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Why Don't CO Regs Have Letters?  
User currently offlineCory6188 From United States of America, joined Feb 2004, 2686 posts, RR: 5
Posted (10 years 6 months 3 weeks 3 days 21 hours ago) and read 2933 times:

I noticed that all the majors except for CO have two letters as part of their registration at the end. American has AA and AN, Delta has DL, Northwest, has NW, United has UA, and US Airways has US. Why doesn't Continental have CO at the end like everyone else? They use six numbers instead of the typical three and two letters.

17 replies: All unread, jump to last
 
User currently offlineFlyf15 From , joined Dec 1969, posts, RR:
Reply 1, posted (10 years 6 months 3 weeks 3 days 21 hours ago) and read 2917 times:

Well, I can't tell you why they don't have letters, but I can tell you why they don't have "CO". "O" and "I" are not valid letters in United States registrations...too easy to confuse with 0 and 1.

User currently offlineFoxBravo From United States of America, joined Nov 2003, 2998 posts, RR: 4
Reply 2, posted (10 years 6 months 3 weeks 3 days 20 hours ago) and read 2849 times:

Actually, other airlines sometimes have three or four numbers plus only one letter, instead of two. And there are frequent exceptions to the general rules: many Northwest aircraft's registrations end in "US," and Delta has some ending with "DN," etc. It's even possible to have just one or two numbers, plus up to two letters (like the corporate jet of a certain athletic shoe manufacturer, which is registered N1KE). But I digress.

Anyway, it's true that Continental is unique among the major airlines in using only registrations that consist entirely of numbers. I don't know why they do it, but there is some logic to it: although the first two digits seem pretty much random, the last three digits are the fleet number.

All I know is that the randomness of those first two digits makes it a bitch to keep track of the registrations when preparing financing documents for several dozen CO aircraft at once, as I learned the hard way a few months ago...  Smile



Common sense is not so common. -Voltaire
User currently offlineCOAB767 From Guam, joined Nov 2003, 1377 posts, RR: 9
Reply 3, posted (10 years 6 months 2 weeks 6 days 11 hours ago) and read 2719 times:

the Following 752s for NW end in US

Ships 5501-5649 end In US
Ships 5650-5657 end in NW

all NW 753s and DC10's end in NW



Continental Micronesia: "Fly With The Warmth Of Paradise"
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 4, posted (10 years 6 months 2 weeks 6 days 11 hours ago) and read 2683 times:

Someone at Continental once told me that the registration numbers actually are in a code that will tell Scheduling and Planning what type of aircraft it is among other things. They track the 3rd digit.. N123456. All the aircraft in a type share the same 3rd digit. Just as an example........

737-300... 3
737-500... 6
737-800... 2
737-900... 4
757-200... 1
757-300... 8
777-200... 0



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineJayDavis From United States of America, joined Jan 2001, 2000 posts, RR: 15
Reply 5, posted (10 years 6 months 2 weeks 6 days 10 hours ago) and read 2684 times:

Delta also has a number of widebodies ending in MH. I think that they are all B-777's, but not 100% sure of that.




User currently offlineDeltAirlines From United States of America, joined May 1999, 8902 posts, RR: 12
Reply 6, posted (10 years 6 months 2 weeks 6 days 9 hours ago) and read 2602 times:

Delta's 764s all end in MH. The 777s end in DA.

Here is a breakdown of CO's fleet (3rd number = type)
M80 - 8
733 - 3
735 - 6
73G - 7
738 - 2
739 - 4
757 - 1
753 - 8
767 - 1
764 - 1
764 - 0
777 - 0

Continental Express/ExpressJet:
ER3 - 5
ERJ-145 LR - 9
ERJ-145 XR - 1
(The EMB-120s were 7, the AT4s were 8)

I don't think there is any specific breakdown of the CO Connection Carriers (at least for Commutair, I have seen there planes have 2-letter endings)

Jeff


User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 7, posted (10 years 6 months 2 weeks 6 days 9 hours ago) and read 2562 times:

DeltA-

I know your correct about the Connection carriers since the numbering system is used to track company aircraft. Continental and ExpressJet have no real say in the maintenance or specific use of Connection aircraft.



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offline777gk From United States of America, joined Jun 2000, 1641 posts, RR: 18
Reply 8, posted (10 years 6 months 2 weeks 6 days 7 hours ago) and read 2528 times:

The last three digits are our internal ship numbers, kinda simplifies things for us as compared to United or Northwest with 4 digit fleet numbers in addition to registrations.

For example, if I was flying ship 058 tomorrow, that would mean I'm getting a 767-424ER, since they all are numbers 051-066 in the fleet, with registration N67058. The first two numbers have no relevance in the fleet, but sometimes are consistent within a fleet type, such as 764's N66051, N66056, N66057, etc..

Off the top of my head, here's what our fleet code breakdowns are:

001-050 earmarked for 777 above 018
051-099 earmarked for 764 above 066
101-150 752
151-199 762
2XX 738
3XX 733
4XX 739
6XX 735
7XX 73G
8XX M80 (except 851-855 currently for 757-300, 738 deliveries over 299 will go in 8XX category)

(By the way, didn't see DeltAirline's post above, he hit it right on the nose, sorry for redundancy)


[Edited 2004-03-07 18:23:45]

User currently offlineYbacpa From United States of America, joined Feb 2001, 1108 posts, RR: 1
Reply 9, posted (10 years 6 months 2 weeks 6 days 7 hours ago) and read 2486 times:

Does anyone know how the (now retired) DC10s, 727s, 747s, and DC9s fit into CO's numbering scheme?



SkyTeam: The alliance for third rate airlines finally getting their act together!
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 10, posted (10 years 6 months 2 weeks 6 days 7 hours ago) and read 2486 times:

777gk-

HEY what about my post..it was up even before DeltA's...and I said the samething... Boy..!!  Big grin



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offline777gk From United States of America, joined Jun 2000, 1641 posts, RR: 18
Reply 11, posted (10 years 6 months 2 weeks 6 days 7 hours ago) and read 2457 times:

EMBQA-

You're right on too, sorry if I made you feel bad!

Ybacpa-

A300s were 9XX series
727-100s were 4XX series
727-200s were 7XX series
737-100/200s were 2XX series
747s were ships 001 to roughly 025
DC-9-30 were 5XX series
DC-9-50 were briefly 6XX series
DC-10-30s were mostly 060-099
DC-10-10s that we originally operated were 040 to 059
Some DC-10-10s that we picked up over the years went into the 060-099 category though



User currently offlineFoxBravo From United States of America, joined Nov 2003, 2998 posts, RR: 4
Reply 12, posted (10 years 6 months 2 weeks 6 days 7 hours ago) and read 2444 times:

I knew the last 3 digits were the fleet number, as I mentioned before, and I know the first digit of the fleet number (i.e. the third digit of the reg) depends on the type of plane, but what I have always wondered is how the first two digits are decided. They seem to be completely random, and it's very annoying when dealing with a long list of CO regs!


Common sense is not so common. -Voltaire
User currently offlineGulfstreamGuy From United States of America, joined Jul 1999, 646 posts, RR: 1
Reply 13, posted (10 years 6 months 2 weeks 6 days 7 hours ago) and read 2390 times:

If I am not mistaken, I believe TWA's 727 fleet were all 5 digits as well (I may be wrong)

Here's a rare CO 737 with a "lettered" registration.. N408PE


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Photo © Jason W. Hamm



Also, I noticed the reg of the CO Express EMB-120RT my sister was on that was involved in a crash was re-registered on this 737..


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Photo © Tim Samples



GulfstreamGuy



"If we couldn't laugh, we would all go insane. " -Jimmy Buffett
User currently offlineOlympus69 From Canada, joined Jun 2002, 1737 posts, RR: 7
Reply 14, posted (10 years 6 months 2 weeks 6 days 6 hours ago) and read 2350 times:

AA also has several planes with 5 digit, no letter registrations - mostly A300s and MD80s, plus a few 763s. NW has a bunch of DC9s with 4 digit, no letter regs.

User currently offlineAviatorTJ From United States of America, joined Jul 2003, 1838 posts, RR: 7
Reply 15, posted (10 years 6 months 2 weeks 6 days 4 hours ago) and read 2287 times:

AA also has some 'TW' registrations.

NW also has 'NB' on their A319s.
They used to have 'US' on the DC-10-40.
There were some ending in 'E' and 'EA' from Eastern on 727s and DC-9s
'RC' are from planes out of the Republic fleet, primarily DC-9
'MC' on more DC-9s
I'm sure there are tens of different reg. styles for the nines, but these are some of the main ones.

__TJ__


User currently offlineN243NW From United States of America, joined Jul 2003, 1632 posts, RR: 20
Reply 16, posted (10 years 6 months 2 weeks 6 days 4 hours ago) and read 2267 times:

all NW 753s and DC10's end in NW
True when talking about NW's current fleet, but don't forget, as mentioned above, that most if not all of NW's retired DC-10-40s ended in US.
-N243NW Big grin



B-52s don't take off. They scare the ground away.
User currently offlineCOAB767 From Guam, joined Nov 2003, 1377 posts, RR: 9
Reply 17, posted (10 years 6 months 2 weeks 5 days 20 hours ago) and read 2177 times:

777qk
Im flying CO963 GUMNRT tonight on ship 063 I believe. I think it is not sure I'll have to double check though. Do you work for CO as well?

062=N76062
063=N69063
064=N76064
065=N76065
066=N77066 these are CMI 767400s and yes your right the last 3 numbers in our fleet are the ship numbers.



Continental Micronesia: "Fly With The Warmth Of Paradise"
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