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i ~ HOURLY PRODUCTION: <br />_________________ I Job Condition Correction Factors <br />Scraper Cycle Time I ---------------------------_-- <br />- - I Site altitude 6220 ft. <br />' Load ~ 7.2 min. I ----------- <br />', ----- I Alt, edj ustment .. 0.96 <br />Maneuver 8 spread = 0.7 min. I Job efficiency ... 0.83 (7sh/d) <br />------_- I ..-----.... <br />Travel time (haul 8 return): I Met Correction 0.7968 <br />Haul route <br />Road Lergth Grade Rolling Total Velocity Travel times <br />seg. X (f t) res.(X) res.(X) res.(X) (fpm) (min) <br />7 7200 3.00 3.00 6.00 7097 1.76 <br />Haul time = 7.16 min. <br />Return route ------------- <br />7 1200 3.00 3.00 0.00 2956 0.61 <br />•7st i lest seg. adj. for octal./dace L. Return time = 0.67 min. <br />I <br />Total Cycle Time = 3.67 min. I ~ _-_____- _ <br />------- I Machine Volume <br />Machine Payload I -------------- <br />-------- I Struck capacity = 27.00 <br />Material weight = 2300.00 lbs/LCY ~ Xeaped capacity = 37.00 <br />Mat. description ------- I -- -----•--• <br />GENERAL FILL I Average 26.00 LCY <br />-~--------------______--_______-- I <br />Rated payload = 75,000 lbs. I <br />------- I __ <br />Adjusted volume = <br />- ----_____ <br />26.00 <br />---------- <br />LCY <br />Payload volume = 32.67 LCY <br />Unadjusted production per scraper or push-pull pair 424.70 LCY/hr <br />Adjusted production 338.40 LCY/hr <br />Adjusted hourly fleet production 338.40 LCY/hr <br />JOB COST: <br />Fleet size t Scraper(s) Total Job Time: 221.24 Hours <br />Unit Cost 50.475 /LCY Total Job Cost: 535,535 <br />