Alternate Law

Question 1

Are stabilities (aural, callouts, visuals etc.) always available?

Answer 1

No. Depends on the failures, as protections, load factor limitation is always available.

Question 2

How do pitch & roll control compare with normal law?

Answer 2

Pitch: only load factor limitation available
Roll: direct law

Question 3

What happens to Turn Co-ordination?

Answer 3

No turn coordination.

Question 4

What happens when the Gear is extended?

Answer 4

Activates direct law except if alternate law is activated from abnormal attitude.

Question 5

What happens to pitch and roll protection?

Answer 5

• No pitch attitude protection. Amber Xs replace the green double bars = on PFD.
• Roll direct law.

Question 6

Alpha Prot. Is lost. What replaces it? And what is the Top of the Barber Pole now showing?

Answer 6

• Artificial low speed stability replaces the normal Alpha Protection.
• Available for all flap / slats config. Actives when 5-10kts above VSW. gentle nose-down.
• VSW

Question 7

What happens at VSW?

Answer 7

Audio stall warning (crickets + “STALL”) is activated at an appropriate margin from the stall condition.

Question 8

How does HI SPD stability work? Can it be overridden?

Answer 8

• Above VMO or MMO, a nose-up demand is introduced to avoid an excessive increase in speed. The pilot can over ride this demand.
• Aural overspeed warning VMO +4 or MMO +0.006.

Question 9

Can you stall the A/C?

Answer 9

Yes

Question 10

Is Alpha Floor Available?

Answer 10

No.