Shipbucket

they are, in shipbuilding, also used for the '1 wavetop' and '2 wavetops' conditions, as these result in the same deformations. sagging and hogging is also dependent on loading condition, bulk carriers and supertankers are sometimes seen to be in one of these conditions when empty or fully loaded.

at least, that is what was teached me, IIRC.

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Drawings are credited with J.Scholtens
I ask of you to prove me wrong. Not say I am wrong, but prove it, because then I will have learned something new.
Shipbucket Wiki admin

I think you should look to China

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How do you mean?

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Work list(Current)
Miscellaneous|Victorian Colonial Navy|Murray Riverboats|Colony of Victoria AU|Project Sail-fixing SB's sail shortage
How to mentally pronounce my usernameRow-(as in a boat)Don-(as in the short form of Donald)Dough-(bread)
"Loitering on the High Seas" (Named after the good ship Rodondo)
There's no such thing as "nothing left to draw" If you can down 10 pints and draw, you're doing alright by my standards

Well, politics have no place in SB, especially nationalistic, jingoistic bragging. Anyone reading objective news knows that Chinese policies today, unfortunately leaves something wanting with regards to world peace and stability with its frequent violation of several international maritime laws and treaties.
Let's keep it down to the ships.

Ace, I know you're more a specialist on steel hulls. You cannot compare a wooden hull with a steel hull. A wooden hull is, by definition a very lively hull. Anyone who's been on board a wooden vessel will tell you, so stiffness or lack thereof is not the issue.
However, what is an issue is, if, after a while your keel begins to hog, causing distort ions in the frames and thus resulting in the springing of seams, causing permanent leakages.
Now, you can, like Thiel points out, fix those; however, the question was always about economy, since it would lessen a ship's potential value due to increased docking time. That is why those aforementioned French-built very large two-deckers were never popular with the RN, but were acceptable for the Marine royale or its successor, Marine Nationale, since they usually spent far less time at sea.
And thank you, Rodondo, for pointing those facts out. Yes, there were unusually large vessels even as far back as in the Antiquity, but they were intended for calm, safe lakes or rivers, like you poignantly points out. But then I also did phrase it as such that 300ft was the practicable upper limit, technologically-wise...

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My Avatar:Петр Алексеевич Безобразов (Petr Alekseevich Bezobrazov), Вице-адмирал , царская ВМФ России(1845-1906) - I sign my drawings as Ari Saarinen