CH-47 Chinook Low-poly 3D model is available on CGTrader for $149. Original author: ryzhkov-3d-models. Specs: 35807 polys, 36031 verts.
BLEND (Blender, filesize: 1.09 MB), OBJ (OBJ, filesize: 812 KB), FBX (Autodesk FBX, filesize: 1.18 MB), MAX (Autodesk 3ds Max, filesize: 1.57 MB), TEXTURES (Textures, filesize: 353 MB), PSD (Adobe Photoshop, filesize: 353 MB)