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Some Odd Questions...  
User currently offlineAirEMS From United States of America, joined May 2004, 684 posts, RR: 3
Posted (9 years 6 months 5 days 9 hours ago) and read 2490 times:

Ok to help the slow, and well stupid at times EMS guy here. Can anyone help me out on the cn numbers I see on the photos? i.e. (cn 25584/596) is this the aircraft serial number or like a line number from the manufacturer? Some one please help! I tried a search on the forum but came up empty.


As always fly safe  Smile/happy/getting dizzy

-Carl


If Your Dying Were Flying
7 replies: All unread, jump to last
 
User currently offlineN774UA From Netherlands, joined Aug 2004, 343 posts, RR: 0
Reply 1, posted (9 years 6 months 5 days 9 hours ago) and read 2444 times:

Hello AirEMS,

Construction Number (manufacturers serial number) / manufacturers fuselage number.

N774UA



...follow his instructions, switch off at the stand.
User currently offlineSpike From United Kingdom, joined Feb 2004, 1170 posts, RR: 5
Reply 2, posted (9 years 6 months 5 days 8 hours ago) and read 2420 times:

What is the difference between the construction number and the fuselage number? Do bits of aircraft get replaced around the 'main-frame' fuselage?

User currently offlineN774UA From Netherlands, joined Aug 2004, 343 posts, RR: 0
Reply 3, posted (9 years 6 months 5 days 8 hours ago) and read 2409 times:

Good question!
I just copied it from JPBig grin But now that you mention it, it sounds like the same thing. Perhaps it has something to do with the cn continuing through the various types, and the fn is only for one type of plane.


N774UA



...follow his instructions, switch off at the stand.
User currently offlineAirEMS From United States of America, joined May 2004, 684 posts, RR: 3
Reply 4, posted (9 years 6 months 4 days 21 hours ago) and read 2305 times:

Thanks everyone that helps

-Carl



If Your Dying Were Flying
User currently offlineN601BN From United States of America, joined Mar 2003, 40 posts, RR: 0
Reply 5, posted (9 years 6 months 4 days 21 hours ago) and read 2270 times:

I'm by no means an expert on this but for Boeing and MD, the construction number is sequential based on the order in which the planes were ordered and the line number or fuselage number tells you which number it was off the line(across a model type). Due to my inability to use English today, here's an example (numbers taken from airlinerlist.com):

When an airline orders a number of planes, the aircraft to be built are given consecutive construction numbers...Pan Am's 747 launch order was assigned the numbers 19637 to 19661. The frame designated 19637 (N731PA) was the 4th off the line, so it is 19637/4. The fifth off the line, TWA's N93101, was the first of a series of TWA orders, starting with frame 19667, so it is 19667/5. The first number does not always follow the same sequence as the second number...for example, Pan Am's N732PA, cn 19638, rolled off the line in the number three position, before 19637 did (for whatever reason). It is via the second number that one can tell, for example, the 500th 747 (22381/500, N4501Q for SAS). The construction number refers not just to 747s, but a frame's order among all Boeing frames. Airbus serials forgo all these complications and only consist of the line number.

N601BN



N601BN--747 Braniff Place
User currently offlineAirEMS From United States of America, joined May 2004, 684 posts, RR: 3
Reply 6, posted (9 years 6 months 19 hours ago) and read 2101 times:

N602BN you rock that makes sense now


If Your Dying Were Flying
User currently offlineSovietjet From Bulgaria, joined Mar 2003, 2599 posts, RR: 17
Reply 7, posted (9 years 6 months 17 hours ago) and read 2049 times:
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For Soviet types the cn's usually carry information relating to year of manufacture, plant manufactured at, batch number and aircraft number in batch. For example Tu-134 CCCP-65640 has c/n 0350919 which means year of manufacture 1970, aircraft plant no. 135(first digit omitted for security), batch 9, 19th aircraft in batch. In 1974 the c/n changed to another system. For example c/n 8360282 means year of manufacture 1978, the number 3 was always there on all Tu-134 c/n'ed under this system, the last 5 digits are completely random and mean nothing at all. This system was designed to fool spies more than to record info which was probably recorded elsewhere. C/ns of all Soviet aircraft are usually similar to these. Fuselage numbers (f/n) are not like Boeing and Douglas and consist of batch number and number of aircraft in bacth. For example Il-76 c/n 093420599/ f/n 1510 means built in 1979, factory number 84(one would think it should be factory number 34 and it is however it was renamed to 84 after the first 84 evacuated to the site of the unfinished factory 34 during WW2 and remained under the name 84 although the building itself was started as 34. Therefore 34 never actually made a plane and all planes made at that building were "made" by 84 even though the building was 34.) and again the last 5 digits "20599" are completely random and mean nothing at all. The f/n means 15th batch, 10th aircraft.

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