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AON

NRG Member
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Everything posted by AON

  1. I just acquired a slew of invaluable reference books from a member and while looking through one book (Historic Ship Models by Wolfram zu Mondfeld, pg 66) I stumbled onto a chart of historical units of measure. The unit of measure was standardized across the board with the introduction and acceptance of the metric system in 1799. (no surprise to me) Many countries were using the foot (and inch) as their unit of measure but the actual distance that comprised a foot differed between various countries. (again no surprise to me) What surprised me was to learn that the English foot (12 inches) was established to have been (on average?) 308.0 millimetres prior to this date. Today (as of the standardization made in 1799) it is 304.8 mm ............... a difference of 3.2 mm shorter than earlier dates. This doesn't seem like much but a ship measuring 168 feet long in 1786 might be 168 x 3.2 = 537.6 mm = 21 (and a wee bit) inches longer today using the measuring stick of that day! One of them hemmm moments. Here I thought the change from the Julian calendar to the Gregorian calender in 1582 might have mixed up a few historical dates. Alan
  2. What you outline above might work... give it a try! For me I think using "construction lines" and fixed "points" to then use the lofting feature might be best Some day soon I expect I will be trying this myself so I would not know for sure until then Having one master file for the 3D lofting (all construction lines) and then save it as another file multiple times to create the individual parts from (change select construction lines to object line then extrude the shape for the individual part) then a final assembly file to assembly the individual parts in to build the 3D model might be my approach This would be a lot extra work compared to what I believe you are trying to accomplish but the finished fitted 3D model part files could then be used as templates for an actual build Again, I have to say I have not done this yet so it is just in my humble opinion, untried and unproven. Alan
  3. finding this interesting attached are images from BR67 Manual of Seamanship 1937 VOL 1 reference to describe clinker, carvel or diagonal built boats Alan
  4. Grant I just download that excellent paper by Wayne you provided the link to above. Thank you (now I have even more homework)
  5. DraftSight is a free downloadable CAD program that can be easily used by any junior draughtsman to create 2D drawings I have it at home and we use it at the office
  6. Another incredibly awesome build and log. I aspire to be 1/4 as good as this if I should live so long. (my darling wife is going to be so upset with the amount of time I'll be spending here) Alan
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