The large step of the three scale shockwave set, for heavy slams and area detonations. The crest fin count rises from ten to fourteen so the crest stays dense at the larger diameter rather than the mesh being a plain uniform scale of the medium ring. Bounding size 1.60 by 0.35 by 1.61 m, metres, +Y up, +Z forward. Origin: ground contact at y=0. The effect emits from the ground plane and its lowest geometry sinks 0.009 m under that plane, so the mesh is settled onto y=0 and the emission plane sits 0.009 m up. Opaque solid geometry throughout: this pack uses no alpha blending and no transmission, so the silhouette and the emissive material carry the read. Static mesh with no animation clip, no skinned rig, no collision and no navigation data.