Check out Current Tiltrotor Aircraft 3D model on CGTrader for $4. High-quality mesh by AndrewC: 233000 polys, 232000 vertices. PBR, Textured, UV Mapped.
FBX (Autodesk FBX, filesize: 15.9 MB), TEXTURES (Textures, filesize: 6.53 MB), OTHER (Other, filesize: 25.6 MB)