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Ratnbird Sprinkler Head FeAOrmance-ALFALFA-7 day cycle <br />rainoird 30 a 40psi ? 3115" nozzle <br />6.5 gpm 83 It dia <br />779104.57 sq Inch <br />1 NUMBER OF SETS <br />32 NUMBER OF SPRINKLER HEADS ( 33-1) FOR A 128OFT SYS <br />5410 AREA OF SPRINKLER IN SOFT <br />144 CONVERSION TO SO-tN <br />12,465,673 SQ-INCHES IN A QUARTER MILE SYS'T'EM <br />OR <br />7 diameter of sidarofi wheel <br />22.0 CiraumiferenCO Of side roll wheel (7(t dia) <br />3 # of complete turns for new set <br />66.0 Distance Traveled <br />1280 Length of side roll being used <br />84444 Coverage- Sq-ft <br />144 conversion factor to sq-in <br />12,158,867 Coverage- Son <br />amount of water put dawn per sprinkler <br />16.5 hrs per sprinkler set to gat 14days worth of gross wafer or net water <br />4095 gallon per set <br />231 cubic inch to gallon conversion <br />945,945 cubic inches of water per sprinkler <br />33 NUMBER OF SPRINKLER MEADS <br />31,216,185 total cubic inches of water per sidaroll <br />2.57 inch of NET precipitation per sprinkler set(GOOD FOR 7DAYS) NEED 2.5 <br />0.24 Inch of precipitation per hr <br />Morgan farnifly <br />50.0 shards 33 <br />690.5 gpm <br />6.5 gpm per sprinkler head <br />106.2 sprinkler heads that can be operated <br />334 sprinkler heads per compiaie 1fAmile sideroll <br />3.2 quarter mile SR systems. <br />80% system efficiency <br />2.6 Net # of sidarotls <br />33.0 shares per cis <br />15.7 shares of water per sideroli <br />1.23 acres per share Of water <br />50Shares115.7= 3.2 siderolis <br />7.0 days cycle <br />168.0 Gross total hrs <br />71.0% management efficiercy <br />119.3 Net total hours <br />4.4 Gross water Inches from ET (alfaHa = 025 inch per day FOR 20tt7 ET) <br />70.0% side rolt efficiency <br />3.1 Not water inches from ET <br />10.5 total hours to sprinkle enough inches of water to satisfy alafatfa for 7days <br />1.5 Down time to shut down site roll, drain, move, reconnect and startup <br />12.0 Total hours for a set <br />10.0 total moves in 7day cycle = net total hrsftolaf hours to sprinkle) <br />19.4 acreage under side rail <br />F-\Eng\DATA\excell\lurf irrigation managment\2007 WFC precipitation requirement from TIM 04FES08.xis <br />2/