FCSAU

FCSAU is a Flight Control System Auxiliary Unit used within a helicopter’s wider flight-control architecture. The available product record identifies interfaces to the Primary Flight Control System and Automatic Flight Control System, crew interaction and trim-release management. Independent NH90 technical documentation also identifies an FCSAU as part of the primary flight-control system and associates it with flight-control reconfiguration needs. SERMA Ingénierie’s aeronautical portfolio includes an FCSAU equipment example and confirms experience with high-criticality embedded electronics. The unit is described only at functional level; internal redundancy, channel count, software baseline and qualification status depend on the aircraft program and approved configuration.

Key capabilities

• Interface support for primary flight-control functions
• Interface support for automatic flight-control functions
• Crew interaction within the flight-control architecture
• Trim-release management
• Flight-control reconfiguration support in documented helicopter architecture

Typical applications

Auxiliary control and crew-interface functions within redundant helicopter primary and automatic flight-control systems.