Table 2 Minimum distances to comply to the noise emission limit of 40 and 35 dB for housing areas[16]

Single spin wheel

520 m

770 m

660 m

980 m

Five spin wheels in a field

780 m

1,200 m

1.000 m

1,490 m

Seven spin wheels in a line

880 m

1,370 m

1,160 m

1,700 m

Twenty-one spin wheels in a field

1,040 m

1,600 m

1,375 m

2,060 m