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>> >> >> >>I will search Boudriot, i remember he give quite a lot >>of infos about coppering >>What i remember now is : >>- bronze bolts to attach the copper plate to the hull >>- COST : around 10% of the cost of the ship !!!! > >Thanks gentlemen! This is just about everything I >needed to know. Cy says the cost of coppering a >British 74 was ƒ1500. Looking at Winfield, who does >list the cost of ships (I can't find any mention of >the cost of coppering, but it may be somewhere in his >four books), the cost of a 74 seems to have usually >been around ƒ55-75,000. This means that the cost of >coppering would have been from 2-3% of the cost of the >ship. Didier says about 10% of the cost of a French >ship. I accept both percentages as valid and this >would seem to indicate the British manufacturing and >metallurgy was more advanced at this time. Jan Glete >has said that British metallurgy with respect to the >casting of iron cannon was probably second only to >that of Sweden in the late 18th Century and well ahead >of the other non-scandinavian countries in Europe and >so it would not surprise me if they could also work >more cheaply with copper. > >I would have guessed that copper sheets would have >been thicker -½" to 1". This proves, among other >things, that I am no metallurgist :-). > >Thanks again, > >John Tredrea

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