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W_-,ZVu <br /> HOURLY PRODUCTION: <br /> Job Condition Correction Factors <br /> Scraper Cycle Time -------------------------------- <br /> ------------------ Site altitude = 10000 ft. <br /> Load = 1.2 min. ----------- <br /> -------- Alt. adjustment .. 0.88 <br /> Maneuver & spread = 0.7 min. Job efficiency ... 0.83 (lsh/d) <br /> Travel time (haul & return): Net Correction 0.7304 <br /> Haul route <br /> Road Length Grade Rolling Total Velocity Travel time* <br /> seg. (ft) res.(%) res.(%) res.(%) (fpm) (min) <br /> ----------------------I------------------------------------------------ <br /> 1 450 25.00 5.00 30.00 196 2.38 <br /> ---------------------------------------------------------------------- <br /> Haul time = 2.38 min. <br /> Return route ------------- <br /> ---------------------------------------------------------------------- <br /> 1 450 -25.00 5.00 -20.00 1118 0.50 <br /> ---------------------------------------------------------------------- <br /> *1st & last seg. adj. for accel./decel. Return time = 0.50 min. <br /> ------------ <br /> Total Cycle Time = 4.79 min. <br /> ------- Machine Volume <br /> Machine Payload -------------- <br /> --------------- Struck capacity = 21.00 <br /> Material weight = 2100.00 lbs/LCY Heaped capacity = 31.00 <br /> Mat. description . ------- ----------- <br /> Earth - Loam Average = 26.00 LCY <br /> Rated payload = 75,000 lbs. Adjusted volume = 26.00 LCY <br /> Payload volume = 35.71 LCY <br /> Unadjusted production per scraper or push-pull pair : 325.84 LCY/hr <br /> Adjusted production 237.99 LCY/hr <br /> Adjusted hourly fleet production 237.99 LCY/hr <br /> JOB COST: <br /> Fleet size : 1-Scraper(s) Total Job Time: 70.16 Hours <br /> ------- ----------- <br /> Unit Cost : $0.675 /LCY Total Job Cost: $11,269 <br /> ------- ----------- <br />