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Forum: Tech Log

29th Sep 2012, 15:25

Replies: 24

A320 x A330 Alpha Floor Activation During Cruise

Views: 15,913

Posted By HazelNuts39

You think so? Would the phugoid motion not...

You think so? Would the phugoid motion not continue, altitude cycling about the ceiling and airspeed cycling about Valphaprot?

Forum: Tech Log

29th Sep 2012, 08:28

Replies: 24

A320 x A330 Alpha Floor Activation During Cruise

Views: 15,913

Posted By HazelNuts39

Not exactly. During the deceleration to...

Not exactly.

During the deceleration to V-alphaprot the airplane is pitching up to maintain lift at decreasing airspeed. The elevator moves NU, the THS follows. That process is arrested at...

Forum: Tech Log

28th Sep 2012, 17:56

Replies: 24

A320 x A330 Alpha Floor Activation During Cruise

Views: 15,913

Posted By HazelNuts39

High AoA protection does not arrest the loss of...

High AoA protection does not arrest the loss of speed, it does arrest the increase of AoA, which in the proposed scenario is relatively slow: from approx. 3 degrees in cruise to alpha prot of about 6...

Forum: Tech Log

28th Sep 2012, 09:21

Replies: 24

A320 x A330 Alpha Floor Activation During Cruise

Views: 15,913

Posted By HazelNuts39

In the conditions stated in the OP, the A330...

In the conditions stated in the OP, the A330 decelerates at about 0.04 Mach per minute.

Forum: Tech Log

27th Sep 2012, 21:27

Replies: 24

A320 x A330 Alpha Floor Activation During Cruise

Views: 15,913

Posted By HazelNuts39

With the sidestick remaining in neutral the...

With the sidestick remaining in neutral the airplane stays at Alpha Prot and alpha floor will not be activated.

Forum: Tech Log

27th Sep 2012, 19:15

Replies: 24

A320 x A330 Alpha Floor Activation During Cruise

Views: 15,913

Posted By HazelNuts39

Re (3): Would it not maintain Alpha Prot? ...

Re (3): Would it not maintain Alpha Prot?

EDIT:: At Alpha Prot the flight control law changes from an Nz command law to an alpha command law. The commanded alpha is Alpha Prot for sidestick...

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