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I• <br />C <br />... , <br />,.... .. <br />HOURLY PRODUCTION sheet 2 of 2 <br />Hauling Caoacily ' <br />Scraper Payload (weight) Basis : ~ Scraper Bowl (volume) Basis <br />Material weight : 1,400 pounds/LCY <br />Material description <br />Coal -Bituminous, Washed <br />Rated payload : 48,000 pounds <br />Payload ppacity : 34.29 LCY <br />Struck volume : 14.00 LCY <br />Heaped volume : 20.00 LCY <br />Average volume : 17.00 LCY <br />Adjusted capactty : 17.00 LCY "' <br />IrouM producflon reflects volume per scraper pair on push-pull models <br />Cvcle Time : ob Condition Co ctlons : Sfte altitude (ft.) : 7,500 <br /> Scraper Push dozer Source <br />Scraper loading time' : 0.40 minutes Altitude adj.: 1.000 1.000 (Cat HB) <br />Maneuver and spread time : 0.60 minutes Job efficiency ~ 0.830 0.830 (Cat HB) <br />• road mrre per scraper pair on push•pun models Net correction . 0.830 0.830 <br />Travel time <br />Road condition description :Firm, smooth, rolling, dirt/It. surfaced, watered, maintained <br />Haul Route <br />Seg. # Haul distance (feet) Grade (°k) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)" <br />1 3,500 3.00 3.00 6.00 1855 1.97 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Haul time : 1.97 minutes <br />Retum route <br />minutes <br />fade velotltles are max aflainalse par rotal resistance shoum, not average <br />Total scraper team cycle time (load + haul + maneuver antl spread + return) <br />Unadjusted unft produdion/hour : 239.37 LCY/hour "' Adjusted for job conditions <br />Optimal number of scrapers per push dozer : 5 Selected number of scrapers <br />Adjusted single scraper team (unit) hourly production <br />Adjusted multiple scraper team (fleet) hourly production <br />~xhr~tfi ~-ZG <br />4.26 minutes <br />198.88 LCY/itour <br />2 scraper(s) <br />39735 LCYRtour <br />397.35 LCYmour <br />~- ZO -d6 <br />"travel dme for eaar segmerd is adjustetl for aoeeleranoNdeceleraUOn. Retum time : 1.29 <br />