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Old 07-21-2010, 10:06 PM
stefanj stefanj is offline
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Join Date: Mar 2005
Location: Hillsboro, OR
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I really doubt the process was "manual," in the sense of a guy with a Ryobi taking careful aim down the nozzle. I'm sure there was a hopper and a jig to hold the motor in place and an automated drill, as Blackshire suggested.

Some little clues:

There's a late-60ish Model Rocket News article giving a tour of the factory. There's an overhead shot of the plant.

The accompanying text says, paraphrasing: "Series II and III motors are brought to building X for further processing."

Series II motors are B14s. Series III are shorties.

Chances are the shorties started out with normal sized casings and were cut short. Easier than making a new Mabel to accomodate the shorter casing.
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