Early testing of airfoil design in a wind tunnel. series of airfoils emerged, and there was reported wind tunnel data for the U.S.A. Related Article – Airline Transport Pilot Certificate (ATP): 4 Things You Need To KnowĪfter the release of the report, the U.S.A. Multiple brass airfoil models, with a span of 18 inches and a chord of 3 inches in a wide tunnel, were tested. 18 titled “Aerofoils and Aerofoil Structural Combinations,” was released.Īccording to the authors, mathematical theory still hadn’t been applied to airfoil design.Īt that point, the work was mostly trial and error. The National Advisory Committee on Aeronautics (NACA) was created in 1915, and one of the main goals of the members was to create better airfoils.Īccording to the first NACA Annual Report, there was a need for “the evolution of more efficient wing sections of practical form, embodying suitable dimensions for an economical structure, with moderate travel of the centre of pressure and still affording a large angle of attack combined with efficient action.” In the United States, many of the American planes used RAF sections, and others relied on a shape designed by Frenchman Alexandre Gustave Eiffel, the designer of the Eiffel Tower. Related Article – Instrument Proficiency Check (IPC): 4 Things You Need To Know Principles of airfoil design. One type of airfoil, called the RAF 6, was used on World War 1 aircraft. Some earlier work was done by the British government at the National Physical Laboratory (NPL), and it resulted in a series of Royal Aircraft Factory airfoils. Prior to World War 1, there was no standardized airfoil that was used on multiple planes, and not many people were doing research to create one. Some of the first research on curvatures or the camber of a wing, known as an airfoil, was conducted by the famous Wright brothers.Īs powered flight was in its infancy, airfoils were traditionally hand-built for each aircraft.
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