Early Air
Topic Author
Posts: 624
Joined: Wed Jan 17, 2001 6:53 am


Sat Jan 13, 2001 8:15 am

Hi, I was wondering what the difference between a 747-400, 422, 438 ect.? What do those last two numbers mean?
Posts: 953
Joined: Wed Nov 01, 2000 9:07 am

RE: 747-4?

Sat Jan 13, 2001 8:30 am

Early Air wrote:
Hi, I was wondering what the difference between a 747-400, 422, 438 ect.? What do those last two numbers mean?<

the last two digit is customer code that boeing used to identify the orginal customer for the aircraft.

ex- -438 means its a 747-400 ordered by Qantas.

Posts: 541
Joined: Sat Nov 20, 1999 10:28 am

RE: 747-4?

Sat Jan 13, 2001 8:30 am

The last two numbers or letters are airline codes. Like AA's 757s are 757-223, 23 is the code for AA. UAL owns 747-422s, 22 is UA. And so on...
Posts: 288
Joined: Tue Jul 11, 2000 11:46 am

RE: 747-4?

Sat Jan 13, 2001 8:36 am

Boeing assigns two digit number to every airline that come right after the series. For example British Airways was assigned #36, so all the 747s are 747-136, -236, -336, or-436 and 757-236. You get the point.
Posts: 6633
Joined: Tue May 18, 1999 11:10 am

RE: 747-4?

Sat Jan 13, 2001 9:08 am

In addition, when the aircraft changes owners, the designation stays the same. A 744 built as a -422 will always be a -422, no matter who owns it.
Posts: 228
Joined: Wed Oct 11, 2000 1:06 pm

RE: 747-4?

Sun Jan 14, 2001 1:17 am

You obviously don't know your engines since you cried earlier about Continental flying 757's over to Europe.
CO's 757's use the Rolls Royce engines, and can fly for over 9hours. I guess you won't fly from sfo-ewr on 757's either. A Newark-Birmingham England flight is 6hours 20min, and a Newark-San francisco flight is 6 hours 10 min. So what is the difference?
Open your heart and push the limits
Posts: 1395
Joined: Mon Dec 11, 2000 1:24 am

RE: 747-4?

Sun Jan 14, 2001 1:36 am


Actually, there's a few exceptions. I remember a 747 ordered by Braniff and never delivered. The aircraft was buildt under the -27 Braniff Boeing code but was later delivered to another airline and converted to another Boeing's customer code.
Falcon....like a limo but with wings

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