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Airbus Flaps and Speedbrakes mecanism

 
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remont



Joined: 15 Jan 2004
Posts: 63
Location: France

PostPosted: Tue Mar 02, 2004 3:17 am    Post subject: Airbus Flaps and Speedbrakes mecanism Reply with quote

Two questions that are almost the same :

- For the flaps lever : 5 positions. Do the pilot have to pull the lever to move it ? Or does it move normaly and stop with "gates" ?

- For the speedbrake : Does it move without any special action ? All the way ? The arm position : is it a step forward after "iddle" position ? Or is it a pull action from iddle position ?

I Know, bad English ... But I think you'll understand my questions Smile
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A320



Joined: 07 Nov 2003
Posts: 212
Location: United Kingdom

PostPosted: Tue Mar 02, 2004 10:54 am    Post subject: Reply with quote

I believe pilots have to pull a part attached to the shaft upwards to move the flaps lever. This acts as a locking mechanism.

For Speed brakes to arm you push them towards the throttles to arm and fully back to deploy but they do automatically deploy on landing i think.
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pcos
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Joined: 03 Nov 2003
Posts: 2201

PostPosted: Tue Mar 02, 2004 2:18 pm    Post subject: Speed Reply with quote

To arm the Speed Brake mechanism you actually pull up on the handle. There is a position detente there. That would be armed..
There is also a Detente for in Flight. Half way through the movement of the lever.
Flap is as you mentioned with the lower portion of the two part knob having to be pulled up to allow the lever to move.
We have these in development and they will eventually be released..
I swear! Smile
PC
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Ric_Barker



Joined: 28 Feb 2004
Posts: 8

PostPosted: Tue Mar 02, 2004 7:24 pm    Post subject: Re: Speed Reply with quote

pcos wrote:
To arm the Speed Brake mechanism you actually pull up on the handle. There is a position detente there. That would be armed..
There is also a Detente for in Flight. Half way through the movement of the lever.

PC


Peter,

From the info I have have, the spoiler lever only has one detent, and that is Stowed/Armed. You are right that the lever is in the full forward position for stowed, and pulled "up" to arm. However, there is no detent in the middle of the lever travel, as that equates to 50% spoiler deployment.

Ric B.
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remont



Joined: 15 Jan 2004
Posts: 63
Location: France

PostPosted: Wed Mar 03, 2004 1:40 am    Post subject: Re: Speed Reply with quote

I look to the Meriweather website (http://www.meriweather.com/320/320_main.htm).

Information seem to agree with Peter. Here is what we can read :

* Manually pushing lever down and aft inflight, selects surface position of Speed Brakes. A "hard point: is provided at the 1/2 position.
* Speed Brake deflection is limited to approximately 1/2 with an autopilot engaged, regardless of lever position.
* Pulling the lever up to the RET position arms the ground spoilers to automatically extend for landing or when executing a rejected takeoff.
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