The North American Aerospace Defense Command, the Federal Aviation Administration and the Department of Homeland Security are conducting perfection flights, and you might be hearing them Thursday.
Calibration flights will be taking place from about 1 p.m. to 3 p.m. and are carefully planned and closely controlled. The flights are to help in the standardization of systems and equipment and will improve NORAD's, the FAA's and Homeland Security’s ability to respond to unknown and possibly hostile aircraft.
A civilian Beech Craft King aircraft will be performing the flying patterns at about 2,000 feet above ground level.
They’ll be attempted again Friday should they be canceled for any reason Thursday.