Greetings Marc and Trident Model.
Your question, Marc, was about ships of this era, and that is the question answered by Trident Model (I apologize for not knowing your proper name). Of course I cannot speak to the overall construction of period ships - that is not my area of expertise.
But I can speak to the monograph and line drawings rendered by Mr. Lemineur. He clearly shows the frames are not perpendicular to the keel. By measurement I have them tipping forward 1.2 - 1.3 degrees. This is a matter of much debate on the French forum and many questions are raised there about this design choice. That tipping is reflected in every subsequent drawing and can even be seen when the drawings are “looking from above”.
Mr. Padoan does not speak to this subject (at least nowhere I have seen) so I cannot say if he is building to the plans or not.
I suspect I will be sorry to have posted this. I generally try to avoid embarrassing myself - the fact that I am not a naval architect is evident in my personal build reports. But I wanted to at least raise the issue with regard to the St. Philippe monograph.
Cheers.
Well, what’s interesting, Paul, is that I think I remember Nigel grappling with this issue quite a long time ago. I must confess that I have not dug up the SP monograph from where I keep it, but I trust what you are saying about the drawings is true.
However, from a practical standpoint, on the slipway, it would seem remarkably difficult to maintain a uniform forward cant. As far as I understand it, if what the shipwrights at Gravelines are doing with the Jean Bart reconstruction is credible (
https://espacetourville.com/actus/tourville-actualite-n11-avril-2026/), the frames are raised in futtocks from the floors, on up.
The stem, sternpost and fashion pieces are erected first, and the hull rises from the floors. That said, there is additional confusion in models I have seen that purport to demonstrate shipyard practice. In this scenario, you have stem/stern/fashion pieces erected, as well as the full mid-ship flat frames, and the two full quarter frames, for and aft. Upon this minimal skeleton, ribands are attached to show the fair run of the hull. Any necessary adjustments can be made, before filling-in the fore and aft runs of frames.
Even in this scenario, I would think that in the 17th C., builders would have quite a challenging time avoiding cumulative error in their forward cant, unless the dead-flat section of framing is a sufficiently solid enough reference to extend the cant fore and aft.
As quite a number of the First Marine French builders (1660’s through 1680’s) were Dutch trained, it seems more likely that their ships rose from the keel.