Principal commodity carried on lakes is iron ore, and vessels return in ballast or with coal; same vessels transport grain down lakes in spring and fall; numerous vessels built for special trades, such as package freighters, car ferries, self-unloading stone and coal carriers, tankers, passenger vessels; one of latest bulk cargo vessels, steamer Harry Coulby is described, with plans and photographs; main propelling unit is triple-expansion steam engine developing 3000 i.hp. at 95 revolutions.
Recent developments in shipbuilding or the great lakes
Soc. Naval Arch. Mar. Engrs. -- Advance Paper
Society of Naval Architects and Marine Engineers -- Meeting ; 1928 Great Lakes
1928
4 pages
11 Supp plates
Conference paper
English
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Recent developments in shipbuilding on the great lakes
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