Cobham Systems Receives FAA Certification

Cobham’s HeliSAS two-axis helicopter stability and autopilot system has received its first Supplemental Type Certification (STC) from the US Federal Aviation Administration (FAA) for use in a Robinson model R44 aircraft. Working with Hoh Aeronautics of Lomita, CA Cobham is in the process of achieving HeliSAS certification for use on the Bell 206, Bell 407, Eurocopter AS350, and U.S. Navy’s Bell-made TH-57 helicopters.  HeliSAS is a two-axis attitude hold, attitude command, flight control system. The system has two basic functions, a Stability Augmentation System (SAS) to aid with aircraft stability and autopilot outer loop control modes for altitude hold, heading select and navigation sensor coupling. The SAS and Autopilot System provide a significant reduction in pilot workload, from takeoff to landing.