the model was created as a workshop when studying blender. 2.5 months were spent. small elements are not drawn: rings-ties of wiring, etc. all the elements are created in a blender from photos and videos in the public domain. what is visible is simplified and drawn. all elements are separate, except for groups of bolts. the model is not animated, not rig. it is assembled without the use of third-party images, textures and additional files.