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The run to 6 seconds from 3 seconds is underway, with finish estimated at 3 AM local time.
ChatGPT5 and I collaborated to generate graphs from the log data we are building up. The two graphs below show:
1) The decline of something called sumE
https://newmars.com/phpBB3/download/file.php?id=10
2) the more modest decline of average temperature
https://newmars.com/phpBB3/download/file.php?id=9
What I find interesting in the temperature plot is that the trendline appears to be toward the same 299 Kelvin temperature we saw with the 2 kg/s run.
I have no idea why this might be, but I assume and hope that GW Johnson will be able to explain it.
I don't know what sumE represents, so I can't comment other than to note it is decreasing more rapidly than the average temperature.
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The run to 6 seconds of extendedMerlin with intake set at 20 kg/s is complete.
Here is a link to a plot of thrust that appears to support GW Johnson's prediction of nearly 5 tons-force.
https://newmars.com/phpBB3/download/file.php?id=12
Additional plots will be added later today. The entire log of the run is ready for input to the utility to extract a set of data for three data items: sumE, Average T and sum(rho).
The image at the link below shows the sum of rho - it closely matches thrust:
https://newmars.com/phpBB3/download/file.php?id=13
The image at the link below shows how temperature fluctuates during the startup phase, when we are exhausting the 1 bar fill and ramping up intake flow:
https://newmars.com/phpBB3/download/file.php?id=14
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