Bank Line ships 1953 to 1968, Apprentice to Master
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There has been speculation on the purpose of the additional booms over hatchways on one or two of these Australian-operated ships and the photograph of the "Cycle" nearby where there are no extra booms but clearly sheaves dependent from the triatic stays over the hatchways suggests that they are perhaps used to erect canvas wind chutes to ventilate holds either for cargo purposes or for deck passengers in the tween decks. The types of rigged temporary canvas ventilators that old tankers used to rig to gas-free tanks.
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