End gun radius
Nelson SR100 performance with booster at the last drive unit. Formulas from Pivot Design 1.52.
Yellow fields are inputs — everything else calculates live, same as the original workbook.
Linked values come from Main menu GPM, Pivot timer, and Pivot pressure.
- Nelson SR100 should not be operated at less than 40 psi (2.8 bar).
2 HP
Max booster GPM 130
Pressure boost, psi
32.03
Nozzle pressure, psi
39.09
Nozzle size
0.85
Req. EG GPM
123.5
Actual EG GPM
129.0
Radius, ft
101.4
Irrigated acres
57.33
5 HP
Max booster GPM 175
Pressure boost, psi
40.69
Nozzle pressure, psi
47.37
Nozzle size
0.80
Req. EG GPM
126.8
Actual EG GPM
124.2
Radius, ft
104.4
Irrigated acres
57.61
7 1/2 HP
Max booster GPM 230
Pressure boost, psi
51.95
Nozzle pressure, psi
57.79
Nozzle size
0.80
Req. EG GPM
133.3
Actual EG GPM
137.2
Radius, ft
110.7
Irrigated acres
58.18
No booster
Pressure boost, psi
0.00
Nozzle pressure, psi
13.56
Nozzle size
1.00
Req. EG GPM
95.5
Actual EG GPM
106.5
Radius, ft
76.0
Irrigated acres
55.04