- The Detroit Marine Historian Journal of Marine Historical Society of Detroit Volume 20, No. 8 April, 1967 M/V MANTADOC (Can. 325744) Built by Collingwood Shipyards as HULL 187 to the order of N.M.Pater-— son & Sons, Ltd.e, to dimensions of 607'9" (OA) x 62' x 36'; 10,902 ge te, 7,788 net. Powered by four 8-cylinder Fairbanks-Morse diesels de- veloping 5,332 bhp at 750 rpm. Keel was laid May 16, 1966, launching held Nov. 23. Delivered to owners at outset of this navigation sea- son, she is pictured here, downbound in the Welland Canal, April 15, W& on her maiden voyage. Photo courtesy of William R. Wilson, Toronto. Bill Luke (See also photos on back page)