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JohnE

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About JohnE

  • Birthday 04/04/1949

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    Mobile Bay Alabama

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  1. Oh, yes Sir, you have been to sea and obviously love her as much as the ships. Your paintings are evocative and profoundly moving in many ways. Thank you for sharing them. You have created a new admirer and customer. I very like your appreciation of service craft and the oft neglected, lonesome and forlorn, patrol boats. My heart has a warm place for Castle class trawlers. John
  2. Thanks all. Have to admit that I had some frustrating periods, but once the lights came on the journey became a lot of fun. Only wish I had known this sooner when poor Mark was having such problems with the stern of his Licorne. Herask and Bava are both encouraging me to get up to speed in Blender so I can do visualizations in 3D. They are really helping me focus the learning curve. The ability to see a complex piece of wood and how it fits with the other pieces, before I pull out the saw, will be I think invaluable. Ciao. John
  3. Hi Gaetan, I live on the Gulf coast in Alabama, so humidity changes are very large. It really messes with the guitars. I use a humidifier and a dehumidifier to keep things on a relatively even keel (ha, ha). I don't try to climate control, just keep the changes from being too radical. Might help le vaisseau. Love the work on the rablure. John
  4. Something else that happened is I was able to import quarter-beam and mid-beam lines into the MATLAB hydro program and evaluate the curves for performance. Turns out that Jacques-Noël knew exactly what he was doing. They fall within acceptable modern parameters. Howard Chapelle and Merritt Edson would approve. It also becomes apparent why French ships (although can only speak to Sané types) were so sensitive to trim in order to get most out of their performance regime. The lines purty near say outright that if they have a bit too much load drag, or sailed with a squat, they will su
  5. Thanks Druxey, that's nice to know. Speaking of translations ... had to do quite a bit of Vial du Clairbois for the lovely Cornélie. The compound curvatures of the fashion frame (estain) and the filling transoms have always been quite painful to get right. The main reason is no one has done those for a Sané design before, so there is nothing to use as a guide or make intelligent judgments from. The British didn't take off enough lines in the right places to provide a suitable guide, and even the lines in the Chaumont Papers are way too few and far-between, besides being completely
  6. Wonderful pictures and outstanding work. Prekrasan !! ciao John
  7. Unfortunately, no. The Mungo Murray treatise includes an abridgement of parts of Elemens de l'architectue navale by Duhamel du Monceau, but I think that's about it. So far as I know, Olivier, Ozanne, Morineau, Monceau, Forfait, Clairbois, Lescallier, even de Freminville, have not been translated except privately. John
  8. Hello Dan, French gammoning hole positions are often different from British practice. Boudriot mostly places his in the fill piece (garniture) between the cheek curves (courbes de jottereau) as you note. There is no 'rule' per se, and I have seen different designers position them in different places. Vial du Clairbois just says "make sure there is good purchase". It's no surprise that the French rig out different since their bowsprit steeve is 30 some degrees rather than the British 22 or so degrees, at least for frigates. Hope this helps. John
  9. Salut Gaetan I am doing exactly that for my Cornélie. I have the quille and contre-quille in 3D and am lofting each frame with special attention to the rabbet angles. It is interactive - I place a frame/couple and then tweak the keel assembly underneath it to reflect a proper shape to receive the garboard strake. It is fun and interesting to watch the rabbet shape evolve as I move farther and farther aft. When the process is finished, I will have a set of suitable plans for the keel pieces, as well as lofted frames/couples that fit. 3D is a bit of a challenge, but a gre
  10. Thanks for the likes. I was a bit remiss and forgot to put up some pics. Here's some of the guidelines for the lofting. This part makes sure that the lines are ok in all three views and everything checks against the Devis. There are a (very) few places where the Devis is inconsistent by a (very) small amount, but they are all in the fiddly-bits category. All things considered, she's coming along beautifully; everything is falling right into place. That means it's time to be extra careful so I don't get bit in the Coulomb.
  11. The stern lofting of Cornélie is pretty well finished and golly, does she have lovely looking buttocks. Fashion frame(s) and filling transoms fair in nicely and the surface differentials, for defining the wood’s shape and curve, are complete. The remaining step is to position it all on the massif and define the pieces of the deadwood, and their curvatures. Whew! That was hard! Well, not so much hard as incredibly painstaking. I got inspired by the 3D work done for the Swan Group by their European mystery guest. I am trying some of the same techniques to get rabbets looking right a
  12. The idea of French frigates, and ships in general, being ‘better’ than others was true to a large extent at a certain period in time. The development of French warship technology and construction dates back to the mercantilist policies initiated by Richelieu and mastered by Colbert, with much of the increased state revenues going into development of the Navy, including development of the dockyards, schools, manpower base, and other infrastructure. Colbert’s bureaucratic system allowed France to pursue technological advances in ship construction and maritime science, helped along no
  13. More progress. The spine is pretty well settled in; keel, bow, stern, deadwood. To finalize things, I had to make an executive decision on the sided dimensions of frames/couples. Room and space is a simple calculation; station spacing is 101 pouces, there are three filling couples per station (except extreme forward and aft), so room and space is 25 pouces, 3 lignes. All I had to do was determine the frame siding. The kinda, sorta, "rule" from the echantillon is 9 pouce 6 lignes. However, this does not correspond with measurements taken by the British off captured Sané frigates. Th
  14. Hello Gaetan, I think the drain notch should go all the way forward and aft. Connect all the frames/couples that have space between them, including crotches on deadwood and apron. Ship has a pitching motion, and if there is water above the floorboards amidships, it will slosh forward when the ship pitches down, and slosh aft when the ship pitches up. It seems a good idea to drain away water from the space between crotches if (or when) it collects there from sloshing. This may not be necessary in normal cases, but sometimes leaks can be rather large and let in a bunch of water.
  15. Me too, Mark. Have some catching up to do. It's a bee-you-tee-ful summer day here on the gulf coast, 90+ degrees with 90+ % humidity. Can't wait to see the interior planking. Stay well. John
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