Extension fly-ins help aerial applicators calibrate To assist aerial applicators in calibrating their aircraft, University of Illinois Extension hosts fly-ins to ensure products are applied safely. Along with the Illinois Agricultural Aviation Association, U of I Extension conducted four fly-ins this summer and tested 30 aircraft. “Effectively calibrating and pattern testing even a single aircraft can positively impact tens of thousands of acres throughout a spraying season,” said Extension Specialist Matt Gill. READ MORE