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Re: Helgeson Calibration plate. anyone built and tested it?
Posted: Thu Mar 26, 2015 12:05 pm
by 1960FL
Anyway, I think this thread has run it's course. I'll pop back when I have some data on the plate.
Looking forward to your contribution.
Rick
Re: Helgeson Calibration plate. anyone built and tested it?
Posted: Thu Mar 26, 2015 5:21 pm
by larrycavan
1 PAP flowed on Ford's big bench
10" flowed 59.2 = .615 Cd
20.4" flowed 84.1 = .612 Cd
25" flowed 92.8 = .610 Cd
28" flowed 98.1 = .609 Cd
68" flowed 158.2= .630 Cd
That will give you some insight on depression changs vs coefficients. That was from the smallest of the 3 PAPs. Notice the trend, then the reversal as the pressure was substantially increased.
That may or may not be helpful to you. Regardless it is what it is. Point being that if you can't repeat the depression for each test, you may as well not test at all because you won't have any "useful" comparative data.
That's all not meant as a discouragement but instead as logic to consider.
Re: Helgeson Calibration plate. anyone built and tested it?
Posted: Thu Mar 26, 2015 5:29 pm
by larrycavan
The more I look at the numbers I just calculated the more I wonder how a new PAP round of testing would reveal some interesting data if the test was repeated with all the plates flowed on each bench at all those different depressions. Each bench calibrated @28".