AGARD-B wind tunnel model

It is obvious that the specified radius can not be applied near the wingtips, or large deformations in the plan form of the wing would occur.

In order to reduce the scatter of results, in some wind tunnel facilities the model was tested with boundary layer transition trips near the leading edges of the wing and the nose of the body.

In some wind tunnel laboratories, AGARD-B was tested in non-standard configurations, e.g. as a half-model (half-span model).

Test results are most often presented in the form of nondimensional aerodynamic coefficients in the wind axes system.

equal to 4√3D/3 while the reference length for the yawing and rolling moment coefficients Cn and Cl is the wing span (Bref = 4 D).

Some laboratories have selected to test the AGARD-B standard model for periodic checkouts of the quality of measurements in their wind tunnels.

The existence of the tail generally makes this model more sensitive than AGARD-B to flow curvature in the wind tunnel test section.

[2][9] AGARD-C is primarily used in the transonic wind tunnels and the database of published test results is somewhat smaller than the one for the AGARD-B model.

In order to reduce cost and produce more versatile wind tunnel models, actual designs of AGARD-B and AGARD-C are sometimes realized as an AGARD-B configuration to which a body segment with the T-tail can be attached at the rear end to form the AGARD-C configuration.