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The angle between the wing's chord line and the relative wind. Increasing AOA increases lift until the critical angle is reached. Stall (Desplome):

Un estrechamiento en el flujo de aire provoca un aumento de velocidad y una caída de presión, concepto clave para el diseño de conductos y perfiles aerodinámicos. Las Cuatro Fuerzas del Vuelo

Searching for "aerodinámica básica" (basic aerodynamics) provides several high-quality academic and technical PDF resources in Spanish. Below are the most relevant pieces of documentation ranging from introductory manuals to university-level course notes. Recommended PDF Resources Manual de Aerodinámica Básica - UDI

A surface designed to obtain a useful reaction (lift) from the air through which it moves. Argentina.gob.ar 2. The Four Forces of Flight Flight is governed by the balance of four primary forces: Lift (Sustentación):