Robot helicopter. 3d model Robot helicopter. The file is created in Blender 2.79 and can be opened in any compatible packages. Archive includes files with the extensions .blend, .fbx, .ply, .x3d, .obj. Render Blender 2.79 Cycles. Polygons:156,992 Vertices:157,153 Using: Open the file by double clicking the left mouse button. Thanks to everyone who watches, comments and buys my models, it's very important for me! Thanks to all.