Reporting Aircraft Type
Can anyone confirm the correct designation of aircraft type when asked on frequency. Is it the ICAO Type code, IATA type code or the code on the ATC FPL.
for example for a 777 Freighter. B77L, B77F or B77X? |
Originally Posted by Aircrafter1
(Post 10943347)
Can anyone confirm the correct designation of aircraft type when asked on frequency. Is it the ICAO Type code, IATA type code or the code on the ATC FPL.
for example for a 777 Freighter. B77L, B77F or B77X? (B77F and B77X are neither ICAO nor IATA codes, by the way) |
Fair enough. So the one on the ATC FPL is stated.
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If ATC is asking for your aircraft type, they would want to know as per the ICAO Aircraft Type Designators (ICAO DOC 8643) so they can input or update your ATC Flight Plan.
If an Apron office is usually the IATA code depending on what systems they are using. This is used for the VGDS (Visual docking guidance system) and stand allocations. Obviously its important to check that the correct aircraft type information is displayed in the VGDS if available before entering the stand as the clearances may be different especially between variants. |
Originally Posted by Little One
(Post 10943378)
If an Apron office is usually the IATA code depending on what systems they are using. This is used for the VGDS (Visual docking guidance system) and stand allocations. Obviously its important to check that the correct aircraft type information is displayed in the VGDS if available before entering the stand as the clearances may be different especially between variants.
ATC don't really care about those distinctions, but they obviously makes a difference from an airport's point of view. |
yep, we don't care, as long as you say is it big or small :)
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Actually sometimes ATC do care, in my previous existence a B747-8F could go down the Alpha taxiway, but B747-8 Pax could not and needed to backtrack......
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Originally Posted by almost professional
(Post 10943679)
Actually sometimes ATC do care, in my previous existence a B747-8F could go down the Alpha taxiway, but B747-8 Pax could not and needed to backtrack......
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Originally Posted by almost professional
(Post 10943679)
Actually sometimes ATC do care, in my previous existence a B747-8F could go down the Alpha taxiway, but B747-8 Pax could not and needed to backtrack......
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No idea! They were the instructions issued, and I could never get an answer as to why - as far as I am aware there is no physical difference but the code changed between the two so the B747/8I was too ‘big’ to go down the Taxiway!
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The general reason why it is requested by ATC on first contact (talking about the ATIS and first call to APC/TWR) is to ensure the FPL data as reflected to the ATCO is correct...there are obvious reasons why this needs to be confirmed - vortex spacing/“line up after” clearances. Not unknown for tactical type changes to be made and FPL’s not updated.
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Many thanks for your responses. All clear
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Originally Posted by almost professional
(Post 10943723)
No idea! They were the instructions issued, and I could never get an answer as to why - as far as I am aware there is no physical difference but the code changed between the two so the B747/8I was too ‘big’ to go down the Taxiway!
AFAIK the landing gear is the same on the 8/8F, but the max weight of the pax aircraft is about 6 tonnes higher than that for some of the freighters. That could be just enough to put the ACNs for the two variants on either side of some demarcation limit for the taxiway in question. |
Never considered that as a reason, but feasible! Mind you bet its changed in the 18 months since I needed to worry about it!
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Originally Posted by almost professional
(Post 10943723)
No idea! They were the instructions issued, and I could never get an answer as to why - as far as I am aware there is no physical difference but the code changed between the two so the B747/8I was too ‘big’ to go down the Taxiway!
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The variations can be quite different - B752/B753 or B733/B738/B38M or A342/A345/A346 or DH8C/DH8D or D328/J328. ICAO type is very necessary, and not just for approach!
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My first response is to just tell them what I am. Like, 757 or A320. If they want more info., they’ll ask, then you can refer to your flight plan for specific designations. After that, I would tell them to call dispatch because that’s their job! ATC may ask for different reasons. Depending on phase of flight, and who exactly you’re talking to, you may guess at what their after. Often I think it’s just easier for them to ask you rather than look it up. Generally, in the US, they want to know your aircraft type so they know how to handle you.
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Originally Posted by Aircrafter1
(Post 10943347)
Can anyone confirm the correct designation of aircraft type when asked on frequency. Is it the ICAO Type code, IATA type code or the code on the ATC FPL.
for example for a 777 Freighter. B77L, B77F or B77X? |
Originally Posted by DaveReidUK
(Post 10943834)
Could be an ACN/PCN issue, I suppose.
AFAIK the landing gear is the same on the 8/8F, but the max weight of the pax aircraft is about 6 tonnes higher than that for some of the freighters. That could be just enough to put the ACNs for the two variants on either side of some demarcation limit for the taxiway in question. https://en.wikipedia.org/wiki/List_o...ht?wprov=sfti1 |
Originally Posted by SaulGoodman
(Post 10950507)
according a quick google search the -8F actually has a higher MTOW than the -8I
https://en.wikipedia.org/wiki/List_o...ht?wprov=sfti1 The actual figures (Max Taxi Weight), per Boeing, are: 747-8: 990,000 lb/449,056 kg 747-8F: 978,000 lb/443,613 kg or 990,000 lb/449,056 kg (depending on option) MTOW is 3,000 lb less than MTW. |
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