Check out Junkers F 13 Floatplane Low-poly 3D model on CGTrader for $15. High-quality mesh by Helijah: 28000 polys, 30150 vertices. Textured, UV Mapped.
STL (Stereolithography, filesize: 2.38 MB), OBJ (OBJ, filesize: 3.77 MB), OTHER (Other, filesize: 5.8 MB), BLEND (Blender, filesize: 8.52 MB), FBX (Autodesk FBX, filesize: 1.53 MB), GLTF (glTF, filesize: 4.81 MB), PNG (PNG, filesize: 3.71 MB)