Motor date codes?

[powderburner]

Maybe I'm just dense but I do not see a date printed on any of the Estes motors I just bought.
I got three-packs of B6 and C6 motors, and there are no dates on either the motor casings or the packaging materials.
Has Estes switched over to invisible ink?

 

[shreadvector]

Any long strings of numbers beginning with a letter inside an oval shaped outline?

Any numbers/letters of any kind that are printed on the motor other than the motor designation?

Originally posted by powderburner
Maybe I'm just dense but I do not see a date printed on any of the Estes motors I just bought.
I got three-packs of B6 and C6 motors, and there are no dates on either the motor casings or the packaging materials.
Has Estes switched over to invisible ink?

 

[powderburner]

Originally posted by shreadvector
Any long strings of numbers beginning with a letter inside an oval shaped outline?

You mean like: AO12202? How do I decipher that?


Edit: Never mind. You can all go back to your regular activities now. I finally found the old thread I was looking for:
https://www.rocketryforum.com/showthread.php?threadid=1976&highlight=date+codes

 

[shreadvector]

The letter is the casing manufacturer code (they have used at least two - remember the E15 problems? It helps to track problems to find root causes.) The numbers are the date. the 0122202 could be January 22, 2002 or it could be February 22, 2001.

This has not been updated in years:
https://www.ninfinger.org/~sven/rockets/rmrfaq.5.html#q12

Originally posted by powderburner
You mean like: AO12202? How do I decipher that?


Edit: Never mind. You can all go back to your regular activities now. I finally found the old thread I was looking for:
https://www.rocketryforum.com/showthread.php?threadid=1976&highlight=date+codes