Topic Author
Posts: 588
Joined: Sat Jul 03, 2004 2:28 am

UA 747-422 Vs LH 747-430 Vs AC 747-433

Thu Jul 15, 2004 4:01 am

I would like to understand the difference and how aircraft manufactures designate the "sub" type of a paticular series. For example UA 747-422, LH 747-430 and AC 747-433 are all of 747-400 series, but what do the second and third digists (after - ) mean? I know they probably related to engine choices but how exactly are they assigned? sometimes a fourth letter such as F and M are added. I guess they mean freight and mixed. But are there any other sub categories? Is there such a database for quick look-up?

Many thanks in advance.
Posts: 1371
Joined: Sun Oct 12, 2003 6:20 am

RE: UA 747-422 Vs LH 747-430 Vs AC 747-433

Thu Jul 15, 2004 4:02 am

At Boeing this is the customer code. 22 for UAL, 30 for LH and so on.
Airbus uses the codes for configurations, thus they have less, I think mainly at Airbus it gives info about the used engines.

Sometimes, that puzzled me before, You find a 747-230 with a carrier like Air Atlanta or so, that is second hand market metal...
Putana da Seatbeltz!
Posts: 291
Joined: Wed Mar 03, 2004 5:35 am

RE: UA 747-422 Vs LH 747-430 Vs AC 747-433

Thu Jul 15, 2004 4:04 am

The second and third digits are simply Boeing customer codes...So the customer code for UA is 22. If you look the other aircraft they fly should be the same


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