Maury S Posted August 15, 2020 Share #1 Posted August 15, 2020 Canute, Keith Black, mtaylor and 3 others 6 Quote Current diversion: Anchor Hoy c 1815 - 1825 1:48 scale Recent Builds: Fair American: 18th C. Longboat: http://modelshipworld.com/index.php?/topic/2284-longboat-18th-c-by-maury-modelshipways-by-chuck/ Echo Cross Section: http://modelshipworld.com/index.php?/topic/513-echo-cross-section-by-maury/ Emma C. Berry http://modelshipworld.com/index.php?/gallery/album/203-emma-c-berry-132-pof-by-maury/ Link to comment Share on other sites More sharing options...
Roger Pellett Posted August 15, 2020 Share #2 Posted August 15, 2020 Maury, Thanks for posting this. The Naval architecture concept of tonnage developed from the large barrel that you show called a Tun. In the 1500’s wine was a major commodity imported by England and the king, either Henry VII or VIII, needed a way to levy taxes associated with shipping. The easiest method was to rate a ship by the number of Tuns that she could stow. This morphed into a system where Tunnage could be predicted by multiplying length x width x depth under the main deck and dividing the result by 100. This concept still survives to this day but the calculations are more complex. Tonnage is therefore a measure of volume, not weight. The weight measurement Ton also derives from the carriage of wine as a Tun of wine weighed 2240 lbs, one “long ton.” Roger popeye2sea, Canute, wefalck and 5 others 8 Quote Link to comment Share on other sites More sharing options...
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