Bell UH-1 Iroquois 3D model purchase 3D model is available on CGTrader for $33. Original author: Hafcoy.
STL (Stereolithography, filesize: 2.32 MB), OBJ (OBJ, filesize: 13.9 MB), BIP (KeyShot, filesize: 5.07 MB), FBX (Autodesk FBX, filesize: 2.63 MB), GLTF (glTF, filesize: 4 MB)