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Harriet (1829 Ship)
''Harriet'' was a former vessel of the British Royal Navy, probably the . The Navy sold her in 1829 and her new owners deployed her as a whaler in the British Southern Whale Fishery. She made three complete whaling voyages and was wrecked in July 1837 during her fourth. Origins ''LR'' gave ''Harriet''s origin as "Kgs Yd", signalling that she had been built for the Navy. The ''Register of Shipping'' (''RS'') identified where she was built as Ipswich. Both registers gave her launch year as 1813. There were three vessels built for the Navy in Ipswich in 1813 that were sold in 1828 or 1829 and of a burthen similar to ''Harriet''s. All three were ''Cruizer''-class brig sloops of about 386 tons (bm): , , and . ''Fly'' was sold in Bombay in 1828, and ''Harlequin'' was sold in Jamaica in September 1829. ''Fly''s purchaser could have sailed her to Britain for resale, with the result that although ''Harriet'' is most probably the former ''Harrier'', the link cannot be verified definitiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Builder's Old Measurement
Builder's Old Measurement (BOM, bm, OM, and o.m.) is the method used in England from approximately 1650 to 1849 for calculating the cargo capacity of a ship. It is a volumetric measurement of cubic capacity. It estimated the tonnage of a ship based on length and maximum beam (nautical), beam. It is expressed in "tons burden" ( en-em , burthen , enm , byrthen ), and abbreviated "tons bm". The formula is: : \text = \frac where: * ''Length'' is the length, in foot (length), feet, from the stem (ship), stem to the sternpost; * ''Beam (nautical), Beam'' is the maximum beam, in feet. The Builder's Old Measurement formula remained in effect until the advent of steam propulsion. Steamships required a different method of estimating tonnage, because the ratio of length to beam was larger and a significant volume of internal space was used for boilers and machinery. In 1849, the Moorsom System was created in the United Kingdom. The Moorsom system calculates the cargo-carrying capaci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |