Originally Posted by uisdean mor
Maybe this -[URL="http://en.wikipedia.org/wiki/Sponson"]
Would maybe full length and used as fuel or ballast tanks when she was a bulker.
A lot of steel for not much gain but again depends where she was trading - up a river somewhere then sponsons decrease draft so might have been a specific trade requirement on tidal river when fully loaded.
I agree Uisdean ' huge amount of work for very little gain . Sponsons makes sence to reduce draft . I dont dispute vessels have been widened but looking at these photographs it does not seem to be the case .