Reflecting recent research in the area of aerodynamic efficiency for various fixed-wing, flapping wing, and rotary wing concepts, this book describes the progress of researchers from North America, Europe, and Japan. Chapters discuss micro air vehicle aerodynamics, higher-roder boundary layer formulation, airfills for use at ultra-low Reynolds numbers, wind tunnel tests, acoustic disturbances, numerical optimization, unsteady stalling characteristics, thrust and drag in flying birds, the efficiency of flapping flight, aerodynamic characteristics of wings, nonlinear aeroelastic models, eler solutions, wing and propeller constructions, mesoscale flight, the Black Widow micro air vehicle, and optic flow sensors for MAV navigation. Annotation c. Book News, Inc., Portland, OR (booknews.com)