Weapons Propulsion Test Platform Free 3D model is available on CGTrader for free. Original author: umd223.
STL (Stereolithography, filesize: 111 KB), OBJ (OBJ, filesize: 86.5 KB), 3DS (3D Studio, filesize: 91.7 KB), FBX (Autodesk FBX, filesize: 138 KB), IGE (IGES, filesize: 298 Bytes), MAX (Autodesk 3ds Max, filesize: 136 KB), SKP (Sketchup, filesize: 281 KB), OTHER (Other, filesize: 87.9 KB)