Alexander McDougall (ship)
Encyclopedia
SS Alexander McDougall was a "whaleback
Whaleback
A cargo steamship of unique design, with a hull that continuously curved above the waterline from vertical to horizontal leaving, when fully loaded, only the rounded portion of the hull above the waterline, was unofficially called a "whaleback". With sides curved in towards the ends, it had a...

" ship. The design, created by Scottish captain Alexander McDougall (1845-1923), enabled her to carry a maximum amount of cargo with a minimum of draft. Whalebacks were also called "pig boats", among other names, due to their appearance. The Alexander McDougall was the only whaleback built a with traditionally shaped bow.
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