RCN Vacuum Ship YBS-61
(RCN Photo)
The vacuum ship YBZ-61 at work alongside the HMCS Stettler (FFE 311) in 1964. The YBZ-61 was, in effect, a huge vacuum cleaner whose job was to vent, clean and gas-free the fuel tanks and bilges of warships. She not only saved time, man hours and money, but made a messy and unpleasant job much easier to tackle.
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