airfoil section

  • 1 Airfoil — An airfoil (in American English) or aerofoil (in British English) is the shape of a wing or blade (of a propeller, rotor or turbine) or sail as seen in cross section. An airfoil shaped body moved through a fluid produces a force perpendicular to… …

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  • 2 airfoil/aerofoil — A body of such shape that the force exerted on it by its motion through a fluid has a larger component normal, or perpendicular, to the direction of the motion than along the direction of the motion. This force is in the form of lift or thrust. A …

    Aviation dictionary

  • 3 airfoil —   n. section through aircraft wing, etc …

    Dictionary of difficult words

  • 4 Supercritical airfoil — it has since been mainly applied to increase the fuel efficiency of many high subsonic aircraft. Research in 1940 by DVL s K. A. Kawalki led to subsonic profiles very similar to the supercritical profiles, which was the basis for the objection in …

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  • 5 axis of an airfoil — a line perpendicular to an airfoil section …

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  • 6 NACA airfoil — Profile geometry – 1: Zero lift line; 2: Leading edge; 3: Nose circle; 4: Camber; 5: Max. thickness; 6: Upper surface; 7: Trailing edge; 8: Camber mean line; 9: Lower surface …

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  • 7 Lift coefficient — The lift coefficient ( or ) is a dimensionless coefficient that relates the lift generated by a lifting body, the dynamic pressure of the fluid flow around the body, and a reference area associated with the body. A lifting body is a foil or a… …

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  • 8 Stall (flight) — For other uses, see stall. In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is… …

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  • 9 Lift-induced drag — In aerodynamics, lift induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting… …

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  • 10 Mitchell Nimbus — Nimbus Role Glider National origin United States Designer Don Mitchell Introduction 1956 (Nimbus III) Status Production complete The Mitchell Nimbus is a series of American, single seat, high wing gliders that was designed by Don Mitchell in …

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  • 11 Leading edge slot — The leading edge slot is an aerodynamic feature of the wing of some airplanes to reduce the stall speed and promote good low speed handling qualities. A leading edge slot is a span wise gap in each wing, allowing air to flow from below the wing… …

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  • 12 no-lift angle — The angle between the chord of an airfoil and the relative wind that caused the airfoil to produce no lift. The no lift direction is the direction of airflow relative to an airfoil section or wing for which lift would be zero on that section of… …

    Aviation dictionary

  • 13 mean chord — i. The chord of an imaginary wing of a constant section having the same force vectors under all conditions as those of the actual wing. That chord of an airfoil is equal to the sum of all the airfoil’s chord lengths divided by the number of chord …

    Aviation dictionary

  • 14 Cranwell CLA.3 — CLA.3 Role Racing aircraft National origin United Kingdom Manufacturer The Cranwell Light Aeroplane club Designer Nicholas Comper First flight mid July 1925 Retired 1929 …

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  • 15 Theodore Theodorsen — Infobox Person name = Theodore Theodorsen image size = 140px birth date = birth date|1897|01|8 birth place = Sandefjord, Norway flagicon|Norway death date = 1978 death place = Long Island, New York, United States flagicon|USA occupation =… …

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  • 16 lift — i. That component of the aerodynamic forces acting on the wing or airfoil section that opposes gravity. It is perpendicular to the flight path or free stream flow. Simply put, it is the difference between the static pressure on the airfoil lower… …

    Aviation dictionary

  • 17 Naval Aircraft Factory PN — PN Naval Aircraft Factory PN 12 Role Patrol Flying Boat Manufacturer …

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  • 18 drag — i. That component of aerodynamic forces acting on the wing or the airfoil section, which is parallel and opposite to the relative airflow. The sources of drag are the pressure distribution patterns over the airfoil, called induced drag; the skin… …

    Aviation dictionary

  • 19 leading-edge stagnation point — That point on the leading edge of an airfoil at which the airflow actually comes to rest relative to the airfoil. At this point, the airflow divides to pass over and under the airfoil section …

    Aviation dictionary

  • 20 symmetrical biconvex wing — An airfoil section that is a compromise between the optimum supersonic and subsonic requirements; it has a low thickness/chord ratio for high speed flight and at the same time has curves for low speed work. This type of airfoil has very little… …

    Aviation dictionary

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