Posted by dmiller on July 23, 2010 at 16:44:53 from (65.125.253.194):
In Reply to: Re: BIG BUD posted by gitrib on July 23, 2010 at 10:04:00:
During the state Ag Teacher's Conference here in Montana we toured the old factory, talked to the owner (they are currently not manufacturing but still rebuild/repair their old machines and other large tractors). The idea is that on really large farms (5,000 acre or larger) the efficiency of fuel and time is measured in acres per hour and gallons per acre. So a very large tractor that can pull insanely large implements can do the work efficiently enough to cover the acreage and still get in a timely crop without having 4 or 5 hired hands driving 4 or 5 tractors. The formula for calculating acreage per hour is traditionally (implement width * MPH)/10. So the 80 ft. cultivator at 8 mph can cover 64 acres an hour, one guy in a 10 hour seat day can cover 640 acres of summer fallow. Since going to no-till these really large machines have seen their day.
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Today's Featured Article - Horsepower Defined - by Staff. Indicated Horsepower This represents the power developed in the enine cylinder as obtained from the pressure in the cylinders. This is pressure obtained from an indicator which shows cylinder pressures. Indicated horsepower does not represent the actual useful power delivered by the engine. Brake Horsepower This is the actual horse power delivered by the engine to the shaft. It is equal to the "indicated horsepower" less the friction of the engine. It is useful hor
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