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747 Question  
User currently offlineAir_Chick_757 From Brazil, joined May 1999, 187 posts, RR: 0
Posted (14 years 8 months 2 days 22 hours ago) and read 736 times:

Why some 747 models are numbered 747-412, 747-312, 747-4Q8, etc.??????

6 replies: All unread, jump to last
 
User currently offlineClipper From United States of America, joined Jun 2005, 0 posts, RR: 0
Reply 1, posted (14 years 8 months 2 days 21 hours ago) and read 668 times:

Airlines are given unique numerical or letter codes. The first letter in the extension -357 indidicates a 747-300 model and the 57 identifies the airline as Swissair (I think).

User currently offlineMIKEYYZ From Canada, joined Aug 2011, 0 posts, RR: 0
Reply 2, posted (14 years 8 months 2 days 21 hours ago) and read 658 times:


I was once told that a specific number is unique to an airline as they have their plane fitted with different options, most importantly the engines.

Try this page: http://www.decollage.org/airliners/ai_ty_a.htm
Unfortunatelly it's for Airbuse's, he didn't have the Boeing page done yet but it should be similar.

Mike


User currently offlineKaitak From Ireland, joined Aug 1999, 12322 posts, RR: 35
Reply 3, posted (14 years 8 months 2 days 15 hours ago) and read 649 times:

Clipper is quite correct; each airline is given its own identifier. Pan Am was -21 and it ran through all the numbers, then letters and numbers (e.g. Thai, -D7), then numbers and letters (e.g. -8E, Asiana) and more recently, two letters. This is actually very useful in identifying the first operator of an aircraft, as it will carry this code through its life; e.g. a few of the Olympic 747s were -212s, which identifies them as being ex-Singapore Airlines.
As to options and engines, this doesn't actually have a bearing on the number. For example, JAL was always a PW user until it got its -400s, but still kept its -46 identifier.


User currently offlineDC-10 From , joined Dec 1969, posts, RR:
Reply 4, posted (14 years 8 months 2 days 14 hours ago) and read 642 times:

It's boeings customer code....Like a 747-212B means it's a 747-200B 12 is for Singapore airlines. This number will follow the aircraft no matter what airline ends up with it. Pan Am bought several of SIA's -200s and they remained 212's in Pan Am's fleet record.

User currently offlineTP343 From Brazil, joined May 1999, 312 posts, RR: 4
Reply 5, posted (14 years 8 months 2 days 11 hours ago) and read 634 times:

Just to add, these 2-numbers/letters code are not applied just in 747, but in all Boeing line.

Regards,

TP343, São Paulo, Brazil.


User currently offlineMIKEYYZ From Canada, joined Aug 2011, 0 posts, RR: 0
Reply 6, posted (14 years 8 months 2 days 10 hours ago) and read 633 times:


Sorry for giving out bad information, i checked it out and Clipper and Kaitak were right. Well i learned a new thing today.

Mike


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