First FAA Certification for Cobham Helicopter Stability, Autopilot System

Cobham’s HeliSAS two-axis helicopter stability and autopilot system has received its first Supplemental Type Certification (STC) from the U.S. Federal Aviation Administration for use in a Robinson model R44 aircraft.

Working with Hoh Aeronautics, Inc. of Lomita, Calif., Cobham is in the process of achieving HeliSAS certification for use on the Bell 206, Bell 407, Eurocopter AS350, and U.S. Navy’s Bellmade TH-57 helicopters.

HeliSAS is a two-axis attitude hold, attitude command, flight control system, which has 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. From takeoff to landing, the SAS and Autopilot System decrease the pilot workload.

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