Approach Climb Performance A-320
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Joined: Oct 2004
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From: Floating around the planet
Approach Climb Performance A-320
Hi Folks ,
Where can I find the approach climb performance , for airports whose claimb gradient for the GA is greater than the standard 2.1% / 2.5% ??
Thanks in advance ,
A-3TWENTY
Where can I find the approach climb performance , for airports whose claimb gradient for the GA is greater than the standard 2.1% / 2.5% ??
Thanks in advance ,
A-3TWENTY
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Joined: Apr 2001
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From: various places .....
In the Flight Manual, if you have to do the sums yourself.
Otherwise, your company will (should ?) have the data either implicitly (buried within the landing weight data) or explicitly (as a separate set of climb data) in the Operations Manual.
As I recall, the Airbus doesn't have a paper performance data set so the information will be in the approved computer program
Those gradients are not airport related, they are Airworthiness related.
Yes .. and, no. The basic WAT gradients are out of the design standards but, if that doesn't get you over the hilltops, you need to go into the AFM data to figure out lower weights which will provide a better gradient to suit the terrain.
Otherwise, your company will (should ?) have the data either implicitly (buried within the landing weight data) or explicitly (as a separate set of climb data) in the Operations Manual.
As I recall, the Airbus doesn't have a paper performance data set so the information will be in the approved computer program
Those gradients are not airport related, they are Airworthiness related.
Yes .. and, no. The basic WAT gradients are out of the design standards but, if that doesn't get you over the hilltops, you need to go into the AFM data to figure out lower weights which will provide a better gradient to suit the terrain.
Joined: Jul 2008
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From: Gone to my "Happy Place".
With the A320 operators who are still using paper, the page you're looking for will often be in the "Octopus Charts" manual (RTOW Book), provided that your performance engineering department decided to generate it for you.
Typically, that manual is assembled as....
W&B data (Single Page)
Chart index
Approach Climb Gradient (SE conf 3 / 2)
Vmmu reference page
Specific Airport RTOW charts
Normally, read the required gradient across the top of the page, field elevation on the left, then landing weight limit in the body of the page. Reduce the landing weight, or use "Conf3" for landing (Conf2 for GA) to comply.
Otherwise, sharpen your pencil and open FCOM 2.
Typically, that manual is assembled as....
W&B data (Single Page)
Chart index
Approach Climb Gradient (SE conf 3 / 2)
Vmmu reference page
Specific Airport RTOW charts
Normally, read the required gradient across the top of the page, field elevation on the left, then landing weight limit in the body of the page. Reduce the landing weight, or use "Conf3" for landing (Conf2 for GA) to comply.
Otherwise, sharpen your pencil and open FCOM 2.
Last edited by Jimmy Do Little; 20th July 2009 at 04:34.
Joined: Jul 2008
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From: Gone to my "Happy Place".
It`s not there..At the FCOM 2 you will find just for the standard 2,1/2.5% ...
It's the same data that your performance engineers use.
That said, the calculatation (Perf Data) must come from an approved source before you can use it - computer, data set, etc.
Last edited by Jimmy Do Little; 20th July 2009 at 10:06.
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From: Gone to my "Happy Place".
Actually, I had a similar question about it relating to the altitude. But, when I put the question to one of our Flight Planning guys - performance engineer - he showed me how this procedure would work - with the caveat - that it would not be approved, blah, blah.
Disclaimer: Only your companies approved data and SOP is permitted for operations purposes.
It is the "Operators Responsibility" to provide the data/ procedure, when the aircraft can not comply with the standard missed approach climb gradient, etc, etc.
Disclaimer: Only your companies approved data and SOP is permitted for operations purposes.
It is the "Operators Responsibility" to provide the data/ procedure, when the aircraft can not comply with the standard missed approach climb gradient, etc, etc.
Joined: Sep 2000
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From: London, England
Hi,
My understanding is that if you require a higher than normal missed approach climb gradient (eg Oporto) it will say so on the approach plate.
To check whether or not you can make this gradient, you can run the FOVE landing module and it will tell you the gradient that you should achieve with those flight conditions.
My understanding is that if you require a higher than normal missed approach climb gradient (eg Oporto) it will say so on the approach plate.
To check whether or not you can make this gradient, you can run the FOVE landing module and it will tell you the gradient that you should achieve with those flight conditions.
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From: various places .....
he showed me how this procedure would work - with the caveat - that it would not be approved,
It would be a strange setup for an operator's ops engineering section not to issue company-authorised data ? Perhaps the problem was that your colleague was not in the relevant engineering group (regardless of his background) - showed you a way of doing the work - but noted that his output didn't come over the required signature - hence his information would not be company approved ?
It would be a strange setup for an operator's ops engineering section not to issue company-authorised data ? Perhaps the problem was that your colleague was not in the relevant engineering group (regardless of his background) - showed you a way of doing the work - but noted that his output didn't come over the required signature - hence his information would not be company approved ?
