Jump to content
HOLIDAY DONATION DRIVE - SUPPORT MSW - DO YOUR PART TO KEEP THIS GREAT FORUM GOING! (Only 36 donations so far out of 49,000 members - C'mon guys!) ×

SJSoane

Members
  • Posts

    1,649
  • Joined

  • Last visited

Everything posted by SJSoane

  1. Hi Ed, Thanks for the very interesting comparisons. It does get one thinking: the Royal Navy tradition of a web of large (beam), medium (carling) and small (ledge) structural members is not the only way to frame a deck required to carry a heavy, fairly uniform load. Indeed, a system like the Young America with large (beam) alternating with almost-large (long ledges) might even make more sense. I had understood the Royal Navy idea was to get the large beams directly under the guns, but at least in the case of the Bellona, this was not uniformly accomplished. A series of large and medium beams like in the Young America could have been more effective structurally. Also of interest is whether one of these compared to the other uses more timber, or requires more labor intensive cutting of joints, etc. And, perhaps the increasing scarcity of timber in England encouraged using up the smaller pieces in the many ledges. If I could remember any of the structural engineering I learning many, many years ago in architecture, I would do some calculations to see just how efficient each of these systems really are in comparison to each other; but I don't remember with any confidence, and it will have to remain an interesting speculation. And after all, we have no way of letting the 18th century shipwrights know that there could have been a more efficient system for framing their ships! Best wishes, Mark
  2. Hi Siggi, Great to see you started a build log. You have an exceptionally nice project, well worth sharing. That is beautiful carving and painting, nicely executed! And, I can learn a lot from you since the Dragon is the sister ship to the Bellona. Mark
  3. I had put in an advance order on Amazon for this book advertised to come out this October. I just received notice from Amazon that it is no longer available, and they cancelled my order. Does anyone know what happened to this book, and is it available anywhere? Mark
  4. Very nice drawings. Adding the sailors really show off the scale of the hull. I think that sub design is the ultimate in a nightmare for people tending towards claustrophobia! Best wishes, Mark
  5. Beautiful oven, Gaetan. So the brick was laid up within a wooden box? Very interesting detail. Mark
  6. Hi Ed, I just noticed the pattern of framing a deck here is different from the Naiad and other 18th C ships of war, in that there are fewer banks of carlings transversally, and therefore longer ledges. And there appears to be only one ledge between beams. I assume this is all because the clipper carried no heavy ordnance, and is narrower? how do the Young America and the Naiad compare in length and width? Best wishes, Mark
  7. Hi Remco, I am just catching up after a long absence. The draught marks are terrific, both stem and stern. You have an exceptional hand with a chisel. Mark
  8. Hi everyone, I have been away, and just got back to the website. Greg, Michael, druxey and Ed, I hoped I wouldn't actually have to build it, once I drew it....;-) All kidding aside, it is interesting how precise one has to be with CAD, or it doesn't get drawn at all. When I first drew it freehand in my original hand drafted drawings, I now realize I was able to fudge exactly where things began and ended, and I am sure my curves were not sections of accurate circles. Freehand has its virtues. And yet, when it is actually built at my small scale of 1:64, the subtleties of where exactly the scroll begins hardly matter. It is a lesson in understanding appropriate tolerances at different scales. Wayne, I hope I didn't lead you down a rabbit-hole with this exercise. But it sounds like you learned as much as I did about interesting geometrical constructions from the 18th century and before (the volute in Classical architecture goes back to 500 BC or earlier). It is very satisfying to puzzle through a geometrical construction, and then when you draw for the final time, everything just falls into place. Obsession has its rewards! This construction is also a reminder for me that our predecessors relied much more on relative proportions and geometrical constructions for forming complex shapes including an entire ship design. We don't tend to think as much today of objects in terms of their proportional relations to other objects when designing and drawing. Perhaps we lost some important ways of looking at the world. And Ben, I am glad solving my puzzle helped solve yours regarding the dotted lines in the stem construction. Further evidence of why this website is so valuable to us all. Best wishes, Mark
  9. Any thickness sander will do this, if the cupping is across the short width of the board, and you put the concave surface down. But is if it is badly twisted down its length, it will just thin the board and leave the twist. In this case, you need first to plane one surface flat.
  10. Michael, I somehow missed that you were back working on this again, and you continue to astound. I love the framing jig, the plan to build a working engine... amazing. I need to pay closer attention! Mark
  11. Ed, I am just catching up with your build log. You continue to offer an invaluable manual for model ship construction with every post! Mark
  12. Alexandru, I have not been able to look in for a time. Now I am catching up, that is indeed a beautiful anchor. Perfect craftsmanship! Mark
  13. Remco, it is looking very good indeed! And your clamps are terrific. did you do the knurling with a Shoreline knurling attachment? Mark
  14. Hi everyone, I am slowly working up some CAD drawings of the Bellona, to consolidate all of the changes I made over the years to the original hand drafted drawings. I thought some of the more obsessive of us out there might enjoy seeing how I finally figured out the geometry of the scrolls or volutes at the fore edge of the quarterdeck. My architecture background came in handy, because I believe the geometry in the Bellona's volute is the same construction as that used to make an Ionic volute capital in Classical architecture. I hope the enlarged geometry is self explanatory, but just in case, a square on a 45 degree angle is inscribed within a circle. The mid points of each side of the square are projected out as shown. The compass point is first placed on upper end of the 6 o-clock line, and the pencil end goes down to the end of that line. A compass arc is then drawn to the 9 o'clock position, and the compass point is then placed in inner end of the 9 o'clock line. A compass arc is then drawn to the 12 o'clock position, and so on. You will notice that the square inscribed within the circle is not the same diameter as the final central circle that shows in the volute. It took me a long time to realize that these did not have to be the same size, and indeed cannot be if the scroll is to take its final shape. I had to experiment with how big the construction circle needed to be, to make the volute fit in its proscribed space. Finally, the circle at the fore edge of this construction does not have the same center as the volute; its center can be seen at the lower end of the vertical line which intersects the topmost line to the upper left, and the beginning of the outer circle. Many wasted--I mean happy--hours were spent figuring out where the centers are for all of these constructions, to match the appearance of the scrolls in the Admiralty drawings. At this point, is anyone wondering if I am procrastinating about starting working on the model itself again? Best wishes, Mark
  15. Michael, I didn't know you were a watercolor painter. Your exceptional talents run deep, and I would see the unexpected gift as a reflection of good karma! Mark
  16. Beautiful details. It looks like photos of full size. Mark
  17. I just picked up TurboCAD Deluxe for the Mac, and after an initial crash (before I learned not to type in the "-" between feet and inches; it thinks it is a subtraction operation), it has worked exceptionally well. Well laid out interface, responds well to drafting with bezier curves, etc. I would recommend it, at least for a Mac. I don't know about the Windows version. Mark
  18. Beautiful work, Danny, and I particularly like the fids and topmast crosstrees since I haven't seen these modeled so well. Mark
  19. Gaetan, Beautiful exhibit. It must have stunned the visitors! Are those all your tools in the case? Mark
  20. I spent a day drawing more, and I am now quite sure at this point that Ed, druxey, and Gary figured this out. The dotted line represents the joint between the apron and the stem, and the rabbet starts in this joint lower down, but begins to veer forward into the stem itself starting a little below the gun deck. Siggi, I'll have a go at reading the notes on your drawing when I see it. I will be very interested in comparing the two versions of our plans. What an amazing team of experts on this website. Thanks so much! Mark
  21. HI Gary, Great to hear from you! Yes, I am starting to think this is the joint between apron and stem. I am going to draw a little more this morning and see if this becomes clearer. Best wishes, Mark
  22. Ed, I just saw your note while I was typing mine. I'll also look at the scantlings for the apron and stem while I am sleuthing. Mark
  23. Hi druxey, Siggi and I have different versions of the Bellona sheer; with different notes in the margins. Both show the same dotted line in the stem. Mine contains two notes about alterations. The one I can read is over the quarterdeck, and says: "Bulkhead ticked [or licked] in, are as was altered by the Surveyor directions, went to Deptford and Chatham with the alterations in the Upper and Quarterdeck [plan?] as in red." The other note is further aft, behind the mizen mast, but it is too faint for me to read most of it. The last part says "...Upper and [?] as in red..." There are dotted lines showing different locations of the bulkheads in the captain's cabin, and the gun ports on the quarterdeck and the aft end of the upper deck are picked out in three different locations. I assume this note refers to these details in the after works. So it is showing alterations, presumably before or during construction, with the note about being sent to the dockyards. But there are no notes at the stem referring to the dotted line mystery. Siggi's colored sheer drawing posted above shows extensive notes at the stem. Siggi, are you able to read those notes? And if so, do they say anything about the stem dotted line? I am going to look more carefully at the gun deck and upper deck plans this morning, to see if they correspond in any way to the dotted line. I love the detective work! Mark
  24. Ed, Always a pleasure and education to see your next installments! Mark
×
×
  • Create New...