A Benchmark Airplane Model with Ducts

A recently introduced full-size airplane model is upgraded to encourage and support advances in computational electromagnetics. To increase the complexity of scattering problems defined using the model, surfaces covering the intake and exhaust entrances are removed and curved ducts are defined. The ducts are terminated at simple surfaces to reduce requirements on geometric tolerances, support additive manufacturing of scale models, and increase reproducibility of measurements and simulations. To facilitate the benchmarking of as many computational methods as possible, data are shared on a version-controlled online repository to include: (1) exterior surface (outer mold line) of the CAD model, including precise duct definitions, (2) triangular surface meshes of various resolutions, and (3) measured and predicted radar-cross-section data of scale models approximated as perfect electric conductors.