A320 Flap indications on the ECAM
Thread Starter
Joined: Jan 2006
Posts: 55
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From: Sussex, UK
A320 Flap indications on the ECAM
Hi folks.
I hope you can settle an argument that we were having in the office this week:
In your A320, once you've got the engines started and are setting up for takeoff, when you move the flap lever from 0 to 1 or 2, do the flap indications start to move pretty much immediately, or do the slat indications start to move first and then the flaps move afterwards.
Also, I'd be interested to know if it's different between the CRT and the LCD versions
Thanks for your help.
Aidey
I hope you can settle an argument that we were having in the office this week:
In your A320, once you've got the engines started and are setting up for takeoff, when you move the flap lever from 0 to 1 or 2, do the flap indications start to move pretty much immediately, or do the slat indications start to move first and then the flaps move afterwards.
Also, I'd be interested to know if it's different between the CRT and the LCD versions
Thanks for your help.
Aidey
Joined: Jun 2001
Posts: 4,777
Likes: 9
From: Blighty
In the air, the slats will aways extend first and retract last. On the ground, I don't know if it's different, I've never noticed. This is because it's part of the PNF's post start scan. I move the lever and immediately after that, I'm doing other things - so I'm not watching the upper ECAM display. But I will look for you next time I fly and report back.
There are differences in the presentation of the CRT and LCD displays, but I suspect that there is no difference oin the flap sequence as the display should be a instantaneous indication of control surface position.
There are differences in the presentation of the CRT and LCD displays, but I suspect that there is no difference oin the flap sequence as the display should be a instantaneous indication of control surface position.
Joined: Jun 2006
Posts: 83
Likes: 19
From: Sandcastle 2
Both Dan and divine are right. There is a slight delay between the slats and flaps moving, but it isn't much.
In the air its slightly different because when you select config 1 you only get the slats moving one stage and the flaps stay where they are. Only when your on the ground and you select config 1 will the flaps move, and that will give you Config 1+F (hence the F for flap).
Dan's also right about the displays, although they look slightly different they show the same movement and it is an instantaneous indication of their position.
In the air its slightly different because when you select config 1 you only get the slats moving one stage and the flaps stay where they are. Only when your on the ground and you select config 1 will the flaps move, and that will give you Config 1+F (hence the F for flap).
Dan's also right about the displays, although they look slightly different they show the same movement and it is an instantaneous indication of their position.
Joined: Jun 2005
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From: Citizen of the World
Dan,
True, except of course if you're going from a higher flap setting to Flap 1 in the air, in which case you'll get 1+F, flaps and slats at position 1, as happens during flap retraction in a go-around.
True, except of course if you're going from a higher flap setting to Flap 1 in the air, in which case you'll get 1+F, flaps and slats at position 1, as happens during flap retraction in a go-around.
Joined: Jun 2001
Posts: 4,777
Likes: 9
From: Blighty
Hi SID, I think I mentioned extend, which means from 0 to 1. Slats only.
And as for the ground selection, I can confirm that the Slats lead the Flaps in this situation as well. On selection of 1+F on the ground, the flaps don't move until the slats are about 3/4 extended.
And as for the ground selection, I can confirm that the Slats lead the Flaps in this situation as well. On selection of 1+F on the ground, the flaps don't move until the slats are about 3/4 extended.
