David Aris was puzzled , in the April 2011 issue of Sea Breezes, about machinery arrangements on the ss Kaponga built by Caledon Dundee in 1949.
Her winches were Clark Chapman, who were the best winch builders around and also the Alma Mater of that famous Irishman, Parsons who designed the silent winch for passenger ships and the 30-40 knot steam turbine. I suspect the Kaponga’s winches had two cylinders which were seven inches in diameter and very badly maintained by all accounts. She had eight winches in all.
Kaponga was sold on twice, and in her last life she was Panamanian and named Empress of Victoria. Under this name in Lloyds Register 1967/68 she is shown as twin screwed with each engine 3Cyl. 19 inches, 31 inches and 55 inches. She was not classified by Lloyds since 9/63 having changed over to Bureau Veritas. She had a 1 in 6.5 ratio (Length at wI 300ft breadth 46 ft) at the waterline and a narrow stem configuration giving her little grip in an agitated seaway. Normally a twin engined ship with one propeller has a gearbox in a two in, one out configuration allowing for running on one engine as required.
My only experience of that arrangement was with medium speed diesels at 400-450 RPM.
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