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Bowie No. 2 Mine C1996083 Midterm Review No. 4 (MT -4) <br />Truck Bed (volume) Basis <br />Struck Volume: <br />10.00 <br />LCY <br />Heaped Volume: <br />12.00 <br />LCY <br />Average Volume: <br />11.00 <br />LCY <br />Adjusted Volume: <br />12.00 <br />LCY <br />Page 71 of 558 <br />Final Truck Volume Based on Number of Loader Passes: 9.18 LCY <br />Loading Tool Capacity <br />Bucket Size Class: Medium <br />Rated Capacity: 3.140 LCY (heaped) <br />Bucket Fill Factor: 0.975 Loose material - mixed moist aggregates <br />Adjusted Capacity: 3.062 LCY <br />Job Condition Corrections: Site Altitude (ft.): 6900 feet <br />100 %) 0.975 <br />Net Correction: 0.830 0.797 <br />Loading Tool Cycle Time: Number of Loading Tool Passes Required to Fill <br />Excavators and Front Shovels: Truck <br />Machine Cycle Time vs. Job Condition Rating: ABOVE AVERAGE <br />Selected Value within this Basic Rating: AVERAGE <br />Track Loaders — Material Description: <br />Cycle Time Elements (min.): <br />Load: NA Maneuver: NA Dump: 0.10( <br />Wheel and Track Loaders - Unadjusted Basic Loader Cycle Time (load, dump, maneuver): <br />3 passes <br />NA minutes <br />Cycle Time Factors <br />Truck <br />Loader <br />Source <br />Altitude Adj: <br />1.000 <br />0.960 <br />(CAT HB) <br />Job Efficiency: <br />0.830 <br />0.830 <br />(CAT HB) <br />100 %) 0.975 <br />Net Correction: 0.830 0.797 <br />Loading Tool Cycle Time: Number of Loading Tool Passes Required to Fill <br />Excavators and Front Shovels: Truck <br />Machine Cycle Time vs. Job Condition Rating: ABOVE AVERAGE <br />Selected Value within this Basic Rating: AVERAGE <br />Track Loaders — Material Description: <br />Cycle Time Elements (min.): <br />Load: NA Maneuver: NA Dump: 0.10( <br />Wheel and Track Loaders - Unadjusted Basic Loader Cycle Time (load, dump, maneuver): <br />3 passes <br />NA minutes <br />Cycle Time Factors <br />minutes <br />Factor (min.) <br />Source <br />Material: <br />NA <br />NA <br />(Cat HB) <br />Stockpile: <br />NA <br />NA <br />(Cat HB) <br />Truck Ownership: <br />NA <br />NA <br />(Cat HB) <br />Operation: <br />NA <br />NA <br />(Cat HB) <br />Dump Target: <br />NA <br />NA <br />(Cat HB) <br />Truck Cycle Time: <br />Truck Exchange Time: 0.50 <br />Truck Load Time: 0.646 <br />Truck Maneuver and Dump Time: 0.90 <br />Truck Travel (Haul & Return) Time: <br />penetration 4.0 <br />Haul Route- <br />Net Cycle Time Adjustment: NA <br />minutes <br />Adjusted Loader Cycle Time: 0.273 <br />minutes <br />Net Load Time per Truck: 0.646 <br />minutes <br />Minutes Adjusted for site altitude: <br />0.500 Minutes <br />Minutes Adjusted for site altitude: <br />0.673 Minutes <br />Minutes Adjusted for site altitude: <br />0.900 Minutes <br />Road Condition: Rutted dirt, little maintenance, no water, 1" tire <br />Seg # <br />Haul Distance <br />Grade ( %) <br />Roll. Res <br />Total Res <br />Velocity <br />Travel <br />(Ft) <br />( %) <br />( %) <br />(fpm) <br />Time <br />min <br />