Looking for Fairey Rotodyne? Get this 3D model from chipbasschao via CGTrader for $89. Technical specs: 83410 polygons, 59634 vertices.
STL (Stereolithography, filesize: 18.4 MB), OBJ (OBJ, filesize: 18.4 MB), 3DS (3D Studio, filesize: 18.4 MB), C4D (Cinema 4D, filesize: 18.4 MB), DAE (Collada, filesize: 18.4 MB), DXF (DXF, filesize: 18.4 MB), FBX (Autodesk FBX, filesize: 18.4 MB)