Given the flight dynamics, it's little wonder that helicopter autopilots have been ground upon which engineers fear to tread. But at the Aircraft Electronics Association convention, two companies unveiled rotorcraft autoflight systems, including a start-up called HeliTrak and Garmin International.
This is a companion discussion topic for the original entry at https://www.avweb.com/air-shows-events/aea-garmin-introduces-gfc-600h-helicopter-autopilot