09-26-2016, 10:39 AM
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Old Far...er...Rocketeer
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Join Date: Mar 2005
Location: Plano, TX resident since 1998.
Posts: 3,965
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Quote:
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Originally Posted by tbzep
That's what I was talking about. Estes stopped drilling them and began using the standard pintle method. The resulting B14 ended up being very close to if not the same as the "new" B8.
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Yes. And based on earlier conversations here, I'm inclined to think that was indeed the case, that pintle-produced B14's were in fact the earliest versions of what became known as the B8's.
The only discontinuity in this theory is the depth of the nozzles. When I took those pics (~10 years ago), I was careful to properly measure the nozzle depths. The presumably-pintle formed B14 measured 0.75" deep while the B8 measured 0.6". So there was some difference. But this may simply be an evolutionary step - after some volume of production with a 0.75" pintle, it may have become necessary to use a shorter pintle due to excess wear or breaking. (There's a question for Mr Brown  )
Doug
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