Definition of jib boom in English:

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jib boom


A spar run out forward as an extension of the bowsprit.
Example sentences
  • The 7-ton crane can handle 600 pounds at full extension of the jib boom at 82 feet, or 2500 pounds at 60 feet.
  • Hovering over the jib boom you see two large anchors lying on deck.
  • That pressure also flows to the slave cylinder to provide additional lifting force to the jib boom.
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