We humans can not survive without all the technologies regardless how absurd they are. This is the the dirty jobs most can careless about it but everyone lives on it. As a former Motorcycle Mechanic I look at this engine and these Engineers in awe! The 7.5 ton crankshaft required it's own track network inside the vessel simply to be able to move! I was especially pleased to see that the Crew taking the crankshaft aboard the vessel were all wearing their fall arrest systems and PPE right next to the deck opening which they were guiding the crankshaft down! These Engineers are truly remarkable people, having to work with engines at this scale throws up some astonishing challenges! This may be off topic, but I think someone might find it interesting. Device to end the creation of Nuclear waist. Electric Generator Design that's powered by it's self and perpetuates more electrical current then is needed for it to run continuously on it's own. Step 1: calculate how much energy you need pumped into an electric motor to make a vertically positioned circular platter with magnets in-bedded horizontally around it's left side and right side (so there pushing force is pushing out sideways relative to the vertically spinning disc) to spin as fast as you need it to. Also better to make sure these magnets are shielded around their sides and back with metal that has high permeability so the magnetic field they are emitting is focused fully out sideways. Step 2: Calculate how many sets of copper coils you need to be interacting with magnetic fields to achieve this and to perpetuate more electrical current flow then is needed. Step 3: Build a round horizontally positioned platter covered in all these copper coils pointed down that does not move (Is stationary) Step 4: build a round platter covered in powerful magnets pointed up that can spin and place it directly under platter with hanging copper coils. Step 5: Position the vertical platter that is motorized close to the horizontally positioned platter covered in magnets pointing up so that when the vertically positioned platter spins the in-bedded horizontally positioned magnetic fields slam sideways against the edge of the horizontally positioned platter causing it to spin. Step 6: Make sure enough of the copper coils are feeding their electrical current into the electric motor and the rest of the copper coils are linked into a set of rechargeable Battery's placed in the closest most convenient spot. Step 7: Build a duplicate setup of horizontally positioned discs with hanging copper coils and disc with upwards facing magnets and assuming the first set of discs are positioned to the front left side of vertical spinning disc, position the other duplicate structures to the front right, the back left and the back right of the vertically positioned motorized disc. As the vertically positioned motorized disc spins the horizontally in-beaded magnets will now hit into all 4 horizontally positioned discs causing them to spin. so you will effectively be using the spin of one disc powered by one electric motor to spin 4 constructs that are each generating electrical current. now build this whole setup multiple times over and use the current perpetuated by it to power up scaled electromagnetic generators that are equal to or more powerful than the ones used in a nuclear power plant. You will now have a device that is self perpetuating off of it's own electrical current perpetuation and no nuclear waist to worry about.