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Attachment no. 2:3-shank ripper <br />Cost Breakdown : Ownership cost/hour : <br />Dozer operating cost/hour : <br />Ripper operating cost/hour : <br />Operator cost/hour : <br />Total unit cost/hour : <br />MATERIAL QUANTITIES <br />Alternate methods - <br />Utilization % <br />$70.58 NA <br />$103.27 100 <br />$7.52 100 <br />$32.78 NA <br />$214.14 Total fleet cost/hour <br />Selected estimating method : Area <br />$214.14 <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 3.33 acres Rip depth (ft) : 2.50 Volume : 13,431 BCY or C,CY <br /> <br />Source of estimated quantity : Division estimate <br />Source of estimated load factor : NA <br />XXXXX <br /> <br />HOURLY PRODUCTION _.::. . <br />Alternate methods - Job Condition Correction Factors - <br />Seismic : Seismic velocity: NA feet/second Unadjusted production <br />Unadjusted production : NA cu. yds./hour per selected method : 3,378.18 cu. yds./hour <br /> <br />Area : Avg. ripping depth : 2.50 feet/pass Site altitude : 6,400 feet <br />Average ripping width : 7.67 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length : 200.00 feet/pass Job efficiency factor : 0.83 (1 shift/day) <br />Average dozer speed : 88.00 feet/minute Net job correction : 0.83 multiplier <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area : 0.838 acres/hour Adjusted unit production : 2,803.89 cu. yds./hour <br />Unadjusted production : 3,378.18 cu. yds./hour Adjusted fleet production : 2,803.89 cu. yds./hour <br /> <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 4.79 hours <br />Unit cost : $0.076 per cu. yd. Total job cost : $1,026 <br /> <br />Data source : (CRG)