Including 6 airships design. They are all designed by CAD software or sketchup. They are all triangle meshed.The formats are very rich.
STL (Stereolithography, filesize: 15.7 MB), OBJ (OBJ, filesize: 50.2 MB), 3DM (Rhinoceros 3D, filesize: 18.3 MB), BIP (KeyShot, filesize: 11 MB), FBX (Autodesk FBX, filesize: 55.9 MB), STP (STEP, filesize: 68.8 MB), MA (Autodesk Maya, filesize: 157 MB), DAE (Collada, filesize: 172 MB), DXF (DXF, filesize: 22.7 MB), BLEND (Blender, filesize: 124 MB), GLTF (glTF, filesize: 27.2 MB), SKP (Sketchup, filesize: 48.2 MB), JPG (JPG, filesize: 10 MB), USD (USD, filesize: 3.74 MB)