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Old 28th December 2014 | 08:54
  #29 (permalink)  
AF330
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Joined: Jul 2014
Posts: 185
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From: Paris, France
Thanks a lot,

Yes....

1) Basically, Alpha prot is also an AoA. The plane just shows where your Alpha prot/floor/max AoA is if you keep this attitude. Do you agree? But he/she pulled the stick, the attitude changed ---> A new Alpha protection AoA. Right?

2) Something very intresting in your video:
A/THR doesn't go below VLS. So it remains ON.
So what happens? Ok...here he reaches Alpha Floor AoA.
--> As A/P is OFF, the default mode is SPEED. When you pull the stick, as you are still above VLS, A/THR tries to maintain that speed. But as you pull the stick, you reach Vprot (A/THR still ON). So I had said that as A/THR is OFF, Vprot managed by ELAC (completely wrong for the first part).

---> As, A/THR is ON, can Vprot be managed by A/THR? Or is it ALWAYS ELAC?
Ok, so you can NOT disconnect A/THR at AoA Alpha floor.

Question 2:

---> In that case, Afloor was over VLS.
We can also notice that 2 things come on the FMA:
- A.FLOOR (I think that at that moment you can NOT disconnect A/THR)
- TOGA LCK (You can disconnect TOGA).
But I imagine that Alpha max is BELOW VLS.
But I can not see the VLS bar. (maybe it's hidden in the red part!)
What do you think?

Question 3:
What are the ways to leave A/THR.? In his case, we didn't even see what happens to the thrust levers! We just see that he goes back to SPEED mode!!!!
Do the levers move to TOGA? How does he come back to A/THR range??
Well, he disconnects A/THR ~ 140kts. So it's enough (and I think that his levers are already at CLB - A/THR range)

Thanks a lot,
AF330

Last edited by AF330; 28th December 2014 at 09:48.
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