This is unit #101 which consists of the rudder and stern assembly that is being connected to the hull. It takes three orchestrated huge cranes that move slowly and carefully to get it into place. (Note) if you go back and check out posts #s 46,47 & 48 you can see images of the rudder and stern assembly being constructed. Below are some images of the process.
An inside view…
Next two images show some of the process of securing the new module to the hull.
And there you go smooth and safe.