Prandtl-Meyer expansion; quasi 1D flows; converging-diverging nozzles; choked flows; diffusers; Rayleigh line and Fanno line flows.