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druxey

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Posts posted by druxey

  1. Thr problem with paper plans is a considerable degree of expansion or contraction depending on humidity. You can be absolutely 'on' with that keel today,and be off several mm by the next day. It's like chasing a chimera. Madness will ensue!

     

    Two solutions:

     

    1) Take a known scale measurement  such as keel length and apply a scale rule against your work. 

     

    2) Produce a scale drawing on Mylar sheet. It is dimensionally stable regardless of humidity. Use that rather than a paper plan. 

     

    The second solution is one I've used now for decades, since I discovered paper plans were a snare and delusion for accurate work. Sure, it's more work, but saves my sanity in the long run! The photo is the prelude to my current project, the South Carolina, ex L'Egyptian.

    IMG_4330.jpg

  2. While the jig solves one problem, it creates another - that of making the throat and end seizings 'in the air'.

     

    I use a jig simply to mark the underside of the line where it wraps around the deadeye. After removing the shroud or shroud pair, I can hold things using third hands while applying the seizings. Then I pop a deadeye into the bight (the line has sufficient stretch to do this) and reinstall the shroud over the masthead.

  3. As a footnote to Trevor's contributions, Humphries took off the lines of South Carolina, ex L'Indien in 1782. She had been a French design built in Amsterdam. She was heavily armed with 28 39-pounders (continental guns) on a single gun deck. She was extermely fine below water, fore and aft - more clipper-like than a heavily armed warship. As a result, by the time she reached Philadelphia, she had hogged 'amaisingly' (Humphrey's own note). However, she was the prototype for Humphrey's heavy frigates and, noting this deficiency, as well as the extreme sheer of her decks, he built in preventative measures including early diagonal riders.

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