RAM Air Turbine (RAT)
NOTE
This is a stub page. Full system description pending ingest of FCOM.
Overview
The RAT is an emergency power source that deploys into the airstream to provide hydraulic and electrical power when both engines and APU are unavailable. It drives a hydraulic pump connected to the Center hydraulic system.
Key Facts
- Deploys automatically when both engines lose thrust (N2 below threshold) and APU not running
- Can be manually deployed via the RAT switch on the overhead panel
- Provides hydraulic power to Center system (flight controls)
- Provides emergency electrical power via a hydraulic motor-driven generator
- Requires minimum airspeed (~130 kts) for adequate power output