CHT limit correct?
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I just wanted to let you know that I can't look at this right now, but it will be the first thing I do when I get back to my desk. I've been using that code for quite a while now across several aircraft, so you would think I would have noticed something like this by now. I suspect there is some automatic unit conversion funniness going on here. I'll let you know a little later.
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Dude... it's Sunday... I am totally buffed by your support and answering all these questions we post all the weekend, because we are simming, but that is your work and Saturdays and Sundays are not for work... 🙂
It shows one more time how much dedication you put in your products and why we love them so much.
Take your time... And I also love this very kind and helpful community. Nobody is rambling about stuff. Everybody is constructive and nice... 🙂 -
I finally looked into this. There is definitely something going on with how whatever application you are using is retrieving those variables, because I get completely different values over here, and I confirmed that the EDM is reading the correct values in the debugger. The average EGT/CHT values for the whole engine are in Celsius and the values for each cylinder are in Fahrenheit. This means that the cylinder values should always read above the average value, except at -40, obviously. Since that's not the case in your screenshot, we know that something is afoot. I've also seen strange L:Var unit conversions if variables assigned a real unit, like "Celsius" are read with the generic type "number". I don't know if that will help you figure out what's going on in your end, but at least I can confirm that the instrumentation in the aircraft is displaying the correct values.
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Yes, the instrumentation makes much more sense and look correct, but all the variables are different not about a unit conversion. If you look at the EGT on the last combined screenshot, you see that in the exact same time the variables are only different by 1 degree and the instrument ist showing a difference of 88 of degrees of "whatever" :-)
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In the last screenshot, you're come paring the average CHT/EGT of all the cylinders in each engine (should be in °C) to the absolute temperatures in only cylinder number 1 of each engine (should be in °F). The dot over the first cylinder on the EDM indicates that you are viewing data for that one cylinder.
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@Black-Square
Damn... I missed that... 🙈 of course that is not the average CHT... thank you pointing that out.
Then I am going to investigate the values and try to convert and/or rescale them properly. -
@Black-Square I compared the values on the gauge and variables an did the math. The odd answer is:
Multiplied by 1.8 and subtract around 459.5So "(LVAR:BKSQ_EGT_1_CYL1) 1.8 * 459.5 -" gives me very close what the EDM shows in the cockpit.
Works for EGT and CHT. TIT is already correct. -
Ah-ha! We now know your unit conversation problem! The values you were getting out of the simulator are in Kelvin! °K to °F is (K*1.8)-495.67. I'm sorry, I should have thought of that. I tried degrees Rankin, because the simulator uses that in so many places, but I didn't think to try Kelvin. Well, I hope that solves your problem and satisfies your curiosity anyhow!
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Works all flawlessly :)
While testing the gauge and making the bars blink if the values are over the limit of 450 °F for CHT and 1650 °F for EGT, I was not able to get the EGT to the Limit. Even while standing with full throttle and max rpm and leaning to peak with closed cowl flap. Is the Limit for EGT only theoretical?
