Thread: Where to get type IIIa Estes parachutes
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Old 01-09-2022, 11:08 AM
slant-six slant-six is offline
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Join Date: Dec 2011
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It's a way some Estes historians have classified different eras of parachutes. Here's a thread that discusses it.

https://www.oldrocketforum.com/showthread.php?t=18601
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