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<br />iievised, October 9, 1992 <br />PRODUCTION USING CATERPILLAR 627E SCRAPERS <br />COLOWYO COAL COMPANY <br />1991 PERMIT REVISION AND RENEWAL <br />PERMIT BOND CALCULATIONS <br />ROUTE: RT 17Bm1 - TOPSOIL <br />HAUL <br />OR <br />RETURN <br />SECTION <br />~ <br />DISTANCE <br />(FT.) <br />GRADE <br />(%) <br />SPEED <br />FACTOR <br />RESISTANCE <br />(°s) <br />SPEE~ <br />(MP-; <br />HAUL 1 125 0.00 0.90 4.00 26.15 <br />TOTAL HAliL 125 0.00 0.90 4.00 26.19 <br />RETURN 1 125 0.00 0.90 4.00 28.25 <br />TOTAL RETL~N 125 0.00 0.90 4.00 20.29 <br />ROUTE:RT 1781 - TOPSOIL <br />PRODUCTION RATES FOR SCRAPERS <br />TOTAi HAULAGE TIt4E LOADED <br />TOT=.L RETURN TIME EMPTY = <br />TOTAL CYCLE TIME (MINUTES) <br />AVERAGE TRIPS PER HOUR = <br />TOTAL CYDS PER TRIP = <br />TOT"nL CYDS PER HOUR = <br />0.0542 <br />0.0502 <br />1.6045 <br />31.1632 <br />19.0000 <br />592.1012 <br />PRODUCTION ASSUMPTIONS FOR SC.~2P_PERS <br />SPOT TIME = 0.00 <br />LOAD TIME = 0.90 <br />DUMP TIME = 0.60 <br />DELP.Y TIME = 0.00 <br />WORKING MINUTES PER HOUR = 50.00 <br />1'~-'/'~ <br />