Anti land base, fixed on constant ground or ship deck, long range of 15 to 20 km
use the f3d extension to get similar results as the photos
STL (Stereolithography, filesize: 6.46 MB), FBX (Autodesk FBX, filesize: 68.3 MB), SKP (Sketchup, filesize: 4.16 MB), 3DS (3D Studio, filesize: 19.4 MB), DAE (Collada, filesize: 7.39 MB), F3D (Autodesk Fusion 360, filesize: 2.35 MB)