This document discusses time-of-flight diffraction (TOFD) examples using 2D and 3D models. It shows a 2D TOFD example with a 4mm defect and 15mm plate, identifying the longitudinal, backwall, shear, and tip diffraction wave modes received. It also provides runtime and memory comparisons for 2D versus 3D TOFD models, showing increased elements, runtime, and memory needs for 3D. Additional examples include using TOFD to inspect a turbine blade and blisk component.