The Genesys Aerosystems HeliSAS is a stability augmentation system (SAS) and two-axis autopilot¹ that provides attitude stabilization and force feedback to the cyclic control for helicopters with hydraulic controls. The system architecture is a parallel design that maintains the integrity of the basic helicopter flight control rods while using electro-mechanical servo actuators that are connected to the helicopter’s flight controls rods with parallel linkage.
The HeliSAS is designed as an attitude-based system that accepts attitude source data using a digital attitude heading reference system (AHRS)² inputs, and motion sensors located in the Flight Control Computer (FCC). The FCC commands the servo actuators to apply small corrections to the cyclic as required to maintain attitude.
Available for the following rotorcraft models:
- Robinson R44
- Robinson R66
- Bell 206B
- Bell 206L / L-1 / L-3 / L-4
- Bell 407
- Airbus Helicopter EC 120 B (H120)
- Airbus Helicopter EC 130 B4
- Airbus Helicopter EC 130 T2 (H130)
- Airbus Helicopter AS 350 B/BA/D/B1/B2
- Airbus Helicopter AS 350 B3/B3e (H125)
¹ If autopilot heading hold is desired, a heading system (e.g DG with heading bug) must be installed and active.
² Please note that the attitude source will need to be provided/purchased separately.