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NACA cowling

Index NACA cowling

The NACA cowling is a type of aerodynamic fairing used to streamline radial engines for use on airplanes and developed by the National Advisory Committee for Aeronautics in 1927. [1]

18 relations: Aerodynamics, Aircraft fairing, Airplane, Cowling, Curtiss P-1 Hawk, Cylinder (engine), Cylinder head, Drag (physics), Fuel efficiency, Meredith effect, NACA duct, National Advisory Committee for Aeronautics, Radial engine, Smithsonian Institution, Streamliner, Theodore Theodorsen, Townend ring, Wright R-790 Whirlwind.

Aerodynamics

Aerodynamics, from Greek ἀήρ aer (air) + δυναμική (dynamics), is the study of the motion of air, particularly its interaction with a solid object, such as an airplane wing.

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Aircraft fairing

An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.

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Airplane

An airplane or aeroplane (informally plane) is a powered, fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller or rocket engine.

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Cowling

A cowling is the covering of a vehicle's engine, most often found on automobiles and aircraft.

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Curtiss P-1 Hawk

The P-1 Hawk (Curtiss Model 34) was a 1920s open-cockpit biplane fighter aircraft of the United States Army Air Corps.

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Cylinder (engine)

A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels.

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Cylinder head

In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block.

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Drag (physics)

In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.

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Fuel efficiency

Fuel efficiency is a form of thermal efficiency, meaning the ratio from effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work.

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Meredith effect

The Meredith effect is a phenomenon whereby the aerodynamic drag produced by a cooling radiator may be offset by careful design of the cooling duct such that useful thrust is produced.

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NACA duct

A NACA duct, also sometimes called a NACA scoop or NACA inlet, is a common form of low-drag air inlet design, originally developed by the U.S. National Advisory Committee for Aeronautics (NACA), the precursor to NASA, in 1945.

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National Advisory Committee for Aeronautics

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915, to undertake, promote, and institutionalize aeronautical research.

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Radial engine

The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel.

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Smithsonian Institution

The Smithsonian Institution, established on August 10, 1846 "for the increase and diffusion of knowledge," is a group of museums and research centers administered by the Government of the United States.

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Streamliner

A streamliner is a vehicle incorporating streamlining in a shape providing reduced air resistance.

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Theodore Theodorsen

Theodore Theodorsen (January 8, 1897 – November 5, 1978) was a Norwegian-American theoretical aerodynamicist noted for his work at NACA (the forerunner of NASA) and for his contributions to the study of turbulence.

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Townend ring

A Townend ring is a narrow-chord cowling ring fitted around the cylinders of an aircraft radial engine to reduce drag and improve cooling.

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Wright R-790 Whirlwind

The Wright R-790 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by Wright Aeronautical Corporation, with a total displacement of about and around.

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NACA cowl.

References

[1] https://en.wikipedia.org/wiki/NACA_cowling

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