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HOURLY PRODUCTION sheet 2 of 2 <br />Hauling Caoacily <br />Scraper Payload (weight) Basis : Scraper Bowl (volume) Basis <br />Material weight : 1, 600 pounds/LCY <br />Matedal description <br />Coal -Bituminous, Raw <br />Rated payload : 75,000 pounds <br />Payload capacity : 46.88 LCY <br />Cycle Time <br />Scraper loading time' : 1.00 minutes <br />Maneuver and spread time : 0.60 minutes <br />• load time per scraper pair on push-pull models <br />Struck volume : 21.00 LCY <br />Heaped volume : 31.00 LCY <br />Average volume : 26.00 LCY <br />Adjusted capacity : 26.00 LCY *" <br />houry productlon reflects volume per scraper pair on push-pull models <br />e»e .,w~r,,~o ra 1 ~ R 9nn <br /> Scraper Push dozer Source <br />Altitude adj.: 1.000 NA (Cat HB) <br />Job efficiency : 0.830 NA (Cat HB) <br />Net correction : 0.830 NA <br />Travel time <br />Road condition description :Rutted dirt, little maintenance, no water, 2"lira penetration <br />Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)" <br />1 800 -10.00 5.00 -5.00 2972 0.34 <br />2 1, 950 13.00 5.00 18.00 508 3.38 <br />3 200 0.00 5.00 5.00 1867 0.20 <br /> <br /> <br /> <br /> <br /> <br />Haul time : 3.92 minutes <br />oen,... ..,..fn <br />1 200 0.00 5.00. 5.00 2795 0.26 <br />2 1,950 -13.00 5.00 -8.00 2972 0.07 <br />3 800 10.00 5.00 15.00 1047 0.55 <br /> <br /> <br /> <br /> <br /> <br />"travel time ror each segment is adjusted ror acceleratioNtleceleratian. Keturn [Ime : v.oo <br />table velocilies are max, attainable Per total resistance shown, no[ average <br />Total scraper team cycle time (load + haul + maneuver and spread + return) : 6.40 <br />Unadjusted unit production/hour : 487.41 LCY/hour "' Adjusted for job conditions : 404.55 <br />Optimal number of scrapers per push dozer : NA Selected number of scrapers : 2 <br />Adjusted single scraper team (unit) hourly production : 404.55 <br />Adjusted multiple scraper team (fleet) hourly production : 404.55 <br />minutes <br />minutes <br />LCY/hour <br />scraper(s) <br />LCY/hour <br />LCY/hour <br />