About that Boat - Noah's Ark

So...Too big or not too big, that is the question.

Construction logistics doesn't discredit the ark because we have clear evidence of massive workforces and coordinated construction in the ancient Egyptians and Chinese civilizations. It might be used to cast doubt on the story, but it doesn't DISPROVE anything.

Back to the A,B & C's.
Is the 150m wooden vessel a structural impossibility? So far this argument has been based on a perceived limit for sailing ships around 1900. But who says these ships define the limit for a wooden hull? They might define the limit for carvel planked hulls perhaps, but this is not the only way to build a vessel.

While you are on the right track regarding scale-up, using a ship hull as a simply supported beam is several orders of magnitude more severe than the American Bureau of Shipping rules regarding the maximum design wave bending moment. This is because waves are a distributed load.

So with this in mind, let's run the numbers for fun...Wood: Douglas Fir: Density approx 500 kg/m3
At Ark scale (scale=1), and using cubit of 0.5m,
A solid timber lump weighs 28125 tonnes, giving simply supported bending moment of 5.168e9 Nm. With a section modulus of b*d^2/6, you get Stress = 5.168e9/937.5 = 5.5e6Pa = 5.5MPa (800psi)Being well short of the 85MPa MOR (maximum failure), we could take it further (without safety factor applied) like this...To get bending stress of 85PMa, scale=15.4, Length of block 2313m, breadth 385m, height 231m, mass 103 million tonnes .... This is an absurd scale - far bigger than anything afloat today, and equivalent to a 2.3km (1.4 mile) long bridge!

I see a lot of numbers being tossed about about hull bending and such, but they do not seem to be used by anyone here who has actually built a wooden boat or been involved in designing one.I have been messing about in boats for the last 40 of my 52 years, and working in design and construction of vessels since '88, so I have some small knowledge of the topic.
The ancient Greeks and Romans built some nice boats, as did the Egyptians, but we have yet to find anything the size the ark is supposed to have been. 19th century ship builders discovered that a large vessel HAD to be reinforced with metal. Bronze floors, metal disgonals, etc. This is never shown in ancient ship building.
Let's just touch upon the backbone. Just the sheer size of the molding and siding of such a timber would have required a huge tree. It could not have been laminated due to the lack of any sort of structural adhesive. To get the length required would have involved multiple scarph joins, secured with, most likely trunnels, as archaeological evidence suggests from contemporary sources.
Any hull, wood, glass or steel, works in a seaway. All the forces are directed to the weakest part of the whole. This is why boats often leak at the deck joints and why deck joints and cabin/deck joints fail, often with catastrophic results under severe condidtions. (and the Flood would have been severe, due to the enormous fetch.)She would have worked so much, her seams would open to the sea and no family of 8 could bail her fast enough even with modern dewatering devices.
The Ark would have been totally at the mercy of the seas, without directional control or any way to provide thrust to keep her from broaching.
In short, I can't see it happening. Besides the fact that there is no evidence on the earth of a world wide Delude.