Crown block capacity
Input(s)
\(\mathrm{H}_{1}\): Net Static Hook Load Capacity (lb)
S: Effective Weight of Suspended Equipment (lb)
n: No. of Lines Strung to the Traveling Block (unitless)
Output(s)
\(\mathrm{R}_{\mathrm{c}}\): Crown Block Capacity (lb)
Formula(s)
\[
\mathrm{R}_{\mathrm{c}}=\frac{\left(\mathrm{H}_{1}+\mathrm{S}\right) *(\mathrm{n}+2)}{\mathrm{n}}
\]
Reference(s)
Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 26.