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SIDEROLL SPACING: <br />S shall not exceed 65% of Sprinkler Wetted diameter (D) <br />Sa shall not exceed 50% of Sprinkler Wetted diameter (D) <br />Considering up to 5 mph wind use Sm=60% of (D), S1=50% of (D) <br />SPRINKLER SET SPACING <br />M. <br />(Assume 60ft design spacing with 100 ft wetted diameter) /W -ft is ) <br />SPACING OF NOZZLE ALONG LATERAL <br />ft [S1] <br />(Assume 40ft design spacing, with 100' ft wetted diameter) <br />NUMBER DAYS TO IRRIGATE <br />WITH 1 SIDEROLL - Field Len th L Set Time ill L -+-I- hr <br />[Sm) x (24) <br />70d x .13 +11 = I?. ) dayc [13] <br />( ?40 ) x (24) <br />NUMBER SIDEROLLS NEEDED = days one sideroll 13 <br />irrigation frequency [7) <br />S l 3? _ ?•i 7, round to siderolls (14) <br />REOUIRED SPRINKLER HEAD CAPACITY: <br />Flow at Nozzle = Hourl A n. Rate 12 x. S x S1)- <br />96.3 (conversion factor) <br />gpm <br />x - <br />96.3 <br />SPRINKLER NOZZLE COVERAGE: <br />Select Nozzle from Catalogs with psi [P) <br />given pressure Q---? psi [15) <br />required head capacity <br />Start with nozzle selection with a 100ft ± 5ft Wetted Diameter. <br />