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For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long.
NACA experience provided a model for World War II research, the postwar government laboratories, and NACA's successor, the National Aeronautics and Space Administration (NASA). NACA also participated in development of the first aircraft to fly to the "edge of space", North American's X-15. NACA airfoils are still used on modern aircraft.
The NACA cowling enhanced speed through drag reduction while improving engine cooling. The cowling consists of a symmetric, circular airfoil that is wrapped around the engine. In a normal planar airfoil, like a wing, the difference in airspeeds, and their associated changes in pressure, on the top and bottom surfaces, enhances lift.
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... Wing area: 161.5 sq ft (15.00 m 2) Airfoil: root: NACA 23015; tip: NACA ...
Drag and lift coefficients for the NACA 63 3 618 airfoil. Full curves are lift, dashed drag; red curves have R e = 3·10 6, blue 9·10 6. Coefficients of lift and drag against angle of attack. Curve showing induced drag, parasitic drag and total drag as a function of airspeed. Drag curve for the NACA 63 3 618 airfoil, colour-coded as opposite plot.
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... Wing area: 225.8 sq ft (20.98 m 2) Airfoil: NACA 23018 (root) NACA 23015 (tip)
Streamlines around a NACA 0012 airfoil at moderate angle of attack. A foil generates lift primarily because of its shape and angle of attack.When oriented at a suitable angle, the foil deflects the oncoming fluid, resulting in a force on the foil in the direction opposite to the deflection.
Robert T. Jones, (May 28, 1910 – August 11, 1999), was an American aerodynamicist and aeronautical engineer for NACA and later NASA. [1] He was known at NASA as "one of the premier aeronautical engineers of the twentieth century". [2]