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Bowie No. 2 Mine C1996083 Technical Revision No.77 Page 6 of 34 <br />Cycle Time: <br />Scraper Loading Time: <br />Maneuver and Spread Time: <br />Job Condition Correction: <br />0.90 Minutes <br />0.60 Minutes <br />Site Altitude: 6750 feet <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Firm, smooth, rolling, dirt/It. surfaced, watered, maintained 3.0 <br />Haul Route: <br />Seg # <br />Scraper <br />Push Dozer <br />Source <br />Altitude Ad': <br />1.000 <br />NA <br />CAT HB <br />Job Efficiency: <br />0.830 <br />NA <br />AT HB <br />Site Altitude: 6750 feet <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Firm, smooth, rolling, dirt/It. surfaced, watered, maintained 3.0 <br />Haul Route: <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />Roll. Res <br />% <br />Total Res <br />% <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />1500.00 <br />10.00 <br />3.00 <br />13.00 <br />834 <br />1.82 <br />Haul Time: 1.82 minutes <br />Retnrn Rnnter <br />Seg # <br />Haul Distance (Ft) <br />Grade <br />Roll. Res <br />% <br />Total Res <br />% <br />Velocity (fpm) <br />Travel Time <br />(min) <br />1 <br />1500.00 <br />-10.00 <br />3.00 <br />-7.00 <br />2938 <br />0.57 <br />Return Time: <br />0.57 <br />minutes <br />Total Scraper team cycle time: <br />3.89 <br />minutes <br />Adjusted for job conditions: <br />466.17 <br />LCY/Hour <br />Selected Number of Scrapers: <br />2 <br />Scraper(s) <br />Adjusted single scraper team (unit) hourly production: <br />466.17 <br />LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: <br />466.17 <br />LCY/Hour <br />Unadjusted unit production/hour: 561.65 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />Fleet size: 1 Team(s) Total job time: 15.80 Hours <br />Unit cost: $1.195 /LCY Total job cost: $8,800.72 <br />CIRCES Cost Estimating Software <br />