The Diaries |
November 16th 2008 |
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As with accustomed, each one finds an occupation; inactivity does not seem to be the speciality of the team. The photography of the updated objects continues, we have just exceeded the number of 300. The Copper containers, cleaned a little, show an impressive “patchwork” of repairs. During the winter, a strap hinge of iron rudder was recovered; it was deposited at the foot of the mast of pavilion (flag) in the general indifference. It is now a question of checking if it really comes from “l’Utile”.
A subtle rule, which I kept in memory, is going to allow us to do some verification. The use of the plan of construction being spread a little in the XVIIIth century, the Master manufacturers use a whole series of mnemonics rules which connect dimensions of all the parts of the ship to a standard measurement, very often the width of the building, or the length of the skittle. For the diameter of the gudgeon, here’s the rule: “The diameter of the gudgeon expressed on line is equal to the width of the building expressed in feet”.
The line is the twelfth part of the inch, it is worth 2,2558 mm, the diameter of the gudgeonof our strap hinge is of 67 mm is approximately 67/2,2558 = 29,7 lines. The width of the building is thus of 29, 7 feet or, in measurement of that time, 29 feet 8 inches. Deep in my computer, I have the characteristics of “l’Adour”, the “sister ship” of “l’Utile”, one reads there: “Width: 29 feet and 6 inches”. Not so bad, no?
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