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>I've never done this kind of comparison. There might >be other ships for which both feet/inches >(pés/pulgados) and metric measurements are given. ><b>However</b>, Marques Esparteiro sometimes gives ><b>two</b> sets of measurements in feet for the same >vessel. I found this while looking through my copies >of SOL articles for feet-meters: > ><i>Nossa Senhora do Pilar</i> >The first set of dimensions is unlabelled, the second >is headed "Celestino Soares" >Keel—191 188 >Beam—47 47 >Depth of hold (I think; "pontal")—35 37'6" > ><i>Santo Antonio e San José</i> >Keel—182, 182 >Beam—44, 44 >Hold—34'6", 37' > ><i>São Sebastião</i> >K—182, 180 >B—44, 47 >H—34'6", 39 > ><i>N.S. da Conceição</i> >K—200, 202 >B—50, 50 >H—37, 38 >A keel of over 200 feet would make for a very large >ship, but M.E. says that although she normally carried >80 guns, she could mount up to 110. Perhaps this >included carronades. He describes her as a ship of 90 >guns, officially an 80, but she was clearly a >two-decker. The 1793 armament was very heavy for a >two-decker: >30 × 36 >34 × 24 >18 × 12 > ><i>N.S. do Monte do Carmo, a Medusa</i> >K—171'3", 171' >B—45', 45' >H—35'9½", 37'10" > ><i>Coração de Jesus, Maria I</i> >Keel— 117.5 177 >Beam— 47.5 47 >Depth of hold—37.5 37 >This looks like Soares was just truncating or rounding >down. But it could have happened with other ships. > ><i>Rainha de Portugal</i> >Keel—181.5, 188 >Beam—47.5, 47 >Hold—39.5, 37'10" >Here, the Soates measurements are not simply >truncation or rounding of the first measurements. > ><i>Vasco da Gama</i> >Keel—178.5, 182 >Beam—48, 44 >Hold—38, 38 > ><i>Principe do Brasil</i> >K—186.9, 192 >B—48.6, 48 >H—39.3, 39 > ><i>Dom João VI</i> >Here we have measurements in meters and Celestino >Soares feet. >Comprimento entre PP (length between >perpendiculars?)—60.00m, 182' *(3.03 feet/meter, 1 >foot = .3297m = 12.9791 English inches or 1.0816 feet) >Boca na casa mestra—16.85m, 48' (2.8487 feet/meter, 1 >foot = .3510m = 13.8205 in = 1.1517 feet) >Pontal da boca sobre a quilha—14.025m, 39' (2.7807 >feet/meter, 1 foot = .3596m = 14.1581 in = 1.1798 feet) >Displacement, metric tons: 3206 >It doesn't look like there is enough consistency in >these measures to make finding a single conversion >factor possible.

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