Differential GPS
 

GPS Guidance

In the mid-1990s, few people knew about the Global Positioning System (GPS) or how significantly that it would affect their world. 

Grace Flying Service realized that GPS, when coupled with a new system called differential correction, could provide significantly better guidance for crop treatment, whether aerial or ground based.  

We embraced the new technology wholeheartedly, spending significant resources to perfect a system. That investment paid off: we soon had an airborne guidance system, which provided real time accuracy--at 125 mph--of less than two feet. 

Using a light bar mounted on the aircraft fuselage for guidance, we were able to construct and fly incredibly precise electronic patterns over our customers' crops, guided by satellites orbiting 8,000 miles above the earth.

We still use an updated version of that original  differentially corrected GPS system on every load and every swath. It's every bit as valuable as we believed it would be.