A 320 select speed in abnormal procedures
Thread Starter
Joined: Sep 2014
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From: Wrong side
A 320 select speed in abnormal procedures
Hello everybody,
During my A320 type rating course, my instructor has told me that everytime I have to increase the Vapp with speed additives due to abnormal or emergency procedures, I have to perform approach no in Speed Managed but in Speed Select.
I have tried to find something in the FCOM or FTCM but with no result.
Has someone a reference to give me?
Thank you guys.
During my A320 type rating course, my instructor has told me that everytime I have to increase the Vapp with speed additives due to abnormal or emergency procedures, I have to perform approach no in Speed Managed but in Speed Select.
I have tried to find something in the FCOM or FTCM but with no result.
Has someone a reference to give me?
Thank you guys.
Joined: Jun 2007
Posts: 3,443
Likes: 39
From: Wanderlust
Espero
You can't find any reference because there is none. It is not because of speed additives but because the slat/flap jam requires a different way of configuring the aircraft, abnormality that has slat/flap problem select speed is recommended. That is also not necessary after you select final landing configuration( flap3) since you have amended your Vapp in PERF page. You can go managed if you wish.
You can't find any reference because there is none. It is not because of speed additives but because the slat/flap jam requires a different way of configuring the aircraft, abnormality that has slat/flap problem select speed is recommended. That is also not necessary after you select final landing configuration( flap3) since you have amended your Vapp in PERF page. You can go managed if you wish.
Thread Starter
Joined: Sep 2014
Posts: 26
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From: Wrong side
Hi Vilas, thank you for your answer. I have had some doubts because the instructor showed me a Conversion Course Manual of an European Flag Carrier where they say that.
But, as you mention, no references on FCOM or FCTM.
But, as you mention, no references on FCOM or FCTM.
Joined: Feb 2015
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From: Wherever I want to be
Vilas,
Despite the statement in the QRH Landing with Slats or Flaps Jammed "Approach with selected speed is recommended" it is mandatory in my airline to use selected.
I assume this requirement is to arrest the groundspeed mini function from becoming problematic especially when field length limited. And for a Flap 0 landing for the 10kt Vref decrease when nearing the fence.
Despite the statement in the QRH Landing with Slats or Flaps Jammed "Approach with selected speed is recommended" it is mandatory in my airline to use selected.
I assume this requirement is to arrest the groundspeed mini function from becoming problematic especially when field length limited. And for a Flap 0 landing for the 10kt Vref decrease when nearing the fence.
Joined: Jun 2007
Posts: 3,443
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From: Wanderlust
If you have a company procedure you have no option but to follow it. Some people are not comfortable with GS mini concept. Flaps 0 case you have to reduce speed later so it can only be done in select speed.
Joined: Feb 2015
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From: Wherever I want to be
Some people are not comfortable with GS mini concept.
Joined: Sep 2007
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From: uk
Actually, I think what your instructor is covering is that following certain failures, the FM doesn't always know the landing config and if managed speed is used the A/T will not allow speed reduction below "F" (or even "S") and so the only ways to fly at Vapp is using selected speed or manual thrust.
He/she may have taking a broad brush approach by saying this is required with all speed additive scenarios but thats not true.
He/she may have taking a broad brush approach by saying this is required with all speed additive scenarios but thats not true.
