FSPilot747 From United States of America, joined Oct 1999, 3599 posts, RR: 16 Posted (11 years 2 months 1 week 3 days 20 hours ago) and read 2652 times:
What does the 30 in 747-430 stand for? What is the difference between a 400 and a 430? Other planes are like that too? What does it mean? I know about the 300 and 400, and stuff, I just didnt know about the 430's and etc..
Whistler_CYOW From , joined Dec 1969, posts, RR: Reply 1, posted (11 years 2 months 1 week 3 days 20 hours ago) and read 2583 times:
Im not totally sure but I think it stands for the features that each airline chooses. For example, the types of seats, galley, cockpit instruments, toilets, etc. You will only see the number with one airline ie: -475s are only used by Canadian while -451s are only used by United. Also, I noticed that some airlines keep the same 2 digits for all their planes. Air Canada uses/has used 747-433s, 747-233s, 767-333s, etc.
N907CL From United States of America, joined Feb 2001, 255 posts, RR: 9 Reply 2, posted (11 years 2 months 1 week 3 days 20 hours ago) and read 2582 times:
Boeing assigns a number or alpha to each original order for that specific airline. If the airplane is sold, the orginal number is still used, so you can always tell who had the aircraft first. If you buy a Boeing from the plant you will get your own number.
Fabian Schuetz From Germany, joined Aug 1999, 168 posts, RR: 6 Reply 4, posted (11 years 2 months 1 week 3 days 2 hours ago) and read 2534 times:
You are right - this is the so called "Boeing Customer Code". It starts with "01" for Piedmont and ends at "Z9" for Lauda Air.
By the way - 30 is for Lufthansa.
CXA330-342 From United States of America, joined Feb 2000, 398 posts, RR: 0 Reply 8, posted (11 years 2 months 1 week 1 day 18 hours ago) and read 2491 times:
Actually, the numbers didn't start with number 01. The numbers 21-99 were used first because the 707 was a -120. Then came the numbers 01-20, and then letter/number combinations started being used, such as A1, A2, and so on. There's a whole list of Boeing customer codes in the Airliner World Boeing aircraft special publication. If you have it, it's on page 18.
B727-231 From , joined Dec 1969, posts, RR: Reply 9, posted (11 years 2 months 4 days 21 hours ago) and read 2475 times:
EVERYBODY should have that issue of AW. I thought it was really great they published the "customer codes" so that mystery would be cleared up once and for all.
A40-TY From United Arab Emirates, joined Apr 2000, 143 posts, RR: 0 Reply 10, posted (11 years 2 months 3 days 4 hours ago) and read 2459 times:
The '30' designation is Lufthansa's customer designator code allocated by Boeing. The '30' includes fittings and other features that have been specifically ordered by Lufthansa for use on the aircraft. Lufthansa's 737's are hence also designated 737-330 and so on with other Boeing aircraft in the fleet (excluding Airbus aircraft, as Airbus designates its aircraft differently).
Other airlines with various designators include:
Qantas - 747-438 (for example)
United - 747-422
Northwest - 747-451
Thai Airways - 747-4D7
British Airways - 747-436
EVA Air - 747-45E
Cathay Pacific - 747-467
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From United States of America, joined Oct 1999, 3599 posts, 
From , joined Dec 1969, posts, 
From Germany, joined Jan 2012, 0 posts, 
. I read that it is -51 though, I think on Abacus' website.
From Canada, joined Apr 2000, 2518 posts, 
From United Arab Emirates, joined Apr 2000, 143 posts, 
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