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WC Saskatchewan | What I do is divide the width by 8.25, which gives the number of acres in a mile.
For example, 36ft header does 4.36ac in a one mile pass, a 100ft sprayer does 12.12ac on a mile.
When I'm combining to do a quick yield check (I don't have the fancy yield monitors and such) I carry my handheld GPS, and reset the trip meter at the end of the field. I can then drive untill I have a hopper full, and then see how far I have traveled, and figure out yield. It is quick, easy and fairly accurate.
edit... I guess this does not answer the question exactly, but it does calculate acres......
Edited by F_armer 10/15/2006 16:57
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formula for calculating acreage
