Flying Controls

• should a flying control component fail?
  
  

• Duplicated PFCU’s

• Multiple control Surfaces

• Secondary Power supplies – RAT, PTU, Electro-hydraulic pumps, accumulators, secondary hyd system

• Tandem PFCU

• Self-Contained PFCU

• Lifing of PFCU’s

• control system stops and where they are fitted?
  
  

• Primary – Limit the range of movement of the flying controls preventing damage to the aircraft. Fitted internally or externally to the PFCU.

• Secondary – Typically fitted to the control input to prevent damage and overstressing the control runs.

artificial feel system?

Designed to provide progressive feel against a control surface deflection at a constant speed, and against a constant deflection at varying speeds. Based on both airspeed and altitude derived from pilots input and static pressures. Duplicates the normal feel that would be obtained from a manually operated system.