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Everything posted by druxey
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William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
An interesting comparison! -
Yes, this kind of hull needs a lot of 'prep' before painting. Coming along nicely.
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- Nonsuch 30
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William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
No, I think you misunderstood my statement: the joint lines run along junctions of the different arcs. There is no period work (that has yet been uncovered) describing the application of the cono-cuneus curve in the lower part of the hull. Pett was recorded as going to write about this, but he died before he could reveal his 'shipwright's secrets'. These were recently rediscovered by reverse engineering from the 3D scans of a contemporary model. -
William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
No, conoidal hulls were not a novelty by 1600, but in the 1660's the cono-cuneus curve used to develop the lower hull below the conoid was. And, I can assure you, I used the Newton ms to develop the draught that I posted. -
William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
Yes, Waldemar, The draught for a 180 ton merchant vessel was first constructed at 1:96 using the 'Propositions'. You can see the first iteration of the draught. This was based on a 60' 0" keel to the touch, 27' 0" breadth and 10' 6" depth of hold. The model was built at 1:48. The midships floor has no deadrise, but is flat. Changes in radii were later adjusted to occur at the joint lines. -
A nice idea of presentation! Hope it turns out the way you visualize it, Ron.
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- Sphinx
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William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
Here are photos of a merchantman's hull, as derived by graphic methods, from the Newton manuscript. Comments? -
a drafting tool or paper weight
druxey replied to garyshipwright's topic in Modeling tools and Workshop Equipment
Usually a number of them hold a flexible curve or batten in place on the drawing board. Sometimes they were referred to as 'whales', I believe. -
You could always 'bash' the figures' poses....
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Check: https://minitaps.com/brands/MiniTaps.html
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William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
Haven't seen this draught before. The sections are interesting. Thanks for this, Martes. -
Sideways is always good, in case one forgets to back off or wishes to keep the same setting.
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William Sutherland's concept of ship hull design, 1711
druxey replied to Waldemar's topic in Nautical/Naval History
Respectfully, Waldemar, I'm not sure that I agree with your suggestion that ships, as built, varied in shape from the draught other than by perhaps an inch or so. If one plots out proof diagonals, they usually produce a nice smooth, faired line. Here I'm talking about British draughts, as I've not extensively studied Continental ones.
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