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Talk:Crown block

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Latest comment: 7 years ago by Casey56 in topic Million pound load?

Million pound load?

[edit]

I feel certain the tension in the drill line never approaches 1,000,000 pounds. A very heavy casing string might give such hook loads, but typically as many as 12 lines are strung — thus drill line tension reaches only 100,000 pounds or thereabouts. Actually this paragraph doesn't especially apply to Crown Block; this info should be elsewhere (e.g., ,Drill Line) Casey (talk) 01:39, 2 March 2019 (UTC)Reply