Cruise ship extension: just cut it in half

[gildasd]

On one of my previous ships, a whole main engine block split in two due to a defective casting...
A big chain was wrapped around it, tensioned with a hydraulic chain block and lifted out.
This rather “easy” on dregers as the accommodation innot over the engine room.

Back to the main subject, SI vs the Empire... Kidding.

When I 1st drydocked, I was amazed that the yard had cut out a large opening on the bottom/side of the vessel within a few hours, installed some stairs and used it as workers access!

[SeanB]

Easy to cut holes in a ship, as most docks are very well equipped with the good old fashioned gas axe, in sizes that range from small (only going to cut a quarter inch of steel) and going up from there to ones that require the use of a crane to move the cutting head, and where the gas supply comes from cryogenic tanks and a vapouriser, and where you burn a cut through 10 inches of steel without any problem. Cutting through the typical half inch single wall steel of a ship hull is not something they are inexperienced with, and there are a corresponding team of welders who will come and fix the patch back in afterwards using a really big arc welder, and a whole load of welding rods, or a roll of welding wire and shield gas to fill the gap up.

Of course you then get the guys who come, remove all people from the area, put up the barrier tape and signs and then bring in the Cobalt60 gamma source to check the welds afterwards. There are quite a few times those sources have been stolen from the yards by those who are after the stainless steel of the housing, and who are blissfully unaware of the meaning of the symbols on the container and the warnings. that is why you find scrapyards have Geiger counters at the depots, to find any of those contaminated loads. Bad day for all concerned if that detector reaches the trip level, there is a pile of bovine product that just gets deeper as time goes on. Nice area in Brazil, that is a park now in a poor area, where the one was opened.

[firewalker]

I wonder for the method of choice to cut it in half. Diamond cable? 

Alexander.

[Lord of nothing]

No Hundred Indian with a hacksaw. 

[Cerebus]

Wire size in mm/sq why not just give me the dia. that way I can just measure it.   

Wire sizes is a poor one to pick on, the Imperial/customary units are not exactly an example of clarity: AWG, SWG, circular mils?

Most metrique wires sizes are in perfectly normal diameter measurements, except electrical ones where mm² is used as it's the area that you want to know first and foremost.