feature Jim Irwin, in the right seat, flies the Cool City Avionics Robinson R44 test-bed helicopter to demonstrate its three-axis autopilot to Jeff Kelly, one of the company's investors. COOL CITY Certifying an affordable IFR-capable helicopter autopilot STORY BY SCOTT M. SPANGLER 26 avionics news * february 2015 * PHOTOS BY WAYNE SANDERSON, COOL CITY AVIONICS