Flight Control Laws

Question 1

What are the FIVE Normal Law protections?

Answer 1

Load, Pitch Attitude, High AoA, High Speed and Bank Angle.

Question 2

What is the scope of the five Normal Law protections?

Answer 2

• Load; +2.5g to -1.0g clean, +2.0g to 0g with F>0.
• Pitch; +30˚ to -15˚ clean, +25˚ to -15˚ with CONF Full.
• High AoA; starts at V-a-prot and if sidestick is released V-a-prot is maintained
• High Speed;
• Bank; 67˚ but if SS released it will return to 33˚.

Question 3

What is available in Alternate Law with reduced protections?

Answer 3

• Load protection
  X Pitch Attitude protection
  X High AoA replaced by LOW SPEED STABILITY
  X High Speed replaced by HIGH SPEED STABILITY
  X Bank Angle

Question 4

What is available in Alternate Law WITHOUT reduced protections?

Answer 4

Load protection only

Question 5

Explain LOW and HIGH Speed Stability.

Answer 5

LOW SPEED; active at VSW +5-10kts, nose down pitch input introduced.
HIGH SPEED; active above VMO, nose up pitch input introduced.

Question 6

What is the correct Overspeed recovery technique?

Answer 6

Keep A/P engaged, use speedbrakes until below VMO then set lower a lower speed.