Why do the re-engined narrowbodies get new type designations?
Thread Starter
Joined: Mar 2006
Posts: 2,633
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From: USA
Why do the re-engined narrowbodies get new type designations?
Hi all,
Does anyone know why the neo and max planes have a different type designator? A320->A20N and B738->B38M. As far as ATC goes, the performance is essentially identical, and in the cockpit the systems are similar.
Does anyone know why the neo and max planes have a different type designator? A320->A20N and B738->B38M. As far as ATC goes, the performance is essentially identical, and in the cockpit the systems are similar.
Joined: Mar 2002
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From: Florida
You need to define what you mean by performance. If it's as simple a $$ per seat mile, it has no relationship to Cert basis.
If it's altitude and/or stall characteristics than likely a designator etc.
If it's altitude and/or stall characteristics than likely a designator etc.
Joined: Jan 2008
Posts: 1,269
Likes: 79
From: Denver
Type designators are used for planning by airports and fire services (ARFF), as well as ATC.
I'd guess any notable changes in characteristics or dimensions such as weights, door heights, engine ground clearance (e.g. neo and Max), sharklet-heights, fueling points, internal aisle widths, etc. are going to be worth flagging for those ground planners.
Even if they are unimportant in 99.9% of ground operations, there may always be one gate somewhere where the little differences could result in a ripped sharklet or a dented nacelle, unless designated.
I'd guess any notable changes in characteristics or dimensions such as weights, door heights, engine ground clearance (e.g. neo and Max), sharklet-heights, fueling points, internal aisle widths, etc. are going to be worth flagging for those ground planners.
Even if they are unimportant in 99.9% of ground operations, there may always be one gate somewhere where the little differences could result in a ripped sharklet or a dented nacelle, unless designated.
Joined: Jan 2008
Posts: 17,731
Likes: 2,105
From: Reading, UK
Type designators are used for planning by airports and fire services (ARFF), as well as ATC.
I'd guess any notable changes in characteristics or dimensions such as weights, door heights, engine ground clearance (e.g. neo and Max), sharklet-heights, fueling points, internal aisle widths, etc. are going to be worth flagging for those ground planners.
Even if they are unimportant in 99.9% of ground operations, there may always be one gate somewhere where the little differences could result in a ripped sharklet or a dented nacelle, unless designated.
I'd guess any notable changes in characteristics or dimensions such as weights, door heights, engine ground clearance (e.g. neo and Max), sharklet-heights, fueling points, internal aisle widths, etc. are going to be worth flagging for those ground planners.
Even if they are unimportant in 99.9% of ground operations, there may always be one gate somewhere where the little differences could result in a ripped sharklet or a dented nacelle, unless designated.
Joined: Jun 2017
Posts: 43
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From: UK / FIN
These differences mentioned is important for maintenance providers too, at least if company is having more than one customer to take care. Some operators let you in to their own systems, some not -> need to rely airport information system for times/types etc etc.
We have currently customer flying randomly A32x CEO and NEO. This need to be known before arrival just in case we need to do something, not all guys trained/approved CEO vs NEO. Same with 737 CL/NG.
We have currently customer flying randomly A32x CEO and NEO. This need to be known before arrival just in case we need to do something, not all guys trained/approved CEO vs NEO. Same with 737 CL/NG.
