02-28-2017, 09:33 PM
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Level 5 Certified
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Join Date: Mar 2005
Location: Sandy, UT
Posts: 206
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Quote:
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Originally Posted by Jerry Irvine
Noting historical fact is not an attack of any kind.
I would also be curious about the operating pressure of the motor.
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I didn't take it as an attack, Jerry. it indeed was a historical fact.
While others had some issues with Jerry over the years, he and I have had a cordial, respectful relationship. We had a lot of fun parked next to each other at one of the Colorado LDRS launches when I was working for Estes.
We ran the motors at a target pressure of 400 psi at 70 degrees F. That gave a good balance of delivered Isp with lots of safety margin on the case design.
Matt |