$69 Fokker Dr-1 Triplane 3D model by chipbasschao. Available on CGTrader with 45244 polys and 30816 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 16.8 MB), OBJ (OBJ, filesize: 16.8 MB), 3DS (3D Studio, filesize: 16.8 MB), C4D (Cinema 4D, filesize: 16.8 MB), DAE (Collada, filesize: 16.8 MB), FBX (Autodesk FBX, filesize: 16.8 MB), LWO (Lightwave, filesize: 16.8 MB)