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readytotaxi
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A380 Bank Angle

Thu Jul 31, 2008 4:21 pm

Over in "Trip Reports" DFW13L has filed some great pictures of the Farborough airshow and the A380.

Big version: Width: 640 Height: 426 File size: 63kb


What bank angle would this be? Near the max for the aircraft, to give a good show?
 
LY744
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RE: A380 Bank Angle

Thu Jul 31, 2008 4:40 pm

IIRC previous FBW Airbuses were limited to 67 degrees bank (33 degrees continuous), which this looks a lot like.


LY744.
 
wilco737
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RE: A380 Bank Angle

Thu Jul 31, 2008 4:46 pm



Quoting LY744 (Reply 1):
IIRC previous FBW Airbuses were limited to 67 degrees bank (33 degrees continuous), which this looks a lot like.

 thumbsup  67° is the max.

WILCO737 (MD11F)
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BAE146QT
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RE: A380 Bank Angle

Thu Jul 31, 2008 5:10 pm

Would it have been shouting, "Bank angle! Whoop-whoop! Bank angle! Whoop-whoop!" or whatever the Airbus equivalent is?

(I'm guessing that's something you can pull the breakers for anyway, but just wondered).
 
SlamClick
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RE: A380 Bank Angle

Thu Jul 31, 2008 5:39 pm

If it is like the lesser buses you are limited to 33° in normal law, but a test pilot could simply select certain of the flight control computers to OFF until you were out of normal law then have 67° of bank available without serious consequences.

You cannot estimate the bank angle in that photo because there is no horizon reference visible. Personally I'm guessing that the bank angle is probably less than 67° but exaggerated by the camera locaton and cropping. I don't have any reason to believe that the image was rotated to exaggerate the bank angle but, again, doubt that the plane was more than about sixty or so.

It mostly just looks steep.
 
Airbus_A340
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RE: A380 Bank Angle

Thu Jul 31, 2008 6:20 pm

In Normal Law, the Airbus can achieve 67° angle of bank indicated by the green "=" limitations on the PFD, if you apply full sidestick input, no disabling of computers or pulling of CBs necessary. If you let go of the side-stick, it will roll back to 33° angle of bank.

This applies to the A330/A340, i'm sure similar applies to the other Airbus'.
 
PGNCS
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RE: A380 Bank Angle

Thu Jul 31, 2008 6:54 pm



Quoting SlamClick (Reply 4):
If it is like the lesser buses you are limited to 33° in normal law, but a test pilot could simply select certain of the flight control computers to OFF until you were out of normal law then have 67° of bank available without serious consequences.

To get to 67° of bank, no system intervention is required by the pilot other than being willing to hold the aircraft there. No computer or test pilot wizardry is required.
 
SlamClick
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RE: A380 Bank Angle

Thu Jul 31, 2008 7:11 pm



Quoting Airbus_A340 (Reply 5):



Quoting PGNCS (Reply 6):

You are right, of course, I was thinking about something else entirely. My dumb.

In any event, I still don't think the plane in that picture is exceeding 67° of bank. I think it just looks steeper than it is.
 
flexo
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RE: A380 Bank Angle

Thu Jul 31, 2008 7:13 pm



Quoting SlamClick (Reply 4):
You cannot estimate the bank angle in that photo because there is no horizon reference visible. Personally I'm guessing that the bank angle is probably less than 67° but exaggerated by the camera locaton and cropping

Exactly, with a little bit of photoshopping, it can look like this:

Big version: Width: 411 Height: 140 File size: 17kb

Disclaimer: I'm not saying this picture was faked or anything, it is just really not possible to tell the bank angle by the way the picture was taken!
 
PGNCS
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RE: A380 Bank Angle

Thu Jul 31, 2008 9:37 pm



Quoting SlamClick (Reply 7):
Quoting PGNCS (Reply 6):


You are right, of course, I was thinking about something else entirely. My dumb.

In any event, I still don't think the plane in that picture is exceeding 67° of bank. I think it just looks steeper than it is.

No problem...everyone occasionally has a brain cramp!  Smile

I do agree with you that there is a very low likelihood that the aircraft is exceeding 67° of bank, although without a horizon it's impossible to tell.

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