# aerodynamic chord

## aerodynamic chord

[‚e·ro·dī′nam·ik ′kȯrd]
(aerospace engineering)
A straight line intersecting or touching an airfoil profile at two points; specifically, that part of such a line between two points of intersection.
References in periodicals archive ?
In the calculation, a half of the whole area being 245[m.sup.2] and the mean aerodynamic chord length being 12.94 m was taken for reference purposes.
The lift coefficient are evaluated at freestream V = 30 m/s, corresponding to a Reynolds number, Re, of 2.65[e.sup.5] based on the mean aerodynamic chord. Velocity-in and pressure-out boundary conditions are defined on the far-field planes of the computational flow field.
Generally, the position of aircraft center of gravity is defined as a percentage of mean aerodynamic chord length:
An airplane's forward and aft CG limits may be represented by their position relative to and as a percentage of the wing chord (the imaginary line from the leading edge to trailing edge of airfoil, also known as the mean aerodynamic chord).
Thus using equation (2) we determined the aerodynamic chord length of the vertical axis wind turbine blades.
Installation is straightforward as long as the probe is installed outside of the propeller arc, in undisturbed air and placed between 10 to 90 percent of the wing's main aerodynamic chord.
With the airplane leveled as per installation instructions, the installer can calibrate the adjustable leading-edge transducer to optimum placement in relation to the wing mean aerodynamic chord. Flying the SCx We took off from my home airport, Somerset Airport in Bedminster, N.J., which has a 2,700-foot runway.
where the control inputs are fuel-to-air ratio <p, elevator deflection [[delta].sub.e], and canard deflection [[delta].sub.c]; [bar.q], S, [z.sub.T], [bar.c], [M.sub.[infinity]] denote dynamic pressure, reference area, thrust moment arm, mean aerodynamic chord, and Mach number; [DELTA][[tau].sub.1] and [DELTA][[tau].sub.2] are the forebody turn angle and the aftbody vertex angle which are linear mapping of elastic states [[eta].sub.i].
Model parameters Data Reference area ([m.sup.2]) 0.3926 Mean aerodynamic chord (m) 0.3445 Semispan (m) 1.2857 Table 2: The modal circular frequencies (unit: rad/s).
[C.sub.*] is unitless aerodynamic coefficient and [bar.c] denotes the mean aerodynamic chord.
where [bar.q] denotes the dynamic pressure, S denotes the reference wing area, b denotes the wing span, and [bar.c] denotes the mean aerodynamic chord. [mathematical expression not reproducible] are control surface deflections.
Symbols Value Dimension Illustration m 7310 Kg Aircraft mass S 23.0 [m.sup.2] Reference area h 7.15 m Wing span c 4.002 m Mean aerodynamic chord [I.sub.xx] 450 Kg x [m.sup.2] Inertia moment around x-axis [I.sub.yy] 4400 Kg x [m.sup.2] Inertia moment around y-axis [I.sub.zz] 4700 Kg x [m.sup.2] Inertia moment around z-axis [I.sub.xz] 85.37 Kg x [m.sup.2] Product of inertia

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