Check out Stinson A1 Trimotor 3D model on CGTrader for $79. High-quality mesh by chipbasschao: 48470 polys, 30560 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 56.4 MB), 3DS (3D Studio, filesize: 28.2 MB), C4D (Cinema 4D, filesize: 28.2 MB), DAE (Collada, filesize: 28.2 MB), FBX (Autodesk FBX, filesize: 28.2 MB), LWO (Lightwave, filesize: 28.2 MB)