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Nordsten drill calibration chart
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<blockquote data-quote="eagleye" data-source="post: 5049830" data-attributes="member: 4815"><p>from wheel size measure diameter where it runs on ground and multiply by 3.142 (pie x D = circumference)</p><p>a 3m drill travels approx 1333m to drill one acre.</p><p>divide 1333 by circumference of wheel = number of wheel revolutions for 1 acre</p><p>only do 1/10 acre or 1/20 acre</p><p>example only</p><p>diameter of wheel is 0.6m (0.6x3.142 = 1.885m) </p><p>1333m / 1.885 = 707 wheel rev</p><p>1/10 acre = 71 turns of wheel</p><p>1/20 acre = 35.5 turns of wheel</p><p>been using this for over 30 years (i usually use the valve neck as a guide to count wheel revs.</p><p>catch seed as described in thread above</p></blockquote><p></p>
[QUOTE="eagleye, post: 5049830, member: 4815"] from wheel size measure diameter where it runs on ground and multiply by 3.142 (pie x D = circumference) a 3m drill travels approx 1333m to drill one acre. divide 1333 by circumference of wheel = number of wheel revolutions for 1 acre only do 1/10 acre or 1/20 acre example only diameter of wheel is 0.6m (0.6x3.142 = 1.885m) 1333m / 1.885 = 707 wheel rev 1/10 acre = 71 turns of wheel 1/20 acre = 35.5 turns of wheel been using this for over 30 years (i usually use the valve neck as a guide to count wheel revs. catch seed as described in thread above [/QUOTE]
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Nordsten drill calibration chart
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