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Old 04-30-2011, 10:14 AM   #1
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1949 18' Trailwind
Upland s/n 5060 , California
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Smile 1940s Airstream s/n 4000s History/Name?

Was there a 1940s Airstream 4000s serial number series and if so does anyone know the name and/or history?
Also the 1949 21' Airstream at Shady Dell Trailer Park Arizona isn't a Liner but they don't mention the name. It is very similar in style to my 1949 Trailwind but larger.

From vintageairstream I know the following s/n models were used during the 1940s:
1xxx Liner
2xxx Limited/Cruiser
30xx Wee Wind (fewer than 100)
50xx Trailwind (fewer than 100)
80xx Whirlwind (appears to just be a handful)

Any help would be appreciated.
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Old 05-15-2011, 10:31 AM   #2
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1949 18' Trailwind
Upland s/n 5060 , California
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Questioin Answered

On the community forum 66Overlander answered the 4000 serial number series question:

Originally Posted by crzycpa
BTW Joe, given your knowledge of early Airstreams was there a 4000 serial number series for early Airstreams? The Shady Dell Trailer Park in Arizona indicates they have a 21' 1949 Airstream which appears to be a dead ringer for my 1949 Trailwind although longer, but it does not have the look of a Liner. According to Vintageairstream serial number series appear to be accounted for from 1000-8000 with the exception of the 4000s.

Thanks again for your input.

I will admit to having learned about Early Airstream serial numbers from the work of other, including the prior VAC Historian Fred Coldwell as well as I still do not understand these details completely. As far as I know, the 4000 serial number range was not used in the late 40's-early 50's, but I do not know why. That range was eventually used in 1953-56 (with a preceeding "O") for Ohio built 25'/25' Cruisers and 1957-58 (without the preceeding "O") for California built 18-footers.
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Old 11-19-2021, 04:38 PM   #3
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Update. I have discovered at least two SN 40XX Airstreams still exist. Both are 22' Liners, SN 4003 & SN 4011. I believe that 4003 is most likely a 1948 and 4011 most likely a 1949, but I have no idea what differentiated the 40XX 22' Liners from the normal 10XX to 14XX 22' Liners.
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1947, 1948, 1949, 1950

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