• “Nothing takes the place of horsepower.”0

    Air Tractor 502XP at work in Arkansas The statement has rung throughout the ag-aviation industry since the days of removing the 220 HP Continental R-670 radial from the Stearman to eventually replacing it with a 600 HP Pratt & Whitney Canada R-1340 engine. Although there are significant advantages to improving the performance of an ag-plane

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